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2016 Jeep Wrangler

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2016 Jeep Wrangler do not stand out strongly from the model-year median of 265.

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When problems were reported

Mileage at the reported incident

238 reports with mileage · 222 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.

  • Service Brakes. Review the 119 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine. Review the 88 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Air Bags. Review the 77 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

28 crash reports15 fire reports28 injury reports

Engine complaints

88 reports
Clear category filter
71,000 miles · May 6, 2022
EngineCrash

The contact owns a 2016 Jeep Wrangler. The contact stated that upon the approach of a stop sign with his foot on the brake pedal, the engine had begun to rev without warning. With the brake pedal depressed to the floorboard, the vehicle continued to lurch forward as the contact clipped the vehicle in front of him. As the engine …

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The contact owns a 2016 Jeep Wrangler. The contact stated that upon the approach of a stop sign with his foot on the brake pedal, the engine had begun to rev without warning. With the brake pedal depressed to the floorboard, the vehicle continued to lurch forward as the contact clipped the vehicle in front of him. As the engine continued to rev, the contact immediately shut off the ignition. A police report was not filed and no injuries were reported. Both the contact and the other driver were able to drive away from the scene. The dealer was notified and an appointment was made for a diagnostic. The contact called the manufacturer and was informed that he would receive a callback, the contact had yet to hear back from the manufacturer. The vehicle had yet to be repaired. The failure mileage was approximately 71,000.

NHTSA ODI #11463630

Mileage unknown · Jan 21, 2022
Engine

The oil cooler housing exploded in my 2016 Jeep Wrangler. I put my car into reverse- I backed up and tried to put the car into drive. The car would not shift out of neutral for several minutes- 2 quarts of oil spilled onto the ground. My car eventually made its way to drive and has been steadily leaking oil since.

NHTSA ODI #11448383

Mileage unknown · Nov 18, 2021
Engine

I have a Jeep Wrangler Unlimited Rubicon 2016 that suddenly lost power in fast moving traffic with intermittent miss fire and blinking check engine light along with smoke and smell of burning oil. Looking into the engine from the top a large , deep pool of oil was sitting in the middle of the engine and working its way on to hot…

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I have a Jeep Wrangler Unlimited Rubicon 2016 that suddenly lost power in fast moving traffic with intermittent miss fire and blinking check engine light along with smoke and smell of burning oil. Looking into the engine from the top a large , deep pool of oil was sitting in the middle of the engine and working its way on to hot components of engine and exhausts and smoking. This could have easily become fire hazard in high temperature desert environment where running temperatures and hot exhaust pipes could start a fire. The engine miss fire and sudden loss of power was checked to be failing ignition coils and plugs that are supposed to be warrantied to 100K miles. The Pentastar V6 3.6 oil cooler was leaking badly and its effect could have been disasterous for the engine and car safety. The Oil Cooler faulty plastic design on this engine is a well known problem that Chrysler is refusing to address as recall on Wranglers sold . There are hundreds of complaints and cases of failure of this plastic component on the internet and the dealers are all well aware of it and happy to charge $2k for replacement. Chrysler and the dealer refused to admit the faulty oil cooler design and also would not accept ignition coil and spark plug replacement under the Std 80,000 miles California Emission Control warranty that come with all engines sold in CA. Chrysler is hiding this faulty design on Wranglers but accepted it on other Chrysler cars.

NHTSA ODI #11440937

Mileage unknown · Nov 2, 2021
Engine

2016 JEEP WRANGLER UNLIMITED SPORT. Vehicle has 41,500 miles. 3.6 Liter Pentastar V6. Gushing oil from oil cooler on to the exhaust and smoking to the point of catching fire. Known issue from what I am reading online. I guess Chrysler is waiting for one of us Jeep owners to die in a car fire!! $1200 to replace.....UNACCEPTABLE t…

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2016 JEEP WRANGLER UNLIMITED SPORT. Vehicle has 41,500 miles. 3.6 Liter Pentastar V6. Gushing oil from oil cooler on to the exhaust and smoking to the point of catching fire. Known issue from what I am reading online. I guess Chrysler is waiting for one of us Jeep owners to die in a car fire!! $1200 to replace.....UNACCEPTABLE that a recall has not been forced on Chrysler!!!!

