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2018 Jeep Wrangler

Owner reports · Recalls · Investigations

More warning signs than most Wrangler years

Owner complaints for the 2018 Jeep Wrangler are substantially higher than the model-year median of 265.

About this comparison →

When problems were reported

Mileage at the reported incident

1,199 reports with mileage · 616 unknown

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Steering. Review the 1,115 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Suspension. Review the 342 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 266 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

22 crash reports25 fire reports13 injury reports

What owners actually said

1,815 reports
Mileage unknown · Jun 10, 2026
SteeringSuspension

Any time I am over the speed of about 55 mph, and hit any type of bump, the steering wheel starts to shake violently. I have to slow down to about 40 mph to make it stop. I almost got rearended by an 18-wheeler yesterday on the interstate.

NHTSA ODI #11743278

100,000 miles · Jun 10, 2026
Engine And Engine CoolingPower Train

The contact owns a 2018 Jeep Wrangler. The contact stated that while driving at an undisclosed speed, the steering wheel seized and the vehicle failed to accelerate. The electronic parking brake, check engine, and several other unknown warning lights were illuminated. The contact shifted to park (P) and then drive (D) and was ab…

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The contact owns a 2018 Jeep Wrangler. The contact stated that while driving at an undisclosed speed, the steering wheel seized and the vehicle failed to accelerate. The electronic parking brake, check engine, and several other unknown warning lights were illuminated. The contact shifted to park (P) and then drive (D) and was able to continue driving. The vehicle was taken to the dealer, who was unable to duplicate the failure. The vehicle was taken to an independent mechanic, who determined that coolant had leaked into the computer and damaged the battery pack control module. The mechanic related the failure to Customer Satisfaction Program: Y40 (Control Module Software Updates); however, the VIN was not included. The vehicle was then towed to an unknown dealer; however, the vehicle was not yet diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 100,000.

NHTSA ODI #11743143

Mileage unknown · Jun 4, 2026
Service BrakesUnknown Or Other

I own a 2018 Jeep Wrangler that my 19 year old son drives for college. While driving, the vehicle jerked and became sluggish. There were no warning lights illuminated. I became aware that the front brake rotors had overheated again. I had the front right brake caliber and brake line changed back in 2024 and the issue has recurre…

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I own a 2018 Jeep Wrangler that my 19 year old son drives for college. While driving, the vehicle jerked and became sluggish. There were no warning lights illuminated. I became aware that the front brake rotors had overheated again. I had the front right brake caliber and brake line changed back in 2024 and the issue has recurred this year. I had a local mechanic change the front brake pads and rotors for both front tires and caliber to right front side only in April/2026 and the issue has started again today. The vehicle was taken back to local mechanic to be diagnosed again. He stated that the brake fluid was unable to properly bleed through the brake line restricting air to fully purge from the hydraulic system, which can result in incomplete bleeding, reduced braking performance, uneven pad wear, brake drag, or brake fade and is part of the reason for burning smell near right front tire. He added that car isn’t safe to drive in this condition due to safety concerns of accidents due to inability to properly brake or even a fire. Vehicle hasn’t been repaired due to cost and I will attempt to contact manufacturer. The initial mileage reading when this issue occurred in 2024 was 90,000 miles. The mileage as of this complaint is 112,392.

NHTSA ODI #11742146

Mileage unknown · May 30, 2026
Electrical System

My electronic instrument panel went completely out. I could not tell my speed, amount of gas, mileage, or anything else. This happened suddenly and without any warning.

NHTSA ODI #11741084

Mileage unknown · May 28, 2026
Power Train

I had the clutch plate recall done on my 2018 jeep wrangler unlimited 3.6 in January 2024. The first 8 months my dash lite up warning me my clutch is overheating and to reduce clutch use. This happens every time im on traffic or reversing around obstacles going up hill. The dash also lite up saying clutch performance is limited …

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I had the clutch plate recall done on my 2018 jeep wrangler unlimited 3.6 in January 2024. The first 8 months my dash lite up warning me my clutch is overheating and to reduce clutch use. This happens every time im on traffic or reversing around obstacles going up hill. The dash also lite up saying clutch performance is limited reduce clutch use. This is still happening after the recall was completed and its May 2026 currently trying to get it fixed. I have pictures of the dash lighting up with 3 different warning about the clutch plate

NHTSA ODI #11740630

Mileage unknown · May 22, 2026
EngineCrash

Was stopping at red light. Got to about 5mph when Jeep accelerated to about 35mph. I was standing on the breaks but the Jeep kept accelerating until impact struck the car in front me which was stopped. I have video.

NHTSA ODI #11739609

Mileage unknown · May 20, 2026
Electrical System

Defect in the instrument panel cluster (IPC) that can cause it to go blank or fail entirely. Screen is completely blank which makes it impossible to monitor or see any warnings for vehicle with it being an electrical dash. There is a safety recall on 2018-2024 Wranglers, but for some reason my VIN does not populate on the recall…

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Defect in the instrument panel cluster (IPC) that can cause it to go blank or fail entirely. Screen is completely blank which makes it impossible to monitor or see any warnings for vehicle with it being an electrical dash. There is a safety recall on 2018-2024 Wranglers, but for some reason my VIN does not populate on the recall when I have a 2018 Wrangler. This has caused me not to be monitor oil life, fuel, and see check engine notifications. NHTSA Recall Number: 24V‑652 for year model 2018–2024 Wranglers (and 2020–2024 Gladiators)

NHTSA ODI #11739012

Mileage unknown · May 18, 2026
Electrical SystemEngineSteering

I bought this vehicle used in 2022 from CarMax. According to Jeep (Stellantis) Co. multiple recalls were fixed by the previous owner, but the patch available for 2018 Jeep Wranglers was not done. In 2024 my iphone and Mac laptop were hacked and shortly after I began having problems with my 2018 Jeep Wrangler. My alarm system sta…

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I bought this vehicle used in 2022 from CarMax. According to Jeep (Stellantis) Co. multiple recalls were fixed by the previous owner, but the patch available for 2018 Jeep Wranglers was not done. In 2024 my iphone and Mac laptop were hacked and shortly after I began having problems with my 2018 Jeep Wrangler. My alarm system started going off while I was in my home without touching or being near the FOB. When I used my FOB to unlock the doors, they would lock back before I could open the door. I was unable to use the push button start for a few minutes up to 15 minutes and in 2025 I was unable to use the push button at all on most days. I had to research a work around to be able to start my Jeep and even after that depending on the day, it takes several seconds to minutes to start it this way. On 2 different occasions as I was driving, I had no control over my steering for approx. 10 seconds. I held on to the wheel and slowed down. The control returned and I was able to drive home. I researched and found out that 2014-2018 had reports of hacking and the hacker taking control of the vehicle in multiple ways including steering, brakes, alarm system, and hacking FOB. My radio has been turned off and the stations changed. One of my FOBs was tampered with, including switching the lock and unlock button's capability, panic button was disabled, and now the FOB does not work at all. There is a loud grinding noise behind my glove box that can be heard at different times including when Jeep is turned off. Loud noises that sound like a rock hitting the window happen randomly to my front windshield, driver and passenger windows happens multiple times while I am driving and when vehicle is turned off. I took Jeep to a trusted mechanic and was told there was no way to tell and it would be better to just sell it. After I moved, I didn't experience these problems for a while, but am experiencing them again. I am concerned for my safety and anyone who may be a passenger in my Jeep.

