NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
683 reportsMileage unknown · Sep 3, 2026
Power TrainUnknown Or Other
My 2018 Jeep Cherokee Trailhawk is subject to FCA Recall 01C/NHTSA 25V-011 for two-speed PTU failure. I have experienced 3 serious drivetrain events requiring towing. In April 2024, before the recall was announced, the vehicle suddenly lost acceleration while entering an interstate/on-ramp, with loud grinding/revving and jerkin…
Read full complaint
My 2018 Jeep Cherokee Trailhawk is subject to FCA Recall 01C/NHTSA 25V-011 for two-speed PTU failure. I have experienced 3 serious drivetrain events requiring towing. In April 2024, before the recall was announced, the vehicle suddenly lost acceleration while entering an interstate/on-ramp, with loud grinding/revving and jerking. An independent repair facility replaced the transmission. On May 18, 2026, another drivetrain failure occurred. An authorized Jeep dealer confirmed PTU failure and performed Recall 01C. Dealer records state the PTU had “MAJOR INTERNAL DAMAGE” and document damage at the PTU/transmission interface, including a transmission-side stub shaft and damage/scored gears attributed to the old PTU gear. The vehicle remained at the dealer until approximately August 7. About 2 weeks later, the Service 4WD warning appeared, followed by loud drivetrain noise, jerking and severe loss of propulsion. The vehicle also rolled backward while in PARK unless the parking brake was applied and required another tow. The dealer diagnosed a failed left-front CV axle/halfshaft and attributes it to progressive wear, unrelated to the PTU repair. I am not claiming the PTU caused the axle failure; I am asking NHTSA to evaluate the timing and repeated loss-of-propulsion/PARK events. Additionally, the dealer performed a multipoint inspection about one week before the axle failure that marked the CV drive axle category as passing. As of Sept. 2, 2026, BOTH NHTSA and FCA/Mopar systems still listed Recall 01C as incomplete/unrepaired despite the dealer having performed the recall repair. I request review of these repeated safety failures, the recall remedy, and the continued incomplete recall status.
NHTSA ODI #11761982
Mileage unknown · Aug 26, 2026
Power Train
Noticed that while going slow and turning heard popping from the rear end. Had 3 different certified shops give me different answers to the cause. Had to attempt to find my wife a way to work. As stated previous We started at Becks for estimate and diagnosis. Then Daver Taylor transmission. Then I called Jeep Customer Care. Also…
Read full complaint
Noticed that while going slow and turning heard popping from the rear end. Had 3 different certified shops give me different answers to the cause. Had to attempt to find my wife a way to work. As stated previous We started at Becks for estimate and diagnosis. Then Daver Taylor transmission. Then I called Jeep Customer Care. Also dropped off our Jeep at Dealership. The day we picked it up from Dave Taylor and went to the dealership the SVC4x4 light came on. We not have it all together again. However we retained every parts that they said was faulty and replaced. Started our own research. Found it odd that our jeep had the same mechanical issues as stated in the previous campaigns. NHTSA 20V343 / FCA W47 and NHTSA 23V302 / FCA 45A, NHTSA Campaign Number 26V290. To this day no one has ever given a clear definition of what the root cause was.
NHTSA ODI #11759616
Mileage unknown · Aug 13, 2026
Electrical System
I have a 2018 Jeep Cherokee. The exact component causing the problem is UNKNOWN. While driving, a “Service Shifter” warning appeared on the dashboard and all of the gear indicator lights illuminated at the same time. After I turned the vehicle off and restarted it, the warning disappeared. On a separate occasion, a “4WD Service …
Read full complaint
I have a 2018 Jeep Cherokee. The exact component causing the problem is UNKNOWN. While driving, a “Service Shifter” warning appeared on the dashboard and all of the gear indicator lights illuminated at the same time. After I turned the vehicle off and restarted it, the warning disappeared. On a separate occasion, a “4WD Service Unavailable” message appeared along with the SVC 4WD warning light. That warning also later disappeared. I am concerned about my safety because these warnings involve the vehicle’s shifter and four-wheel-drive system, and I do not know whether either system could malfunction while I am driving. The vehicle has not been inspected or diagnosed by a Jeep dealer or independent repair facility for this problem yet. I took the vehicle to Advance Auto Parts, where they connected a diagnostic scanner, but no codes were found with their scanner. The warnings have been intermittent and have disappeared after restarting the vehicle. There were no other symptoms that I noticed before the warnings appeared. The exact cause of the Service Shifter and SVC 4WD warnings is UNKNOWN.