NHTSA ODI #11439011

Mileage unknown · Aug 4, 2021
Engine

Oil filter housing/Oil cooler cracked. Dealership says its a common problem on 2014+ jeeps with 3.6 liter engine yet Jeep hasn't issued a recall. Dealer stated that this seems to happen around 50,000 miles on vehicle. No warning lights came on, noticed smoke coming from under hood when driving from oil falling onto exhaust. W…

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Oil filter housing/Oil cooler cracked. Dealership says its a common problem on 2014+ jeeps with 3.6 liter engine yet Jeep hasn't issued a recall. Dealer stated that this seems to happen around 50,000 miles on vehicle. No warning lights came on, noticed smoke coming from under hood when driving from oil falling onto exhaust. When pulled over large amount of oil was coming out from underside of Jeep. This happened with 43k miles on the vehicle which is right around where the dealer said they were seeing a large amount of failures for this part.

NHTSA ODI #11427730

77,000 miles · May 15, 2021
EngineService BrakesVehicle Speed Control

ON THURSDSY 5/13/2021 AT APPROXIMATELY 5:15-5:20PM, I WAS DROPPING MY DAUGHTER OFF TO WORK AND I GOT BACK ON THE ROAD THEN THROUGH THE U-TURN TO GET BACK ON THE OTHER SIDE. I PROCEEDED TO ENTER THE ROADWAY INITIALLY ABOUT 10MPH AND ALL OF A SUDDEN, THE JEEP ACCELERATED TO ALMOST 80 MPH AND I SMASHED THE BRAKED AND IT WOULD NOT S…

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ON THURSDSY 5/13/2021 AT APPROXIMATELY 5:15-5:20PM, I WAS DROPPING MY DAUGHTER OFF TO WORK AND I GOT BACK ON THE ROAD THEN THROUGH THE U-TURN TO GET BACK ON THE OTHER SIDE. I PROCEEDED TO ENTER THE ROADWAY INITIALLY ABOUT 10MPH AND ALL OF A SUDDEN, THE JEEP ACCELERATED TO ALMOST 80 MPH AND I SMASHED THE BRAKED AND IT WOULD NOT STOP AT ALL. THE RPM'S WERE STEADY GOING UP. I PULLED UP THE EMERGENCY BRAKE RIGHT BEFORE I ALMOST REAR ENDED THE CAR IN FRONT OF ME AT THE LIGHT GETTING READY 6O GO THROUGH THE INTERSECTION. I WAS ON THE BRAKE AT THE SAME TIME. ONCE THE CAR FINALLY CAME TO A STOP, THE ENGINE WAS STILL REVED UP. I PUT IN PARK AND TURNED THE VEHICLE OFF WITH THE IGNITION. I THEN RESTARTED AND WAS SCARED THE REST OF THE WAY HOME. THE VEHICLE WAS IN MOTION WHEN THIS HAPPENED. THERE WAS NOTHING UNDER THE BRAKE. MY FLOOR MATS WERE FLUSH AND FLAT AND THE ACCELERATION WAS SO SCARY. I FEARED FOR MY LIFE. I HAVE NOT DRIVEN IT SINCE. I CALLED THE DEALERSHIP AND THEY TOLD ME TO BRING IT IN THE NEXT MORNING, FRIDAY THE 14TH AT 10 AM BUT THAT THEU WOULD NOT BE ABLE TO LOOK AT IT UNTIL 7-10 DAYS. I DID NOT BRING IT AS THIS WAS UNACCEPTABLE. I WILL CALL BACK AND SPEAK WITH SOMEONE ELSE FOR RESULTS. THE TECH EVEN TOLD ME THAT THIS HAPPENED TO HIS BROTHER THAT ALSO HAVE A JEEP. THERE ISN'T A RECALL FOR THIS THAT I'VE FOUND. SOMEONE WILL LOSE THEIR LIFE BECAUSE OF THIS MALFUNCTION. THIS IS A VERY SERIOUS SAFETY HAZARD.

