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2018 Jeep Cherokee

Owner reports · Recalls · Investigations

More warning signs than most Cherokee years

Owner complaints for the 2018 Jeep Cherokee are substantially higher than the model-year median of 113.

About this comparison →

When problems were reported

Mileage at the reported incident

359 reports with mileage · 324 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 292 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 190 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine. Review the 155 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

11 crash reports5 fire reports3 injury reports

Unknown Or Other complaints

173 reports
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Mileage unknown · Jan 29, 2025
StructureUnknown Or Other

In early 2021, the doorhandle on the driver's side of my car froze in minimal snow/freezing rain. The electronics in the doorhandle were corrupted, and broke. This cause a short in the system, making my car lock and unlock itself uncontrolled, thereby draining the battery. The car could not be jumpstarted for this reason because…

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In early 2021, the doorhandle on the driver's side of my car froze in minimal snow/freezing rain. The electronics in the doorhandle were corrupted, and broke. This cause a short in the system, making my car lock and unlock itself uncontrolled, thereby draining the battery. The car could not be jumpstarted for this reason because the battery was perpetually drained. It required being towed, and the remedy took several months. This is completely unreasonable, for a small freeze to totally "brick" an off-road vehicle because of a doorhandle issue.

NHTSA ODI #11639448

Mileage unknown · Jan 29, 2025
Power TrainUnknown Or Other

Starting in early 2021, I had my Jeep serviced, and noted a constant banging noise and feeling while driving my car. It was inspected (for lots of money) and test driven. I was told the noise is "normal." As time went on, it progressively got louder, more vibrating, and more frequent. I noted this as a continuing concern--I was …

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Starting in early 2021, I had my Jeep serviced, and noted a constant banging noise and feeling while driving my car. It was inspected (for lots of money) and test driven. I was told the noise is "normal." As time went on, it progressively got louder, more vibrating, and more frequent. I noted this as a continuing concern--I was told "it is normal for this vehicle." I just spoke with the dealership again, in light of the Transfer Case recall (25V011), and when he looked at my history, he said I needed to immediately call Mopar. Because there is not one moment my car isn't banging while it's in "drive," he said it was a serious issue and I shouldn't wait for the "parts to be available." He also apologized that I was told several times that something like this is normal. I called Mopar today and spoke with "Kate" at 1:29 PST on 1/29/2025. She noted the lack of parts and a plan. When I explained that my car has active issues she said, "let me transfer you to the recall department." I thought Kate was in the recall department! She then transferred me to the original calling system, and I got nowhere. So I am emailing you to inform you that my vehicle has a constant banging noise consistent with your recall, based on a Jeep dealership's assessment and my brief call with Kate at Mopar. It was also noted by one of Jeeps' service techs, today that I should contact Mopar for immediate next steps; that he believe my vehicle could immediately become catastrophic. Mopar provided me with no additional remedies or steps. This is my sole mode of transportation and I live in a rural, hilly community. Legally, I need to document my attempts to remedy this, in the event that the vehicle does harm or kill someone--because, as noted in the recall and at the Jeep service center, even park can fail and run someone over.

NHTSA ODI #11639445

Mileage unknown · Oct 20, 2024
Unknown Or Other

i took my jeep in august 2024 to repair a recall (W20) pcm a month later i started experiencing stalling. engine will start fine but after while driving car will stall. almost got hit from behind one of the times. car will stall in traffic and no restart itself sometimes. other times it quickly restarts and feels fine. i got an…

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i took my jeep in august 2024 to repair a recall (W20) pcm a month later i started experiencing stalling. engine will start fine but after while driving car will stall. almost got hit from behind one of the times. car will stall in traffic and no restart itself sometimes. other times it quickly restarts and feels fine. i got an oil change today. but stil having the issue.

NHTSA ODI #11620891

Mileage unknown · Oct 18, 2024
Unknown Or Other

Vehicle keeps having the service shifter light come on with all of the "PRDN" lights turning red. I have to quickly try and get off of the road and see if I can get my car into "Park" and then turn the car off, let it sit for a few minutes and then turn the car back on. There is not a recall on this, but I can see that a lot of …

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Vehicle keeps having the service shifter light come on with all of the "PRDN" lights turning red. I have to quickly try and get off of the road and see if I can get my car into "Park" and then turn the car off, let it sit for a few minutes and then turn the car back on. There is not a recall on this, but I can see that a lot of people with this same type of vehicle and same year have had this issue. The shifter wiring is faulty and also needs updates or else this can cause the vehicle to completely turn off while driving which could in turn cause an accident.

NHTSA ODI #11620523

Mileage unknown · Jul 30, 2024
SuspensionUnknown Or Other

A week ago, I went to my local garage that I trust for a completely different reason than I ended up leaving with. I have a 2018 Jeep Cherokee. I have less than 62,500 miles on this vehicle. I do not tow anything. I do not go off road. I do not ride down trails or do anything out of the ordinary. I live in the Boston area. What…