NHTSA ODI #11738632

Mileage unknown · May 17, 2026
Engine

Engine - The vehicle is available but the engine was replaced. I was able to get home however there was a potential for significant engine failure. Yes it was inspected by an independent service center. Yes it was inspected by an independent service center. A check engine light came on. Upon further inspection it was a Cylinder…

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Engine - The vehicle is available but the engine was replaced. I was able to get home however there was a potential for significant engine failure. Yes it was inspected by an independent service center. Yes it was inspected by an independent service center. A check engine light came on. Upon further inspection it was a Cylinder 6 misfire P0306. When the engine was inspected further by a mechanic it was determined that the cylinder wall was damaged and that coolant had entered the cylinder. Due to the extent of the engine damage the engine needed to be replaced.

NHTSA ODI #11738445

Mileage unknown · May 16, 2026
Engine

Oil cooler failure at 7 years and 90000 miles. This is a known engineering issue due to a plastic housing that is resolved by upgrading the oil cooler housing to aluminum instead of plastic. It’s a $1000 repair. Because this is an engineering issue the consumer should not have to pay the entire cost of the repair. This is a SAFE…

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Oil cooler failure at 7 years and 90000 miles. This is a known engineering issue due to a plastic housing that is resolved by upgrading the oil cooler housing to aluminum instead of plastic. It’s a $1000 repair. Because this is an engineering issue the consumer should not have to pay the entire cost of the repair. This is a SAFETY AND ENVIRONMENTAL HAZARD DUE TO THE LEAKAGE OF OIL CAUSED BY THIS FAILURE. It should definitely be deemed a recall and fixed at the expense of the manufacturer!

NHTSA ODI #11738326

Official recalls

14

24V676000 · Back Over Prevention: Sensing System: Camera; Exterior Lighting:brake Lights

Sep 12, 2024

Chrysler (FCA US, LLC) is recalling certain 2018-2024 Jeep Wrangler vehicles. The wiring harness for the rearview camera and the center brake light may short circuit, which can disable the rearview camera image and center brake light. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard numbers 111, "Rear Visibility" and 108, "Lamps, Reflective Devices, and Associated Equipment."

Consequence & remedy

Consequence: A rearview camera image that does not display decreases the driver's visibility, increasing the risk of a crash. Additionally, a center brake light that fails to illuminate can fail to indicate to other drivers that the vehicle is slowing down, increasing the risk of a crash.

Remedy: Dealers replaced the harness for the center brake light and rearview camera and/or the spare tire carrier/harness assembly, as necessary, free of charge. All vehicles were repaired by January 15, 2024. Owner notification letters were mailed September 26, 2024. Owners may contact FCA US, LLC customer service at 1-800-853-1403. FCA US, LLC's number for this recall is 77B.

Additional source detail variants (2)

Back Over Prevention: Sensing System: Camera

Chrysler (FCA US, LLC) is recalling certain 2018-2024 Jeep Wrangler vehicles. The wiring harness for the rearview camera and the center brake light may short circuit, which can disable the rearview camera image and center brake light. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard numbers 111, "Rear Visibility" and 108, "Lamps, Reflective Devices, and Associated Equipment."

Consequence: A rearview camera image that does not display decreases the driver's visibility, increasing the risk of a crash. Additionally, a center brake light that fails to illuminate can fail to indicate to other drivers that the vehicle is slowing down, increasing the risk of a crash.

Remedy: Dealers replaced the harness for the center brake light and rearview camera and/or the spare tire carrier/harness assembly, as necessary, free of charge. All vehicles were repaired by January 15, 2024. Owner notification letters were mailed September 26, 2024. Owners may contact FCA US, LLC customer service at 1-800-853-1403. FCA US, LLC's number for this recall is 77B.

Exterior Lighting:brake Lights

Chrysler (FCA US, LLC) is recalling certain 2018-2024 Jeep Wrangler vehicles. The wiring harness for the rearview camera and the center brake light may short circuit, which can disable the rearview camera image and center brake light. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard numbers 111, "Rear Visibility" and 108, "Lamps, Reflective Devices, and Associated Equipment."

Consequence: A rearview camera image that does not display decreases the driver's visibility, increasing the risk of a crash. Additionally, a center brake light that fails to illuminate can fail to indicate to other drivers that the vehicle is slowing down, increasing the risk of a crash.

Remedy: Dealers replaced the harness for the center brake light and rearview camera and/or the spare tire carrier/harness assembly, as necessary, free of charge. All vehicles were repaired by January 15, 2024. Owner notification letters were mailed September 26, 2024. Owners may contact FCA US, LLC customer service at 1-800-853-1403. FCA US, LLC's number for this recall is 77B.

24V652000 · Electrical System: Instrument Cluster/panel

Sep 5, 2024

Chrysler (FCA US, LLC) is recalling certain 2020-2024 Jeep Gladiator and 2018-2024 Jeep Wrangler vehicles. The instrument panel cluster may experience an internal short circuit and fail. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 101, "Controls and Displays."

Consequence & remedy

Consequence: An instrument panel that fails to display critical safety information, such as the speedometer or warning lights, can increase the risk of a crash.

Remedy: Dealers will replace the instrument panel cluster, free of charge. Owner notification letters were mailed between October 3, 2024, and January 23, 2025. Owners may contact FCA customer service at 1-800-853-1403. FCA's number for this recall is 30B.

23V116000 · Power Train:clutch Assembly

Feb 23, 2023

Chrysler (FCA US, LLC) is recalling certain 2018-2023 Jeep Wrangler, and 2020-2023 Jeep Gladiator vehicles equipped with manual transmissions. The clutch pressure plate may overheat and fracture.

Consequence & remedy

Consequence: Overheated clutch components may increase the risk of a fire. Additionally, damage to other nearby components can result in debris falling onto the road or a loss of drive, increasing the risk of a crash.

Remedy: Dealers will replace the clutch assembly and update the software, free of charge. Owner notification letters were mailed from November 16, 2023 through July 25, 2024. Owners may contact (FCA US, LLC) customer service at 1-800-853-1403. FCA US LLC's number for this recall is 19A. This recall expands and replaces previous recall 21V-028. Vehicles previously repaired under recall 21V-028 will need to have the new remedy completed.

21V028000 · Power Train:clutch Assembly

Jan 28, 2021

Chrysler (FCA US, LLC) is recalling certain 2018-2021 Jeep Wrangler and 2020-2021 Jeep Gladiator vehicles equipped with manual transmissions. The clutch pressure plate may overheat and fracture.

Consequence & remedy

Consequence: Overheated clutch components may increase the risk of a fire. Additionally, damage to other nearby components can result in debris falling onto the road or a loss of drive, increasing the risk of a crash.

Remedy: FCA US LLC will notify owners, and dealers will add software to reduce engine torque capability when clutch assembly temperatures rise to a level that may damage the inner pressure plate, free of charge." FCA has ordered a stop sale for the affected vehicles as of February 25, 2021. Owner notification letters were mailed on March 4, 2021.

20V124000 · Power Train:clutch Assembly

Mar 3, 2020

Chrysler (FCA US LLC) is recalling certain 2018-2020 Jeep Wrangler and 2020 Gladiator vehicles equipped with manual transmissions. The clutch pressure plate may overheat and fracture.

Consequence & remedy

Consequence: The overheated clutch components may increase the risk of a fire. Additionally, damage to other nearby components can result in debris falling onto the road or a loss of drive, increasing the risk of a crash.

Remedy: Chrysler will notify owners, and dealers will reroute a wire harness and inspect the clutch system, and replace components as needed. The recall began April 30, 2020. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is W12.

19V680000 · Seat Belts:front:anchorage

Sep 26, 2019

Chrysler (FCA US LLC) is recalling certain 2011-2018 Jeep Wrangler right hand drive vehicles. The driver's seat belt buckle mounting strap may fracture and separate from the seat frame.