NHTSA ODI #11416735

72,547 miles · May 6, 2021
EnginePower Train

ENGINE OIL COOLER ASSEMBLY LEAKING AT BACK OF ENGINE. OIL LEAKING DOWN BACK OF ENGINE AND BELL HOUSING CREATING A POSSIBLE FIRE. VERY HOT SMELL AND SMOKING FROM ENGINE BAY

NHTSA ODI #11415477

70,104 miles · Apr 29, 2021
Engine

THE OIL FILTER CANISTER/OIL COOLER IS CRACKED AND IS LEAKING OIL. THIS IS AN ENVIRONMENTAL HAZARD. WE HAVE TAKEN IT TO OUR MECHANIC AND SPOKE WITH THE DEALERSHIP THAT IT WAS BOUGHT FROM AND HAVE BEEN TOLD BY MANY OTHER PART HOUSES THAT THIS REPLACEMENT PART IS ON A 50,000 + PARTS BACK ORDER AND THAT IT CAN TAKE ANYWHERE FROM 20-…

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THE OIL FILTER CANISTER/OIL COOLER IS CRACKED AND IS LEAKING OIL. THIS IS AN ENVIRONMENTAL HAZARD. WE HAVE TAKEN IT TO OUR MECHANIC AND SPOKE WITH THE DEALERSHIP THAT IT WAS BOUGHT FROM AND HAVE BEEN TOLD BY MANY OTHER PART HOUSES THAT THIS REPLACEMENT PART IS ON A 50,000 + PARTS BACK ORDER AND THAT IT CAN TAKE ANYWHERE FROM 20-60 DAYS TO GET THE PART IN TO REPLACE IT. THE VEHICLE WAS STATIONARY WHEN WE NOTICED THE LEAK AND NEVER DRIVEN AGAIN AFTER THAT. THIS TELLS ME THAT THIS IS A HUGE ISSUE AND THAT THERE SHOULD BE A RECALL ON THIS ISSUE. I UNDERSTAND THE MANUFACTURING SIDE OF THINGS BUT THAT IS A LARGE NUMBER FOR THE BACK ORDER.

NHTSA ODI #11414514

71,000 miles · Mar 22, 2021
Engine

TL* THE CONTACT OWNS A 2016 JEEP WRANGLER. THE CONTACT STATED WHILE DRIVING VEHICLE STALLED HAS STALLED AT 30MPH AND AT 65 MPH WITH THE CHECK ENGINE WARNING LIGHT ILLUMINATED. THIS HAS HAPPENED RANDOMLY AT LEAST FIVE TIMES IN THE PAST THREE MONTHS. THE VEHICLE WAS RESTARTED AND DROVE AS DESIGNED. THE VEHICLE WAS TAKEN TWICE TO …

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TL* THE CONTACT OWNS A 2016 JEEP WRANGLER. THE CONTACT STATED WHILE DRIVING VEHICLE STALLED HAS STALLED AT 30MPH AND AT 65 MPH WITH THE CHECK ENGINE WARNING LIGHT ILLUMINATED. THIS HAS HAPPENED RANDOMLY AT LEAST FIVE TIMES IN THE PAST THREE MONTHS. THE VEHICLE WAS RESTARTED AND DROVE AS DESIGNED. THE VEHICLE WAS TAKEN TWICE TO GOOD BROTHERS DODGE RAM (577 COLUMBIAN ST, SOUTH WEYMOUTH, MA 02190, (781) 331-8300) HOWEVER, THE MECHANIC WAS UNABLE TO DUPLICATE THE FAILURE. THE VEHICLE WAS NOT DIAGNOSED NOR REPAIRED. THE CONTACT CALLED QUIRK CHRYSLER JEEP (441 QUINCY AVE, BRAINTREE, MA 02184, (781) 917-1400) HOWEVER, THE VEHICLE WAS NOT DIAGNOSED NOR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 71,000. *DT*JB