NHTSA ODI #11756845
117,270 miles · Jul 24, 2026
Power Train
The contact owns a 2018 Jeep Cherokee. The contact stated that while driving at an undisclosed speed, several unknown warning lights were illuminated on the instrument panel, and the transmission was shifting very roughly. The vehicle was taken to a dealer, where the battery was replaced several times out of pocket; however, the…
Read full complaint
The contact owns a 2018 Jeep Cherokee. The contact stated that while driving at an undisclosed speed, several unknown warning lights were illuminated on the instrument panel, and the transmission was shifting very roughly. The vehicle was taken to a dealer, where the battery was replaced several times out of pocket; however, the failure persisted. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 117,270.
NHTSA ODI #11752716
102,000 miles · Jul 9, 2026
Service Brakes, HydraulicStructure
The contact owns a 2018 Jeep Cherokee. The contact stated that while driving at 25–30 MPH on the highway, the brakes locked up, and the vehicle failed to move. The "Service Brakes" message illuminated on the instrument panel after the failure. The contact related the failure to NHTSA Campaign Number: 18V523000 (Service Brakes, H…
Read full complaint
The contact owns a 2018 Jeep Cherokee. The contact stated that while driving at 25–30 MPH on the highway, the brakes locked up, and the vehicle failed to move. The "Service Brakes" message illuminated on the instrument panel after the failure. The contact related the failure to NHTSA Campaign Number: 18V523000 (Service Brakes, Hydraulic). The vehicle was towed to the local dealer, where it was diagnosed that the electronic brake module had failed due to water intrusion and corrosion. The vehicle was not repaired. The manufacturer was not contacted. The failure mileage was approximately 102,000.
NHTSA ODI #11749251
143,790 miles · Jun 24, 2026
Wheels
The contact owns a 2018 Jeep Cherokee. The contact stated that while driving at an undisclosed speed, the rear end of the vehicle was shaking abnormally, and the rear end of the vehicle was uncontrollable. The vehicle was taken to an independent mechanic, where it was diagnosed with two fractured bolts on the rear passenger’s si…
Read full complaint
The contact owns a 2018 Jeep Cherokee. The contact stated that while driving at an undisclosed speed, the rear end of the vehicle was shaking abnormally, and the rear end of the vehicle was uncontrollable. The vehicle was taken to an independent mechanic, where it was diagnosed with two fractured bolts on the rear passenger’s side wheel. The contact was informed that the two bolts needed to be replaced. The vehicle was not repaired. The vehicle was taken to another independent mechanic where it was confirmed that the two bolts were fractured on the rear passenger's side wheel. The contact was informed that the two bolts needed to be replaced. The vehicle was repaired. The contact was informed that the two fractured bolts were severely damaged and had been damaged for a while. The contact stated that the dealer had performed an alignment on the vehicle the day before the failure occurred. The contact stated that the dealer failed to inform the contact of the issue. The dealer was made aware of the failure. The manufacturer was not made aware of the failure. The failure mileage was approximately 143,790.
NHTSA ODI #11746163
110,000 miles · May 29, 2026
Power Train
The contact owns a 2018 Jeep Cherokee. The contact received notification of NHTSA Campaign Number: 25V011000 (Power Train), and the part was listed as available at the time. The vehicle was taken to a dealer where it was diagnosed to have the PTU/full transmission failure as listed in the recall notice; however, the vehicle was …
Read full complaint
The contact owns a 2018 Jeep Cherokee. The contact received notification of NHTSA Campaign Number: 25V011000 (Power Train), and the part was listed as available at the time. The vehicle was taken to a dealer where it was diagnosed to have the PTU/full transmission failure as listed in the recall notice; however, the vehicle was not repaired due to the dealer not being able to remedy the part. The part was ordered. The contact stated while driving the vehicle at an undisclosed speed on the highway, she attempted to accelerate but no power was given. She pulled off to the side, and authorities were called for traffic control. The vehicle was unable to move. When engaging into drive, the vehicle sounded like it was coming apart. The contact stated the vehicle was not able to engage its own brake. When the vehicle was towed, there was no evidence that the wheels were locked up. Shortly after that, the vehicle's PTU became fully inoperable, causing the vehicle to not be able to be placed in park or any other driver setting. The vehicle was towed to the dealer a second time. The tow company parked the vehicle at the dealer on a hill. With a failed transmission, this caused the vehicle's E-brake to disengage, causing it to roll off the hill and stopped rolling shortly after once on flat ground. The dealer declined to perform the recall repair and prompted the contact to fix the E-brake on her own, although the failure portrayed to the recall notice. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 110,000.