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A week ago, I went to my local garage that I trust for a completely different reason than I ended up leaving with. I have a 2018 Jeep Cherokee. I have less than 62,500 miles on this vehicle. I do not tow anything. I do not go off road. I do not ride down trails or do anything out of the ordinary. I live in the Boston area. What I found when I was at the garage was an issue that the garage couldn't fix. I needed a rear differential unit replace. Jeep discontinued the Jeep Cherokee this year. What a coincidence because the differential unit isn't available. It's been on back order all year based on what I see online. I spoke to someone at a service department today. He told me it has been on back order, there are 150 ish that have been requested. There are 8 ready for deployment in July. So I will have 140+ people ahead of me for this thing that doesn't exist on a vehicle they no longer make. Today I went to a Jeep dealership and they looked at the unit and said at some point it's going to break and I'll lose control of my vehicle. They've seen this issue in the past and its not pretty and told me I should trade it in immediately. I have a vehicle with 62,500 miles that is essentially totaled . It will become inoperable in a matter of months, if not weeks. Even if they get the part, they told me it would be $3,500 for the part, plus another $1,500 for labor, plus likely the axle needs to be replaced, plus another part and it's likely $8,000 to fix it all. And it could be 6-12 months before they can fix it. I get it, it's sexy to chase the airlines. The headlines are great. Vehicles is another story. That's not a sexy storyline. But Jeep is taking someone who FINALLY paid off this vehicle this month and is forcing me to buy a new vehicle. I don't get to use insurance on my totaled vehicle. Jeep is forcing me into trading this vehicle in by not producing parts. Vehicle was inspected today. No warning lamps. It was found by mistake.

NHTSA ODI #11605534

Mileage unknown · Jul 13, 2024
Unknown Or Other

I keep getting an warning that my shifter needs to serviced. After much research, I've discovered that this is a known and common problem with Jeep Cherokees. It should absolutely be a safety recall and fixed at no cost to the customers.

NHTSA ODI #11601795

Mileage unknown · Jul 10, 2024
EngineUnknown Or Other

The vehicle consume too much oil .it completely run out of oil after driving a 1000 mile only .the engine stop suddenly while driving which put my safety in danger .because it happened when the vehicle engine stop running in the highway in the middle of traffic. I call the manufacturer they said there is a recall (W20 )for t…

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The vehicle consume too much oil .it completely run out of oil after driving a 1000 mile only .the engine stop suddenly while driving which put my safety in danger .because it happened when the vehicle engine stop running in the highway in the middle of traffic. I call the manufacturer they said there is a recall (W20 )for this car regarding those issue . And they said once they update the car software those issues should be resolved. But afterwards the same issue still happenings. The car currently only has 32k miles .those problems started back on March 2024 when.the car has only 24k miles

NHTSA ODI #11600979

Mileage unknown · May 28, 2024
Air BagsFuel/propulsion SystemUnknown Or Other

Jeep Cherokee 2018 limited AC turns off throughout the drive. It makes the SUV vibrate to the point I can’t see out the review mirror. Had AC serviced and checked. Issue persisted shortly after.

NHTSA ODI #11591162

Mileage unknown · Apr 25, 2024
Unknown Or Other

I went in to my dealership Nov. 24,2023 for a water leak to the driver side floor and to the back seat behind the driver side. It was starting to smell so I used some carpet cleaner to get rid of the smell. They replaced the panel cowl side trims on both sides of the windshield. I told them that only driver side floor and back s…

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I went in to my dealership Nov. 24,2023 for a water leak to the driver side floor and to the back seat behind the driver side. It was starting to smell so I used some carpet cleaner to get rid of the smell. They replaced the panel cowl side trims on both sides of the windshield. I told them that only driver side floor and back seat behind the driver was wet. Never said that there was a water on the passenger side floor? Charged me $543.22. Had to go back a second time because it was still leaking on Dec. 20,2023. This time they put caulking to solve the problem at no charge. Now April 19,2024 I still noticed that it's leaking after I washed my vehicle. So now I have to go in a third time in less than 6 months. Never solved my water leak after paying them $543.22. I do believe that this water leak was happening possibly since day 1 having the vehicle. I bought weathertech floor mats once I purchased my vehicle. I had a liner on the floor and then the floor mat on top. So its like using 2 mats. Never thought to look underneath my mats for a water leak. I do not want this problem to persist and possibly have black mold in my vehicle. Already contacted Jeep customer service if they can help resolve this issue and If they can provide me with a rental car for my inconvenience. They did provide me a case number. Still waiting for their response. Please let me know if you need more information. Thank you.

NHTSA ODI #11585212

Mileage unknown · Apr 4, 2024
Unknown Or Other

Every now & then the menu will pop up & say service shifter & won't allow you to exit that notification & all the lights on the shifter turn red at the same time. The only way to reset it is to turn the jeep off & back on again. I've gone a couple months now without it happening but for awhile it was doing it almost every day. …

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Every now & then the menu will pop up & say service shifter & won't allow you to exit that notification & all the lights on the shifter turn red at the same time. The only way to reset it is to turn the jeep off & back on again. I've gone a couple months now without it happening but for awhile it was doing it almost every day. It doesn't seem to affect the driving at all though which is odd. However there has been a pretty consistent jerking when accelerating into higher gears. Not sure if it's related or not. My dealership said there was nothing wrong with my vehicle so i just keep dealing with it.

NHTSA ODI #11581219

Official recalls

7

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.

18V524000 · Electrical System:wiring:front Underhood

Aug 9, 2018

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

Consequence & remedy

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

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

18V494000 · Power Train:axle Assembly:axle Shaft

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.

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.

18V282000 · Fuel System, Gasoline:delivery:hoses, Lines/piping, And Fittings

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.

17V670000 · Engine And Engine Cooling:engine

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.

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.

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.