Consequence & remedy

Consequence: A separated or severed seat belt buckle strap will result in an inoperable seat belt, increasing the risk of injury in the event of a crash.

Remedy: FCA US will notify owners, and dealers will replace the driver's seat belt buckle, free of charge. Interim notices informing owners of the safety risk were mailed November 19, 2019. Owners will received a second letter and the recall began March 26, 2020. Owners may contact FCA customer service at 1-800-853-1403. FCA's number for this recall is VA6.

19V320000 · Equipment

Apr 23, 2019

Erwin Hymer Group USA LP dba American Fastbacks (EHGUSA-AF) is recalling certain 2018 Jeep Wrangler vehicles sold with a roof top tent installed. The top cover of the roof top tent may crack or break, possibly resulting in the cover detaching from the vehicle while moving.

Consequence & remedy

Consequence: If the roof top tent cover detaches from the vehicle while moving, it can create a road hazard, increasing the risk of a crash.

Remedy: The remedy for this recall is still under development. The recall began May 9, 2019. Owners may contact American Fastbacks customer service at 1-844-533-7997 extension 301. Note: Vehicles in this recall are also included in recall 19V-190.

18V786000 · Latches/locks/linkages:doors:latch

Nov 8, 2018

Chrysler (FCA US LLC) is recalling certain 2018 Jeep Wrangler four-door vehicles. The right rear passenger door latch may not be in the correct location, possibly preventing the door from latching properly.

Consequence & remedy

Consequence: If the right rear passenger door opens unexpectedly, it can increase the risk of injury.

Remedy: Chrysler will notify owners, and dealers will repair the right rear door latch reinforcement, free of charge. The recall begin December 6, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is UB6.

18V675000 · Structure:frame And Members

Sep 28, 2018

Chrysler (FCA US LLC) is recalling certain 2018-2019 Jeep Wrangler vehicles. The front track bar brackets may be improperly welded, which can cause the bracket to separate from the frame, reducing steering capability.

Consequence & remedy

Consequence: An unexpected reduction in steering ability, can increase the risk of a crash.

Remedy: Chrysler will notify owners, and dealers will inspect and repair the track bar bracket welds, as necessary, free of charge. The recall is expected to begin November 17, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is UA5.

18V524000 · Electrical System:wiring:front Underhood

Aug 9, 2018

Chrysler (FCA US LLC) is recalling certain 2018 Jeep Renegade, Compass and Grand Cherokee, RAM 1500 and Promaster, Fiat 500x, Dodge Journey, Challenger, Charger and Durango and Chrysler 300x vehicles, 2017-2018 Jeep Wrangler, Dodge Grand Caravan and Chrysler Town and Country vehicles and 2018-2019 Jeep Cherokee and 2018 Chrysler Pacifica and Pacifica Hybrid vehicles. The powertrain control module may be equipped with a voltage regulator chip in the circuit board that may fail, causing a stall or a no start condition.

Consequence & remedy

Consequence: A vehicle stall can increase the risk of a crash.

Remedy: Chrysler will notify owners, and dealers will replace the powertrain control module, free of charge. The recall began October 2, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is U87.

18V343000 · Steering

May 25, 2018

Chrysler (FCA US LLC) is recalling certain 2018 Jeep Wrangler vehicles. The intermediate steering shaft may not have been properly welded causing a split where the external spline is formed.

Consequence & remedy

Consequence: If the weld seam splits, the steering wheel may lose center positioning causing a loss of steering responsiveness and increasing the risk of a crash.

Remedy: Chrysler will notify owners, and dealers will inspect and, as necessary, replace the intermediate steering shaft, free of charge. The recall began June 21, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is U48.

18V332000 · Electrical System:software; Electrical System:wiring; Vehicle Speed Control:cruise Control

May 17, 2018

Chrysler (FCA US LLC) is recalling certain 2014-2018 Dodge Journey, Charger and Durango, RAM 2500, 3500, 3500 Cab Chassis (more than 10,000lb), 4500 Cab Chassis and 5500 Cab Chassis, Jeep Cherokee and Grand Cherokee and Chrysler 300, 2014-2019 RAM 1500, 2015-2018 Dodge Challenger, 2015-2017 Chrysler 200, 2016-2018 RAM 3500 Cab Chassis (less than 10,000 lb), 2017-2018 Chrysler Pacifica and 2018 Jeep Wrangler vehicles. These vehicles are being recalled to address a defect that could prevent the cruise control system from disengaging. If, when using cruise control, there is a short circuit within the vehicle's wiring, the driver may not be able to shut off the cruise control either by depressing the brake pedal or manually turning the system off once it has been engaged, resulting in either the vehicle maintaining its current speed or possibly accelerating.

Consequence & remedy

Consequence: If the vehicle maintains its speed or accelerates despite attempts to deactivate the cruise control, there would be an increased risk of a crash.

Remedy: Chrysler will notify owners, and dealers will inspect the software, and perform a software flash on the engine or powertrain control module, free of charge. The recall began June 4, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Note: Owners are advised to stop using cruise control until the software update has been performed. In the event that cruise control cannot be disengaged while driving, owners should firmly and steadily apply the brakes and shift the transmission to neutral, placing the vehicle in park once it has stopped.

Additional source detail variants (3)

Electrical System:software

Chrysler (FCA US LLC) is recalling certain 2014-2018 Dodge Journey, Charger and Durango, RAM 2500, 3500, 3500 Cab Chassis (more than 10,000lb), 4500 Cab Chassis and 5500 Cab Chassis, Jeep Cherokee and Grand Cherokee and Chrysler 300, 2014-2019 RAM 1500, 2015-2018 Dodge Challenger, 2015-2017 Chrysler 200, 2016-2018 RAM 3500 Cab Chassis (less than 10,000 lb), 2017-2018 Chrysler Pacifica and 2018 Jeep Wrangler vehicles. These vehicles are being recalled to address a defect that could prevent the cruise control system from disengaging. If, when using cruise control, there is a short circuit within the vehicle's wiring, the driver may not be able to shut off the cruise control either by depressing the brake pedal or manually turning the system off once it has been engaged, resulting in either the vehicle maintaining its current speed or possibly accelerating.

Consequence: If the vehicle maintains its speed or accelerates despite attempts to deactivate the cruise control, there would be an increased risk of a crash.

Remedy: Chrysler will notify owners, and dealers will inspect the software, and perform a software flash on the engine or powertrain control module, free of charge. The recall began June 4, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Note: Owners are advised to stop using cruise control until the software update has been performed. In the event that cruise control cannot be disengaged while driving, owners should firmly and steadily apply the brakes and shift the transmission to neutral, placing the vehicle in park once it has stopped.

Vehicle Speed Control:cruise Control

Chrysler (FCA US LLC) is recalling certain 2014-2018 Dodge Journey, Charger and Durango, RAM 2500, 3500, 3500 Cab Chassis (more than 10,000lb), 4500 Cab Chassis and 5500 Cab Chassis, Jeep Cherokee and Grand Cherokee and Chrysler 300, 2014-2019 RAM 1500, 2015-2018 Dodge Challenger, 2015-2017 Chrysler 200, 2016-2018 RAM 3500 Cab Chassis (less than 10,000 lb), 2017-2018 Chrysler Pacifica and 2018 Jeep Wrangler vehicles. These vehicles are being recalled to address a defect that could prevent the cruise control system from disengaging. If, when using cruise control, there is a short circuit within the vehicle's wiring, the driver may not be able to shut off the cruise control either by depressing the brake pedal or manually turning the system off once it has been engaged, resulting in either the vehicle maintaining its current speed or possibly accelerating.