NHTSA ODI #11404275

45,000 miles · Mar 4, 2021
EnginePower Train

MY VEHICLE HASN'T BEEN DRIVEN MUCH, I WORK FROM HOME, I NOTICED A POOL OF OIL UNDER IT, TOOK TO DEALERSHIP AND HE OIL COOLER IS LEAKING.

NHTSA ODI #11399061

Official recalls

5

24V196000 · Air Bags:frontal:driver Clockspring/spiral Cassette

Mar 14, 2024

Chrysler (FCA US, LLC) (Stellantis) is recalling certain right hand drive 2016 Jeep Wrangler vehicles. Debris contamination may cause the clockspring to fail, preventing the driver's air bag from deploying in a crash.

Consequence & remedy

Consequence: An air bag that does not deploy in a crash can increase the risk of injury.

Remedy: Dealers will replace the clockspring, steering wheel back cover, and steering column shrouds, free of charge. Owner notification letters were mailed April 4, 2024. Owners may contact FCA US, LLC customer service at 1-800-853-1403. FCA US, LLC's number for this recall is 27B.

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.

19V018000 · Air Bags:frontal:passenger Side:inflator Module

Jan 15, 2019

Chrysler (FCA US LLC) is recalling certain 2010 Dodge Ram 3500, Ram 4500/5500, 2010-2011 Dodge Dakota, 2010-2014 Dodge Challenger, 2010-2015 Dodge Challenger, Chrysler 300, and 2010-2016 Jeep Wrangler vehicles. Upon deployment of the driver's frontal air bag, excessive internal pressure may cause the inflator to explode.

Consequence & remedy

Consequence: In the event of a crash necessitating deployment of the passenger's frontal air bag, the inflator could explode with metal fragments striking the vehicle occupants potentially resulting in serious injury or death.

Remedy: Owners are advised not to drive their vehicle until the recall repair is complete. Chrysler will notify owners, and dealers will replace the passenger frontal air bag inflator, free of charge. The recall began February 4, 2019. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is V01.

16V734000 · Air Bags:frontal:sensor/control MODULE-INACTIVE

Oct 13, 2016

Chrysler (FCA US LLC) is recalling certain model year 2016-2017 Jeep Wrangler vehicles manufactured June 16, 2015, to August 14, 2016. In certain crash conditions, the front impact sensor wiring may be pulled until it detaches before a signal can be received by the Occupant Restraint Controller (ORC).

Consequence & remedy

Consequence: If the ORC module does not receive a signal from the front impact sensor, both frontal air bags and the seat belt pretensioners will not deploy in the event of a crash, increasing the risk of injury.

Remedy: Chrysler will notify owners, and dealers will reroute the front impact sensor wiring and relocate the impact sensor branch, free of charge. The recall began on November 10, 2016. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is S76.

16V288000 · Air Bags:frontal:driver Side:inflator Module

May 11, 2016

Chrysler (FCA US LLC) is recalling certain model year 2011-2016 Right Hand Drive Jeep Wrangler vehicles manufactured February 16, 2010, to May 2, 2016. The clockspring assembly may become contaminated with dust and cause the air bag circuit to fail.

Consequence & remedy

Consequence: Failure of the air bag circuit may prevent the driver's frontal air bag from deploying in the event of a crash, increasing the risk of injury.

Remedy: Chrysler will notify owners, and dealers will replace the clockspring, wheel back cover, and column shroud, free of charge. The recall began on August 11, 2016. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is S40.

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

3

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.

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.

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