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2017 Jeep Cherokee

Owner reports · Recalls · Investigations

More warning signs than most Cherokee years

Owner complaints for the 2017 Jeep Cherokee are substantially higher than the model-year median of 113.

About this comparison →

When problems were reported

Mileage at the reported incident

834 reports with mileage · 499 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.

  • Power Train. Review the 646 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 342 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine. Review the 258 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

24 crash reports6 fire reports17 injury reports

What owners actually said

1,333 reports
Mileage unknown · Mar 12, 2025
Forward Collision AvoidanceService Brakes

E-brake service light came on and couldn’t release it, so it had to be towed for a second time in 3 days. The first mechanic released it and said I would be able to drive it until I could get it to the dealership for a possible computer issue that he wouldn’t be able to preform. I drove it a total of 9.5 miles after this befor…

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E-brake service light came on and couldn’t release it, so it had to be towed for a second time in 3 days. The first mechanic released it and said I would be able to drive it until I could get it to the dealership for a possible computer issue that he wouldn’t be able to preform. I drove it a total of 9.5 miles after this before it did it again and I had to have it towed. This was very scary to know that the e-brake could just lock up at anytime or anywhere. I could easily get injured or killed if it happened at the wrong time or place. The dealer found that the module was full of water and needed to be replaced. This is my 3rd Jeep in almost 31 years and now I’m not feeling safe with a Jeep anymore. Why hasn’t there been a recall when it’s a big safety issue? I did get warning lights when it happened the 1st time and did have it towed because it wouldn’t disengage no matter what I did. It’s costing me $400+ to replace the module and $400+ to put in a new Multifunctional Switch that the dealers repair shop also states is involved with this issue. Also, it cost me $105 for the 1st tow and $171 for the 2nd and $110 for the 1st mechanic to look at it. Again, I’m a senior citizen and should not feel scared to drive my vehicle nor need to spend $800+ and an additional $386 to resolve an issue that Jeep has known about for years and is just waiting for it to kill someone before they respond!

NHTSA ODI #11647909

Mileage unknown · Mar 10, 2025
Unknown Or Other

Notification of "Service Shifter" light came on. After reading other reviews this is a common problem and not easily diagnosed. Other vehicle owners noted that the car will just stop while in drive and moving! Is this a major safety issue. Others states this is a recall item? Please advise.

NHTSA ODI #11647482

Mileage unknown · Mar 9, 2025
Power Train

Service shifter message comes on can't change gears.

NHTSA ODI #11647206

75,000 miles · Mar 7, 2025
Power Train

The contact owns a 2017 Jeep Cherokee. The contact received notification of NHTSA Campaign Number: 25V011000 (Power Train); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the…

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The contact owns a 2017 Jeep Cherokee. The contact received notification of NHTSA Campaign Number: 25V011000 (Power Train); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact stated that while driving at approximately 40 MPH the vehicle was losing motive power. The contact depressed the accelerator pedal; however, the vehicle was losing motive power. The contact pulled over and turned off the vehicle, but the vehicle failed to move while shifting to drive(D). The contact had the vehicle towed to an independent mechanic. The vehicle was diagnosed, and it was determined that a snap ring had failed and caused the transmission to fail. The vehicle was not repaired. The failure mileage was approximately 75,000. VIN tool confirms parts not available.

NHTSA ODI #11646930

Mileage unknown · Mar 5, 2025
Electrical SystemUnknown Or Other

There are 3 things: sometimes when I go to start my jeep, it will start and cut off. Secondly: my rear back up camera keeps going in and out. I’ve had it replaced and it still goes out. Especially if it rains. Lastly, my “service shifter” light pops up randomly while I am driving and all of the lights on the gear shift will li…

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There are 3 things: sometimes when I go to start my jeep, it will start and cut off. Secondly: my rear back up camera keeps going in and out. I’ve had it replaced and it still goes out. Especially if it rains. Lastly, my “service shifter” light pops up randomly while I am driving and all of the lights on the gear shift will light up. It will not let me upload my videos of the screen

NHTSA ODI #11646412

Mileage unknown · Mar 5, 2025
EngineFuel/propulsion SystemUnknown Or Other

4wd light has been on along with engine light. Took it to a mechanic but and a problem with cylinder 2 came up and they checked it and everything was fine. t'll sometimes slightly roll in park before perking to a stop. While driving it'll sputter sometimes.