Consequence: If the vehicle maintains its speed or accelerates despite attempts to deactivate the cruise control, there would be an increased risk of a crash.

Remedy: Chrysler will notify owners, and dealers will inspect the software, and perform a software flash on the engine or powertrain control module, free of charge. The recall began June 4, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Note: Owners are advised to stop using cruise control until the software update has been performed. In the event that cruise control cannot be disengaged while driving, owners should firmly and steadily apply the brakes and shift the transmission to neutral, placing the vehicle in park once it has stopped.

Electrical System:wiring

Chrysler (FCA US LLC) is recalling certain 2014-2018 Dodge Journey, Charger and Durango, RAM 2500, 3500, 3500 Cab Chassis (more than 10,000lb), 4500 Cab Chassis and 5500 Cab Chassis, Jeep Cherokee and Grand Cherokee and Chrysler 300, 2014-2019 RAM 1500, 2015-2018 Dodge Challenger, 2015-2017 Chrysler 200, 2016-2018 RAM 3500 Cab Chassis (less than 10,000 lb), 2017-2018 Chrysler Pacifica and 2018 Jeep Wrangler vehicles. These vehicles are being recalled to address a defect that could prevent the cruise control system from disengaging. If, when using cruise control, there is a short circuit within the vehicle's wiring, the driver may not be able to shut off the cruise control either by depressing the brake pedal or manually turning the system off once it has been engaged, resulting in either the vehicle maintaining its current speed or possibly accelerating.

Consequence: If the vehicle maintains its speed or accelerates despite attempts to deactivate the cruise control, there would be an increased risk of a crash.

Remedy: Chrysler will notify owners, and dealers will inspect the software, and perform a software flash on the engine or powertrain control module, free of charge. The recall began June 4, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Note: Owners are advised to stop using cruise control until the software update has been performed. In the event that cruise control cannot be disengaged while driving, owners should firmly and steadily apply the brakes and shift the transmission to neutral, placing the vehicle in park once it has stopped.

18V280000 · Power Train:automatic Transmission

May 1, 2018

Chrysler (FCA US LLC) is recalling certain 2018 Dodge Charger, Durango and Challenger, Jeep Grand Cherokee and Wrangler, Chrysler 300, and RAM 1500 vehicles. An incorrect transmission park lock rod may have been installed in the transmission.

Consequence & remedy

Consequence: If the incorrect park lock rod is installed, the transmission may not shift into 'PARK' and keep the vehicle from moving, increasing the risk of unintended vehicle movement and the risk of a crash.

Remedy: Chrysler will notify owners, and dealers will install the correct park lock rod, free of charge. The recall began June 28, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is U43.

18V231000 · Seats:mid/rear Assembly; Structure:frame And Members

Apr 12, 2018

Chrysler (FCA US LLC) is recalling certain 2018 Jeep Wrangler vehicles. The rear under body ladder rail may corrode, possibly reducing the strength of the rear floor pan and causing the left rear seat mount to become loose.

Consequence & remedy

Consequence: If the floor pan strength is reduced and/or the rear seat mount becomes loose, the rear seat may detach in a crash, increasing the risk of injury.

Remedy: Chrysler will notify owners, and dealers will inspect and, as necessary, coat the interior and exterior of the driver's side rear underbody ladder rail with three-part rust protection. The recall began September 11, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is U27.

Additional source detail variants (2)

Seats:mid/rear Assembly

Chrysler (FCA US LLC) is recalling certain 2018 Jeep Wrangler vehicles. The rear under body ladder rail may corrode, possibly reducing the strength of the rear floor pan and causing the left rear seat mount to become loose.

Consequence: If the floor pan strength is reduced and/or the rear seat mount becomes loose, the rear seat may detach in a crash, increasing the risk of injury.

Remedy: Chrysler will notify owners, and dealers will inspect and, as necessary, coat the interior and exterior of the driver's side rear underbody ladder rail with three-part rust protection. The recall began September 11, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is U27.

Structure:frame And Members

Chrysler (FCA US LLC) is recalling certain 2018 Jeep Wrangler vehicles. The rear under body ladder rail may corrode, possibly reducing the strength of the rear floor pan and causing the left rear seat mount to become loose.

Consequence: If the floor pan strength is reduced and/or the rear seat mount becomes loose, the rear seat may detach in a crash, increasing the risk of injury.

Remedy: Chrysler will notify owners, and dealers will inspect and, as necessary, coat the interior and exterior of the driver's side rear underbody ladder rail with three-part rust protection. The recall began September 11, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is U27.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

5

EA21002 · Desiccated Air Bag Inflator Rupture

Opened Sep 17, 2021 · No close date supplied

Status: open (inferred from source dates) · Air Bags:frontal:driver Side:inflator Module; Air Bags:frontal:passenger Side:inflator Module

From 2000 through 2017, Takata produced millions of air bag inflators using two types of phase-stabilized ammonium nitrate ("PSAN") propellant -- propellant 2004 and propellant 2004L. After prolonged exposure to high temperature cycles and humidity, inflators using propellant 2004 can degrade, causing the propellant to burn too quickly when ignited. The rapid burning can cause the inflator to rupture during deployment, potentially causing serious or even fatal injury to vehicle occupants. See 2016 Blomquist Report at www.nhtsa.gov/sites/nhtsa.gov/files/documents/expert_report-hrblomquist.pdf.Consequently, all frontal inflators using propellant 2004 that do not contain a "desiccant" (a substance that traps and holds moisture) in US vehicles are under recall. These "non-desiccated" inflators either have been or are required to be replaced.In some cases, the remedy part for these recalled inflators was, or will be, an inflator using either propellant 2004 or 2004L that does contain a desiccant. None of these "desiccated" remedy parts (which were installed in older model year vehicles) are currently under recall for a degradation concern. Certain subsets of desiccated PSAN inflators using propellant 2004 for use as original equipment, however, have been recalled for a degradation concern. All Takata inflators produced with propellant 2004L contain desiccant, and none of these desiccated inflators using propellant 2004L are under recall for a degradation concern. There have been no reported field ruptures in any non-recalled desiccated PSAN inflators.It is understood that desiccants fully saturate at some threshold, at which point any additional moisture will not be captured. This means the degradation process observed in non-desiccated inflators using propellant 2004 may also occur in non-recalled desiccated inflators using propellant 2004, assuming additional moisture enters the inflator and high temperature cycling occurs. Based on available information, desiccant saturation can occur within the first five years in the worst environments, and the time required for full saturation is affected by multiple factors. While no present safety risk has been identified, further work is needed to evaluate the future risk of non-recalled desiccated inflators using propellant 2004.Three entities -- Takata (now known as TK Global), the Independent Testing Coalition, and Exponent -- have been studying the long-term behavior of Takata desiccated PSAN inflators using propellant 2004L (as well as 2004) in the presence of moisture and temperature cycling. The research efforts, which include development of predictive modeling techniques and field sample analysis, are ongoing. To date, none of the researchers have identified field evidence showing that propellant 2004L is undergoing a degradation process that leads to aggressive deployment and potential rupture. However, the time in service of such inflators remains short compared to that of the inflators using propellant 2004. Further study is needed to assess the long-term safety of desiccated inflators using propellant 2004L.The Office of Defects Investigation is opening this investigation to examine whether a safety defect related to propellant degradation exists in non-recalled desiccated PSAN frontal inflators manufactured by Takata. This investigation will require extensive information on Takata production processes and surveys of inflators in the field. Lists of recall actions that may have used desiccated PSAN inflators as remedy parts, as well as the makes and models originally manufactured with them, is available with the downloadable version of this document (see nhtsa.gov/recalls?nhtsaId=EA21002 -- note this information is subject to change/revision as the investigation proceeds). This investigation does not supersede EA15-001, which remains open.