NHTSA ODI #11740894
118,000 miles · May 29, 2026
EnginePower Train
The contact owns a 2018 Jeep Cherokee. The contact stated that while driving at 35 MPH, the vehicle shut off as several warning lights appeared on the instrument panel. The contact made multiple attempts to restart the vehicle but to no avail. The police arrived at the scene and helped to place the vehicle into neutral(N) and mo…
Read full complaint
The contact owns a 2018 Jeep Cherokee. The contact stated that while driving at 35 MPH, the vehicle shut off as several warning lights appeared on the instrument panel. The contact made multiple attempts to restart the vehicle but to no avail. The police arrived at the scene and helped to place the vehicle into neutral(N) and moved the vehicle off to the side of the road. Due to the failure, the vehicle was initially towed to the contact's home and was then towed to a dealer. The dealer diagnosed the vehicle with a failed alternator and PTU(Power Transfer Unit). The vehicle was towed back to the contact's home due to the cost of the repair. The contact called an independent mechanic who managed to replace the alternator. Although the contact managed to drive the vehicle once the alternator was replaced; the contact stated that the same warning lights including the 4WD warning message remained on the instrument panel. Upon investigation, the contact discovered NHTSA Campaign Number: 25V011000(Power Train); however, the VIN was not included in the recall. The manufacturer had yet to be notified of the failure. The vehicle had yet to be fully repaired. The failure mileage was approximately 118,000.
NHTSA ODI #11740839
99,000 miles · May 28, 2026
Power Train
The contact owns a 2018 Jeep Cherokee. The contact stated that upon starting the vehicle, all of the warning indicators on the instrument cluster panel illuminated. Additionally, the contact noted that the parking brake occasionally felt as though it had not engaged, and while driving, the parking brake would disengage on its ow…
Read full complaint
The contact owns a 2018 Jeep Cherokee. The contact stated that upon starting the vehicle, all of the warning indicators on the instrument cluster panel illuminated. Additionally, the contact noted that the parking brake occasionally felt as though it had not engaged, and while driving, the parking brake would disengage on its own. The contact also stated that the vehicle hesitated during acceleration and failed to shift smoothly into the next gear. The contact referenced NHTSA ID Number: 25V011000 (Power Train) to be the cause of the issue however, the VIN was not included in the recall repair. The dealer was not notified of the failure. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 99,000.
NHTSA ODI #11740690
Mileage unknown · May 27, 2026
Power Train
PTU failed. Service 4 WD Light is on. Jeep has a recall but my VIN isn't included. It is going to cost over $3000 to get it fixed.
NHTSA ODI #11740422
Official recalls
7Apr 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.
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.
Jul 26, 2018
Chrysler (FCA US LLC) is recalling certain 2018 Jeep Cherokee all-wheel-drive vehicles. The bearing cage for the right front halfshaft assembly may not have been properly heat treated, possibly resulting in the bearing cage breaking and a potential halfshaft assembly failure.
Consequence & remedy
Consequence: If the halfshaft bearing cage breaks, the halfshaft may not be able to transmit engine power, causing a loss of drive or it can allow the vehicle to move while in the "Park" position. Either condition may increase the risk of a crash.
Remedy: Chrysler will notify owners, and dealers will replace the front right halfshaft assemblies, free of charge. The recall began September 20, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is U78.
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.
May 1, 2018
Chrysler (FCA US LLC) is recalling certain 2018 Jeep Cherokee vehicles equipped with a 2.4L engine. These vehicles may have been manufactured with a fuel tube that may leak fuel into the engine compartment.
Consequence & remedy
Consequence: A fuel leak in the presence of the ignition source can increase the risk of a fire.
Remedy: Chrysler will notify owners, and dealers will inspect the fuel tube, replacing it as necessary, free of charge. The recall began May 24, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is U39.
Oct 24, 2017
Chrysler (FCA US LLC) is recalling certain 2018 Jeep Cherokee and Compass vehicles equipped with 2.4L engines. The engines may have a cracked oil pump housing that can result in oil pump failure.
Consequence & remedy
Consequence: If the oil pump fails, the engine will stall, increasing the risk of a crash.
Remedy: Chrysler will notify owners, and dealers will inspect the oil pump, replacing it as necessary, free of charge. The recall began December 5, 2017. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is T65.
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.
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
1EA21002 · 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.
Illustration