NHTSA ODI #11646405

Mileage unknown · Mar 3, 2025
Unknown Or Other

My JEEP vehicle currently has a safety recall. My car has been in the shop for two months with no update with the recall. My vehicle currently is in the shop and is not drivable due to the PTU failure. I am currently waiting for the recall remedy. I need my vehicle for work and it is very upsetting having to wait months for repa…

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My JEEP vehicle currently has a safety recall. My car has been in the shop for two months with no update with the recall. My vehicle currently is in the shop and is not drivable due to the PTU failure. I am currently waiting for the recall remedy. I need my vehicle for work and it is very upsetting having to wait months for repairs.

NHTSA ODI #11646039

Mileage unknown · Feb 26, 2025
Unknown Or Other

The "Service 4WD" light came on. Upon inspection, the dealership found a problem with the power transfer unit, which lines up with the recall. I have been informed by the dealership that the replacement part may not be in until May of 2025 due to a backorder.

NHTSA ODI #11645147

Mileage unknown · Feb 24, 2025
Electrical System

The contact owns a 2017 Jeep Cherokee. The contact stated while stopped at a stop sign or at a traffic light, the vehicle stalled. The failure had occurred on several occasions. No warning light was illuminated. The vehicle was taken to a dealer where it was diagnosed that the main electrical fuse needed to be replaced. The vehi…

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The contact owns a 2017 Jeep Cherokee. The contact stated while stopped at a stop sign or at a traffic light, the vehicle stalled. The failure had occurred on several occasions. No warning light was illuminated. The vehicle was taken to a dealer where it was diagnosed that the main electrical fuse needed to be replaced. The vehicle was repaired; however, the failure persisted. The vehicle was taken back to the dealer where it was diagnosed that the main electrical fuse needed to be replaced. The vehicle was repaired; however, the failure persisted. The vehicle was taken back to the dealer again and it was determined that the main electrical fuse needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was unknown.

NHTSA ODI #11644499

Mileage unknown · Feb 24, 2025
Electrical SystemUnknown Or OtherVehicle Speed Control

SERVICE SHIFTER WARNING LIGHT

NHTSA ODI #11644442

Official recalls

6

25V011000 · Power Train

Apr 29, 2025

Chrysler (FCA US, LLC) is recalling certain 2017-2019 Jeep Cherokee vehicles. The power transfer unit (PTU) may become damaged and disengage the transmission and differential, resulting in a loss of drive power and/or loss of park function.

Consequence & remedy

Consequence: A loss of drive power can increase the risk of a crash. A loss of park function can cause an unintended vehicle rollaway, which can increase the risk of a crash or injury.

Remedy: Dealers will update the drivetrain control module and PTU software and replace the PTU, as necessary free of charge. Owner notification letters were mailed beginning February 19, 2026. Owners may contact FCA customer service at 1-800-853-1403. FCA's number for this recall is 01C.

23V302000 · Power Train:automatic Transmission

Apr 27, 2023

Chrysler (FCA US, LLC) is recalling certain 2016-2017 Jeep Cherokee vehicles. The power transfer unit (PTU) may become damaged and disengage the transmission and differential, resulting in a loss of drive power or loss of park function.

Consequence & remedy

Consequence: A loss of drive power can increase the risk of a crash. A loss of park function can cause an unintended vehicle rollaway which can increase the risk of a crash or injury.

Remedy: FCA US LLC will notify owners, and dealers will perform a software update, free of charge. Owner notification letters were mailed May 11, 2023. Owners may contact FCA USA LLC customer service at 1-800-853-1403. FCA's number for this recall is 45A. This recall expands previous recall number 20V-343.

20V343000 · Power Train:automatic Transmission; Power Train:driveline:differential Unit

Jun 11, 2020

Chrysler (FCA US LLC) is recalling certain 2014-2017 Jeep Cherokee vehicles equipped with a two-speed Power Transfer Unit (PTU). Relative movement in the Power Transfer Unit (PTU) between the differential input splines and the transmission output shaft may cause some input spline teeth to wear off, which may eventually cause a loss of engagement between the transmission and the differential inside the PTU. If this occurs, power cannot be transferred between the front wheels and the transmission which results in a loss of drive while the vehicle is in motion and a loss of the Park function while stationary.

Consequence & remedy

Consequence: A loss of drive can cause a vehicle crash without prior warning. A loss of the Park function can cause unintended vehicle rollaway which can increase the risk of a crash or injury.

Remedy: FCA US LLC will notify owners, and dealers will perform a software update that will maintain vehicle propulsion by engaging rear wheel drive and prevent rolling in Park by activating the electronic parking brake if a failed input spline occurs. This recall began July 14, 2020. Owners may contact FCA USA LLC customer service at 1-800-853-1403. FCA's number for this recall is W47.