Additional source detail variants (2)

Air Bags:frontal:driver Side:inflator Module

From 2000 through 2017, Takata produced millions of air bag inflators using two types of phase-stabilized ammonium nitrate ("PSAN") propellant -- propellant 2004 and propellant 2004L. After prolonged exposure to high temperature cycles and humidity, inflators using propellant 2004 can degrade, causing the propellant to burn too quickly when ignited. The rapid burning can cause the inflator to rupture during deployment, potentially causing serious or even fatal injury to vehicle occupants. See 2016 Blomquist Report at www.nhtsa.gov/sites/nhtsa.gov/files/documents/expert_report-hrblomquist.pdf.Consequently, all frontal inflators using propellant 2004 that do not contain a "desiccant" (a substance that traps and holds moisture) in US vehicles are under recall. These "non-desiccated" inflators either have been or are required to be replaced.In some cases, the remedy part for these recalled inflators was, or will be, an inflator using either propellant 2004 or 2004L that does contain a desiccant. None of these "desiccated" remedy parts (which were installed in older model year vehicles) are currently under recall for a degradation concern. Certain subsets of desiccated PSAN inflators using propellant 2004 for use as original equipment, however, have been recalled for a degradation concern. All Takata inflators produced with propellant 2004L contain desiccant, and none of these desiccated inflators using propellant 2004L are under recall for a degradation concern. There have been no reported field ruptures in any non-recalled desiccated PSAN inflators.It is understood that desiccants fully saturate at some threshold, at which point any additional moisture will not be captured. This means the degradation process observed in non-desiccated inflators using propellant 2004 may also occur in non-recalled desiccated inflators using propellant 2004, assuming additional moisture enters the inflator and high temperature cycling occurs. Based on available information, desiccant saturation can occur within the first five years in the worst environments, and the time required for full saturation is affected by multiple factors. While no present safety risk has been identified, further work is needed to evaluate the future risk of non-recalled desiccated inflators using propellant 2004.Three entities -- Takata (now known as TK Global), the Independent Testing Coalition, and Exponent -- have been studying the long-term behavior of Takata desiccated PSAN inflators using propellant 2004L (as well as 2004) in the presence of moisture and temperature cycling. The research efforts, which include development of predictive modeling techniques and field sample analysis, are ongoing. To date, none of the researchers have identified field evidence showing that propellant 2004L is undergoing a degradation process that leads to aggressive deployment and potential rupture. However, the time in service of such inflators remains short compared to that of the inflators using propellant 2004. Further study is needed to assess the long-term safety of desiccated inflators using propellant 2004L.The Office of Defects Investigation is opening this investigation to examine whether a safety defect related to propellant degradation exists in non-recalled desiccated PSAN frontal inflators manufactured by Takata. This investigation will require extensive information on Takata production processes and surveys of inflators in the field. Lists of recall actions that may have used desiccated PSAN inflators as remedy parts, as well as the makes and models originally manufactured with them, is available with the downloadable version of this document (see nhtsa.gov/recalls?nhtsaId=EA21002 -- note this information is subject to change/revision as the investigation proceeds). This investigation does not supersede EA15-001, which remains open.

Air Bags:frontal:passenger Side:inflator Module

From 2000 through 2017, Takata produced millions of air bag inflators using two types of phase-stabilized ammonium nitrate ("PSAN") propellant -- propellant 2004 and propellant 2004L. After prolonged exposure to high temperature cycles and humidity, inflators using propellant 2004 can degrade, causing the propellant to burn too quickly when ignited. The rapid burning can cause the inflator to rupture during deployment, potentially causing serious or even fatal injury to vehicle occupants. See 2016 Blomquist Report at www.nhtsa.gov/sites/nhtsa.gov/files/documents/expert_report-hrblomquist.pdf.Consequently, all frontal inflators using propellant 2004 that do not contain a "desiccant" (a substance that traps and holds moisture) in US vehicles are under recall. These "non-desiccated" inflators either have been or are required to be replaced.In some cases, the remedy part for these recalled inflators was, or will be, an inflator using either propellant 2004 or 2004L that does contain a desiccant. None of these "desiccated" remedy parts (which were installed in older model year vehicles) are currently under recall for a degradation concern. Certain subsets of desiccated PSAN inflators using propellant 2004 for use as original equipment, however, have been recalled for a degradation concern. All Takata inflators produced with propellant 2004L contain desiccant, and none of these desiccated inflators using propellant 2004L are under recall for a degradation concern. There have been no reported field ruptures in any non-recalled desiccated PSAN inflators.It is understood that desiccants fully saturate at some threshold, at which point any additional moisture will not be captured. This means the degradation process observed in non-desiccated inflators using propellant 2004 may also occur in non-recalled desiccated inflators using propellant 2004, assuming additional moisture enters the inflator and high temperature cycling occurs. Based on available information, desiccant saturation can occur within the first five years in the worst environments, and the time required for full saturation is affected by multiple factors. While no present safety risk has been identified, further work is needed to evaluate the future risk of non-recalled desiccated inflators using propellant 2004.Three entities -- Takata (now known as TK Global), the Independent Testing Coalition, and Exponent -- have been studying the long-term behavior of Takata desiccated PSAN inflators using propellant 2004L (as well as 2004) in the presence of moisture and temperature cycling. The research efforts, which include development of predictive modeling techniques and field sample analysis, are ongoing. To date, none of the researchers have identified field evidence showing that propellant 2004L is undergoing a degradation process that leads to aggressive deployment and potential rupture. However, the time in service of such inflators remains short compared to that of the inflators using propellant 2004. Further study is needed to assess the long-term safety of desiccated inflators using propellant 2004L.The Office of Defects Investigation is opening this investigation to examine whether a safety defect related to propellant degradation exists in non-recalled desiccated PSAN frontal inflators manufactured by Takata. This investigation will require extensive information on Takata production processes and surveys of inflators in the field. Lists of recall actions that may have used desiccated PSAN inflators as remedy parts, as well as the makes and models originally manufactured with them, is available with the downloadable version of this document (see nhtsa.gov/recalls?nhtsaId=EA21002 -- note this information is subject to change/revision as the investigation proceeds). This investigation does not supersede EA15-001, which remains open.

PE19012 · Frame Weld Deficiencies

Opened Sep 16, 2019 · Closed Oct 29, 2023

Status: closed (inferred from source dates) · Steering; Structure:frame And Members

On September 16, 2019, the Office of Defects Investigation (ODI) granted Defect Petition DP18-004 and opened Preliminary Evaluation PE19-012 to investigate allegations of deficient frame welds and their potential safety related effects on 2018-2019 Jeep Wranglers. Due to a previous steering related recall that was caused by a misaligned weld on the front track bar (NHTSA Recall No. 18V-675), ODI decided to include reports of steering shimmy or wobble, loose steering, and steering stiction (loss of power steering) as part of this investigation and parent petition (DP18-004). ODI received information from the vehicle manufacturer Fiat Chrysler Automobiles (FCA) via information request letters dated March 8, 2019, and February 6, 2020. Supplemental requests for information occurred between July 2020 and July 2023. A review of the responsive manufacturer information showed that vehicles presenting an unexpected reduction in steering ability due to a welding tool misalignment were correctly addressed via recall 18V-675. General complaints concerning the weld appearance were not associated with a realized risk to motor vehicle safety. ODI identified a limited number of reports involving weld separation on vehicles that were out of scope of recall 18V-675. FCA identified various causes of weld quality issues in early production (build dates prior to March 2018) including improper welding techniques on galvanized frames and component part variation leading to off-seam welds. These issues were addressed in production for subject vehicles built after July 2018 and preceded a drop in weld failure reports. ODI reviewed manufacturer and agency reports of weld failures out of scope of recall 18V-675 and did not find any that resulted in a loss of vehicle control. There are no known crashes, injuries, or fatalities as a result of weld failures on vehicles not included in recall 18V-675. Due to the steering related consequence associated with Recall 18V-675, ODI opted to include a request for information regarding various steering issues experienced by vehicles included in this investigation. ODI reviewed manufacturer as well as agency data and determined these various steering issues were not related to any weld defect. Since the opening of this investigation, FCA has addressed the following steering concerns; a. Steering looseness due to material choice in the steering box internal components. FCA released an updated part with an internal component material less sensitive to temperature variances (TSB 08-003-21 REV. A).NHTSA will take further investigative action if justified. b. Steering wobble or shimmy due to a manufacturing and design deficiency in the steering damper. FCA released a part via Customer Satisfaction Notification (CSN) V41 in June 2019 which implemented supplier quality control improvements and design changes due to the presence of air in the base valve which degraded damping performance.NHTSA will take further investigative action if justified. c. Steering stiction, or loss of power steering, due to an underpowered steering pump calibration that occurred at highway speeds during cold weather. In December 2021, FCA released CSN Y95 which corrected this issue via software update. Due to the decreased number of consumer complaints, the service campaign appears to have addressed the issue related to an underpowered steering pump. NHTSA will take further investigative action if justified. The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist. The Agency reserves the right to take additional action if warranted by future circumstances. To review the ODI reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.

Additional source detail variants (2)

Steering

On September 16, 2019, the Office of Defects Investigation (ODI) granted Defect Petition DP18-004 and opened Preliminary Evaluation PE19-012 to investigate allegations of deficient frame welds and their potential safety related effects on 2018-2019 Jeep Wranglers. Due to a previous steering related recall that was caused by a misaligned weld on the front track bar (NHTSA Recall No. 18V-675), ODI decided to include reports of steering shimmy or wobble, loose steering, and steering stiction (loss of power steering) as part of this investigation and parent petition (DP18-004). ODI received information from the vehicle manufacturer Fiat Chrysler Automobiles (FCA) via information request letters dated March 8, 2019, and February 6, 2020. Supplemental requests for information occurred between July 2020 and July 2023. A review of the responsive manufacturer information showed that vehicles presenting an unexpected reduction in steering ability due to a welding tool misalignment were correctly addressed via recall 18V-675. General complaints concerning the weld appearance were not associated with a realized risk to motor vehicle safety. ODI identified a limited number of reports involving weld separation on vehicles that were out of scope of recall 18V-675. FCA identified various causes of weld quality issues in early production (build dates prior to March 2018) including improper welding techniques on galvanized frames and component part variation leading to off-seam welds. These issues were addressed in production for subject vehicles built after July 2018 and preceded a drop in weld failure reports. ODI reviewed manufacturer and agency reports of weld failures out of scope of recall 18V-675 and did not find any that resulted in a loss of vehicle control. There are no known crashes, injuries, or fatalities as a result of weld failures on vehicles not included in recall 18V-675. Due to the steering related consequence associated with Recall 18V-675, ODI opted to include a request for information regarding various steering issues experienced by vehicles included in this investigation. ODI reviewed manufacturer as well as agency data and determined these various steering issues were not related to any weld defect. Since the opening of this investigation, FCA has addressed the following steering concerns; a. Steering looseness due to material choice in the steering box internal components. FCA released an updated part with an internal component material less sensitive to temperature variances (TSB 08-003-21 REV. A).NHTSA will take further investigative action if justified. b. Steering wobble or shimmy due to a manufacturing and design deficiency in the steering damper. FCA released a part via Customer Satisfaction Notification (CSN) V41 in June 2019 which implemented supplier quality control improvements and design changes due to the presence of air in the base valve which degraded damping performance.NHTSA will take further investigative action if justified. c. Steering stiction, or loss of power steering, due to an underpowered steering pump calibration that occurred at highway speeds during cold weather. In December 2021, FCA released CSN Y95 which corrected this issue via software update. Due to the decreased number of consumer complaints, the service campaign appears to have addressed the issue related to an underpowered steering pump. NHTSA will take further investigative action if justified. The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist. The Agency reserves the right to take additional action if warranted by future circumstances. To review the ODI reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.

Structure:frame And Members

On September 16, 2019, the Office of Defects Investigation (ODI) granted Defect Petition DP18-004 and opened Preliminary Evaluation PE19-012 to investigate allegations of deficient frame welds and their potential safety related effects on 2018-2019 Jeep Wranglers. Due to a previous steering related recall that was caused by a misaligned weld on the front track bar (NHTSA Recall No. 18V-675), ODI decided to include reports of steering shimmy or wobble, loose steering, and steering stiction (loss of power steering) as part of this investigation and parent petition (DP18-004). ODI received information from the vehicle manufacturer Fiat Chrysler Automobiles (FCA) via information request letters dated March 8, 2019, and February 6, 2020. Supplemental requests for information occurred between July 2020 and July 2023. A review of the responsive manufacturer information showed that vehicles presenting an unexpected reduction in steering ability due to a welding tool misalignment were correctly addressed via recall 18V-675. General complaints concerning the weld appearance were not associated with a realized risk to motor vehicle safety. ODI identified a limited number of reports involving weld separation on vehicles that were out of scope of recall 18V-675. FCA identified various causes of weld quality issues in early production (build dates prior to March 2018) including improper welding techniques on galvanized frames and component part variation leading to off-seam welds. These issues were addressed in production for subject vehicles built after July 2018 and preceded a drop in weld failure reports. ODI reviewed manufacturer and agency reports of weld failures out of scope of recall 18V-675 and did not find any that resulted in a loss of vehicle control. There are no known crashes, injuries, or fatalities as a result of weld failures on vehicles not included in recall 18V-675. Due to the steering related consequence associated with Recall 18V-675, ODI opted to include a request for information regarding various steering issues experienced by vehicles included in this investigation. ODI reviewed manufacturer as well as agency data and determined these various steering issues were not related to any weld defect. Since the opening of this investigation, FCA has addressed the following steering concerns; a. Steering looseness due to material choice in the steering box internal components. FCA released an updated part with an internal component material less sensitive to temperature variances (TSB 08-003-21 REV. A).NHTSA will take further investigative action if justified. b. Steering wobble or shimmy due to a manufacturing and design deficiency in the steering damper. FCA released a part via Customer Satisfaction Notification (CSN) V41 in June 2019 which implemented supplier quality control improvements and design changes due to the presence of air in the base valve which degraded damping performance.NHTSA will take further investigative action if justified. c. Steering stiction, or loss of power steering, due to an underpowered steering pump calibration that occurred at highway speeds during cold weather. In December 2021, FCA released CSN Y95 which corrected this issue via software update. Due to the decreased number of consumer complaints, the service campaign appears to have addressed the issue related to an underpowered steering pump. NHTSA will take further investigative action if justified. The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist. The Agency reserves the right to take additional action if warranted by future circumstances. To review the ODI reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.