Additional source detail variants (2)

Power Train:driveline:differential Unit

Chrysler (FCA US LLC) is recalling certain 2014-2017 Jeep Cherokee vehicles equipped with a two-speed Power Transfer Unit (PTU). Relative movement in the Power Transfer Unit (PTU) between the differential input splines and the transmission output shaft may cause some input spline teeth to wear off, which may eventually cause a loss of engagement between the transmission and the differential inside the PTU. If this occurs, power cannot be transferred between the front wheels and the transmission which results in a loss of drive while the vehicle is in motion and a loss of the Park function while stationary.

Consequence: A loss of drive can cause a vehicle crash without prior warning. A loss of the Park function can cause unintended vehicle rollaway which can increase the risk of a crash or injury.

Remedy: FCA US LLC will notify owners, and dealers will perform a software update that will maintain vehicle propulsion by engaging rear wheel drive and prevent rolling in Park by activating the electronic parking brake if a failed input spline occurs. This recall began July 14, 2020. Owners may contact FCA USA LLC customer service at 1-800-853-1403. FCA's number for this recall is W47.

Power Train:automatic Transmission

Chrysler (FCA US LLC) is recalling certain 2014-2017 Jeep Cherokee vehicles equipped with a two-speed Power Transfer Unit (PTU). Relative movement in the Power Transfer Unit (PTU) between the differential input splines and the transmission output shaft may cause some input spline teeth to wear off, which may eventually cause a loss of engagement between the transmission and the differential inside the PTU. If this occurs, power cannot be transferred between the front wheels and the transmission which results in a loss of drive while the vehicle is in motion and a loss of the Park function while stationary.

Consequence: A loss of drive can cause a vehicle crash without prior warning. A loss of the Park function can cause unintended vehicle rollaway which can increase the risk of a crash or injury.

Remedy: FCA US LLC will notify owners, and dealers will perform a software update that will maintain vehicle propulsion by engaging rear wheel drive and prevent rolling in Park by activating the electronic parking brake if a failed input spline occurs. This recall began July 14, 2020. Owners may contact FCA USA LLC customer service at 1-800-853-1403. FCA's number for this recall is W47.

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.

17V543000 · Equipment:other:labels; Wheels:rim

Aug 31, 2017

Chrysler (FCA US LLC) is recalling certain 2017-2018 Jeep Cherokee vehicles. The tire and rim size information required to be on the Certification label was omitted during manufacturing, which may result in an incorrect tire and rim combination being installed on the vehicle. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 110, "Tire Selection and Rims."

Consequence & remedy

Consequence: The missing tire and rim designation information may lead to an incorrect combination being installed on the vehicle, increasing the risk of a crash.

Remedy: Chrysler will notify owners and will provide a corrected certification label, free of charge. The recall began October 13, 2017. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is T53.

Additional source detail variants (2)

Equipment:other:labels

Chrysler (FCA US LLC) is recalling certain 2017-2018 Jeep Cherokee vehicles. The tire and rim size information required to be on the Certification label was omitted during manufacturing, which may result in an incorrect tire and rim combination being installed on the vehicle. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 110, "Tire Selection and Rims."

Consequence: The missing tire and rim designation information may lead to an incorrect combination being installed on the vehicle, increasing the risk of a crash.

Remedy: Chrysler will notify owners and will provide a corrected certification label, free of charge. The recall began October 13, 2017. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is T53.

Wheels:rim

Chrysler (FCA US LLC) is recalling certain 2017-2018 Jeep Cherokee vehicles. The tire and rim size information required to be on the Certification label was omitted during manufacturing, which may result in an incorrect tire and rim combination being installed on the vehicle. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 110, "Tire Selection and Rims."

Consequence: The missing tire and rim designation information may lead to an incorrect combination being installed on the vehicle, increasing the risk of a crash.

Remedy: Chrysler will notify owners and will provide a corrected certification label, free of charge. The recall began October 13, 2017. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is T53.

16V799000 · Air Bags:knee Bolster

Nov 2, 2016

Chrysler (FCA US LLC) is recalling certain model year 2017 Jeep Cherokee vehicles manufactured October 13, 2016, to October 17, 2016. Improper welds on the driver's knee air bag inflator may prevent the air bag from properly inflating.

Consequence & remedy

Consequence: If the driver's knee air bag does not properly inflate, there is an increased risk of injury in the event of a crash.

Remedy: Chrysler will notify owners, and dealers will replace the driver's knee air bag module, free of charge. The recall began November 9, 2016. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is S84.

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

1

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.