PE19008 · Seat Belt Buckle Bracket Failure

Opened Jul 29, 2019 · Closed Dec 12, 2019

Status: closed (inferred from source dates) · Seat Belts:front:buckle Assembly

On July 17, 2019, NHTSA's Office of Defects Investigation (ODI) opened Preliminary Evaluation (PE) 19-008 after receiving three Vehicle Owner Questionnaire (VOQ) reports alleging the driver's side seat belt buckle separated from the seat frame, rendering the seat belt non-functional. The VOQs involved model year (MY) 2015 and 2016 Jeep Wrangler (JK platform) that were configured for right-hand drive (RHD) use. On August 8, 2019, ODI issued an information request (IR) letter to FCA.The scope of the IR included all JK Wrangler produced for sale in the U.S. (both left- and right-hand drive), and amongst other things, requested any reports or allegations of driver's seat belt bracket failures on these vehicles. In its review of FCA's response, ODI determined that approximately 1.7 million JK Wrangler were produced from MY 2007 to 2018, about 16,000 of which were configured for RHD. ODI notes that the RHD Wrangler are typically used for rural postal delivery which often experience a more severe duty cycle. Also RHD JK was was not produced in MY 2007.As explained in the IR response, FCA identified three distinct populations of JK Wrangler concerning the driver's seat belt bucket bracket; specifically the MY 2007-2018 LHD (~1.7M units), the MY 2008-2010 RHD (4,563 units), and the MY 2011-2018 RHD (11,463 units) populations.FCA provided details on the designs used in each of these populations, identifying specific differences deemed pertinent to the strength and durability of each unique bracket design. FCA further reviewed its analysis of the complaint and warranty data identified under the IR, and noting that it had not identified any allegations of bracket failures on the LHD population, and only one allegation on the MY 2008-2010 RHD vehicles. By comparison, FCA identified 24 allegations of bracket failure for the MY 2011-2018 RHD JK, including two reports duplicative of the VOQs. Neither the FCA nor the VOQ reports allege an injury or fatality due to bracket failure. Based on this analysis, FCA decided to conduct a safety recall for the MY 2011-2018 RHD JK population. On September 30, 2019, FCA submitted a Defect Information Report initiating NHTSA Safety Recall 19V-680 (FCA No. VA6). Under the recall action, FCA will replace the driver's seat belt bracket on MY 2011-2018 RHD Jeep JK Wrangler. The repair will be conducted free of charge.In view of FCA's recall action, and its explanations of the scope of that action, ODI is closing PE19-008. ODI will continue to monitor the non-recalled RHD, and the LHD JK Wrangler for evidence of seat belt bracket failure and will take further action if warranted.The three VOQ reports cited above can be reviewed at NHTSA.gov under the following reference numbers:11190251, 11218472, 11231639.

EA19001 · Electrical Overstress

Opened Apr 19, 2019 · Closed Sep 19, 2024

Status: closed (inferred from source dates) · Air Bags: Air Bag/restraint Control Module

The Office of Defects Investigation (ODI) opened this investigation to determine if the failure of airbags to deploy during severe crashes, in certain vehicles, was the result of a safety related defect.  During the investigation a complex failure was studied that can result in non-deployment of subject vehicle air bags and other restraint system devices in severe crash events. The subject vehicles may be equipped with an airbag control unit (ACU) for the supplemental restraint system (SRS) Electronic Control Unit (ECU) manufactured by ZF-TRW.  The ECU receives signals from crash sensors mounted in the vehicle and deploys the vehicle air bags and seat belt pretensioners in accordance with manufacturer design specifications.  The ECU in the subject vehicles contains a model DS84 application-specific integrated circuit (ASIC) which controls the communication of the crash sensor signal, firing commands (i.e., when to deploy the airbag(s) and/or pretensioners), and fault information (e.g., diagnostic trouble codes). In September 2016, FCA announced recall 16V-668 for certain model year (MY) 2010 to 2014 Chrysler, Dodge and Jeep products manufactured with the subject ZF-TRW ACU.  In this recall, FCA discussed an EOS condition that resulted in a failure of the subject DS84 ASIC, which caused air bag non-deployment.  FCA noted that the defect condition had only been observed in vehicles equipped with sensor harnessing routed across the front of the vehicle.  Other FCA vehicles that also used the subject ACU, but were not equipped with cross-car harnessing, had not experienced EOS failures, despite similar time in service. During the course of this investigation, ODI sent two separate Information Request (IR) letters to six vehicle manufactures (including FCA, Hyundai, Honda, Kia, Mitsubishi, and Toyota) and one IR letter to ZF-TRW.  These IR letters resulted in ODI receiving comprehensive data from these manufacturers and suppliers. Studies of this data found that the DS84 ASIC does not have sufficient protection against negative electrical transients or electrical overstress (“EOS”) that can be generated in certain severe crashes.  An electrical transient occurs when the electrical power supplied to a circuit changes momentarily over a short duration of time.   In these severe crash cases, the crash sensors and other powered wiring can be damaged and short circuited so as to create a negative electrical transient of sufficient intensity and duration (that are outside the vehicle manufacturer's specification) to damage the ASIC before the restraint device deployment signal is received by the SRS ECU.  This damaged signal can lead to incomplete or nondeployment of the air bags and/or pretensioners.  Airbag non-deployment and/or lack of pretensioner operation can increase the risk or severity of injury in a crash.A total of 8 fatalities and 14 injuries were associated with known EOS events. The common element in all investigated manufacturers vehicles is the SRS ECU containing a DS84 ASIC manufactured by ZF-TRW.  The risk associated with the ASIC is equally shared among all OEMS involved in the investigation.  The actual real-world risk can be mitigated by other factors which were assessed by ODI during this investigation. The first mitigating factor involves protections built into the ACU design which protect the DS84 ASIC from damage.  There are multiple strategies and levels of protection employed by different OEMs that provide effective EOS mitigation.  The two most common strategies at the ACU level are circuit protection diodes on the remote senor signal lines, and current limiting resistors that protect critical components. The second mitigating factor is found at the vehicle level and involves the location and routing of the wires leading from the crash sensors to the SRS ECU.  If the wires are well protected in a crash and are not routed with other power wires carrying large currents, the risk for an EOS event is significantly reduced or eliminated. These design specific factors combine to produce a spectrum of risk for the vehicles equipped with ACUs using the DS84 ASIC.  Given the many of years of field exposure, it is possible to divide the subject population into two groups; vehicles which have experienced EOS events, and vehicles which have not experienced EOS field events. Four of the six OEMs involved in this investigation have experienced EOS field events on at least one of their models equipped with a DS84 ASIC.  All vehicle models (including the Toyota models identified in the Failure Report Summary of the opening resume for this investigation) with field events have been recalled.  In an abundance of caution, ODI kept this investigation open five years to monitor field performance and did not identify any field events on vehicles not included in existing safety recalls. Given the spectrum of risk identified in this investigation and that all vehicles with a demonstrated unreasonable risk have been recalled, ODI is closing this investigation. ODI is closing this investigation with the following manufacturer safety recalls: 16V-668, 18E-043, 18V-137, 18V-363, and 20V-024.  With the recall actions taken by the subject vehicle and equipment manufacturers, this investigation is closed. The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exists on other model or model year vehicles outside of the recall scopes. The agency reserves the right to take further action if warranted by the circumstances.

DP18004 · Frame Weld Deficiencies

Opened Nov 16, 2018 · Closed Sep 17, 2019

Status: closed (inferred from source dates) · Steering; Structure:frame And Members

In a letter received on October 24, 2018, a citizen petitioned the National Highway Traffic Safety Administration (NHTSA) to initiate a safety defect investigation into frame weld deficiencies on model year (MY) 2018 'JL' Jeep Wrangler vehicles. The petitioner described a broad list of frame weld deficiencies, including porous welds, excessive slag, lack of weld penetration, over penetration of welds, overweld or weld drip, and weld splash. The weld defects are allegedly located at a variety of locations on the frame assembly.On November 16, 2018, the Office of Defects Investigation (ODI) opened a Defect Petition (DP18-004) to evaluate whether to grant or deny the petition. On March 8, 2019, ODI sent an Information Request letter to Fiat Chrysler Automobiles (FCA) requesting information on frame weld related issues on all MY 2018-2019 Jeep Wrangler 'JL' vehicles. Due to a previous steering related recall that was caused by a misaligned weld on the front track bar (NHTSA Recall No. 18V-675), ODI opted to include a request for additional information concerning reports of steering shimmy or wobble, loose steering, and steering lockup in the March request letter. ODI has performed a preliminary analysis on the information obtained from FCA. Based on ODI's review of the applicable materials, NHTSA has decided to grant the petition. While reviewing the applicable materials obtained from the manufacturer, ODI identified various reports and references to frame welded component detachments that were outside of the scope of NHTSA Recall No. 18V-675. Additionally, the information that FCA provided did not adequately address whether frame weld quality deficiencies compromise the structural integrity of vehicles, and therefore may pose an unreasonable risk to motor vehicle safety. Finally, ODI needs to further evaluate the alleged steering-related defects reported through MY 2019 and the alleged defects' relation to weld quality.The petition was granted on September 16, 2019. Preliminary Evaluation PE19-012 has been opened to further assess the scope, frequency, and potential safety-related consequences of alleged weld quality deficiencies and steering related concerns on the MY 2018-2019 'JL' Jeep Wrangler vehicles.The ODI reports cited above can be viewed on NHTSA.gov under the following reference numbers:11234967, 11222390, 11219370, 11217080, 1204905, 11179954, 11171786, 11161243, 11155523, 11153044, 11143617, 11142722, 11142426, 11141336, 11141035, 11140637, 11140344, 11140262, 11140085, 11140057, 11139880, 11139866, 11139557, 11139467, 11139436, 11138974, 11138758, 11138757, 11132030, 11129738, 11129667, 11124312, 11120232, 11119676, 11119650, 11119454, 11119450, 11115658, 11115137, 11113029, 11112515, 11110583, 11109903, 11093172, 11088501, 11076098

Additional source detail variants (2)

Steering

In a letter received on October 24, 2018, a citizen petitioned the National Highway Traffic Safety Administration (NHTSA) to initiate a safety defect investigation into frame weld deficiencies on model year (MY) 2018 'JL' Jeep Wrangler vehicles. The petitioner described a broad list of frame weld deficiencies, including porous welds, excessive slag, lack of weld penetration, over penetration of welds, overweld or weld drip, and weld splash. The weld defects are allegedly located at a variety of locations on the frame assembly.On November 16, 2018, the Office of Defects Investigation (ODI) opened a Defect Petition (DP18-004) to evaluate whether to grant or deny the petition. On March 8, 2019, ODI sent an Information Request letter to Fiat Chrysler Automobiles (FCA) requesting information on frame weld related issues on all MY 2018-2019 Jeep Wrangler 'JL' vehicles. Due to a previous steering related recall that was caused by a misaligned weld on the front track bar (NHTSA Recall No. 18V-675), ODI opted to include a request for additional information concerning reports of steering shimmy or wobble, loose steering, and steering lockup in the March request letter. ODI has performed a preliminary analysis on the information obtained from FCA. Based on ODI's review of the applicable materials, NHTSA has decided to grant the petition. While reviewing the applicable materials obtained from the manufacturer, ODI identified various reports and references to frame welded component detachments that were outside of the scope of NHTSA Recall No. 18V-675. Additionally, the information that FCA provided did not adequately address whether frame weld quality deficiencies compromise the structural integrity of vehicles, and therefore may pose an unreasonable risk to motor vehicle safety. Finally, ODI needs to further evaluate the alleged steering-related defects reported through MY 2019 and the alleged defects' relation to weld quality.The petition was granted on September 16, 2019. Preliminary Evaluation PE19-012 has been opened to further assess the scope, frequency, and potential safety-related consequences of alleged weld quality deficiencies and steering related concerns on the MY 2018-2019 'JL' Jeep Wrangler vehicles.The ODI reports cited above can be viewed on NHTSA.gov under the following reference numbers:11234967, 11222390, 11219370, 11217080, 1204905, 11179954, 11171786, 11161243, 11155523, 11153044, 11143617, 11142722, 11142426, 11141336, 11141035, 11140637, 11140344, 11140262, 11140085, 11140057, 11139880, 11139866, 11139557, 11139467, 11139436, 11138974, 11138758, 11138757, 11132030, 11129738, 11129667, 11124312, 11120232, 11119676, 11119650, 11119454, 11119450, 11115658, 11115137, 11113029, 11112515, 11110583, 11109903, 11093172, 11088501, 11076098

Structure:frame And Members

In a letter received on October 24, 2018, a citizen petitioned the National Highway Traffic Safety Administration (NHTSA) to initiate a safety defect investigation into frame weld deficiencies on model year (MY) 2018 'JL' Jeep Wrangler vehicles. The petitioner described a broad list of frame weld deficiencies, including porous welds, excessive slag, lack of weld penetration, over penetration of welds, overweld or weld drip, and weld splash. The weld defects are allegedly located at a variety of locations on the frame assembly.On November 16, 2018, the Office of Defects Investigation (ODI) opened a Defect Petition (DP18-004) to evaluate whether to grant or deny the petition. On March 8, 2019, ODI sent an Information Request letter to Fiat Chrysler Automobiles (FCA) requesting information on frame weld related issues on all MY 2018-2019 Jeep Wrangler 'JL' vehicles. Due to a previous steering related recall that was caused by a misaligned weld on the front track bar (NHTSA Recall No. 18V-675), ODI opted to include a request for additional information concerning reports of steering shimmy or wobble, loose steering, and steering lockup in the March request letter. ODI has performed a preliminary analysis on the information obtained from FCA. Based on ODI's review of the applicable materials, NHTSA has decided to grant the petition. While reviewing the applicable materials obtained from the manufacturer, ODI identified various reports and references to frame welded component detachments that were outside of the scope of NHTSA Recall No. 18V-675. Additionally, the information that FCA provided did not adequately address whether frame weld quality deficiencies compromise the structural integrity of vehicles, and therefore may pose an unreasonable risk to motor vehicle safety. Finally, ODI needs to further evaluate the alleged steering-related defects reported through MY 2019 and the alleged defects' relation to weld quality.The petition was granted on September 16, 2019. Preliminary Evaluation PE19-012 has been opened to further assess the scope, frequency, and potential safety-related consequences of alleged weld quality deficiencies and steering related concerns on the MY 2018-2019 'JL' Jeep Wrangler vehicles.The ODI reports cited above can be viewed on NHTSA.gov under the following reference numbers:11234967, 11222390, 11219370, 11217080, 1204905, 11179954, 11171786, 11161243, 11155523, 11153044, 11143617, 11142722, 11142426, 11141336, 11141035, 11140637, 11140344, 11140262, 11140085, 11140057, 11139880, 11139866, 11139557, 11139467, 11139436, 11138974, 11138758, 11138757, 11132030, 11129738, 11129667, 11124312, 11120232, 11119676, 11119650, 11119454, 11119450, 11115658, 11115137, 11113029, 11112515, 11110583, 11109903, 11093172, 11088501, 11076098

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