NHTSA owner reports · September 18, 2026 snapshot.
Power Train complaints
47 reportsClear category filter93,700 miles · Aug 14, 2020
Electrical SystemPower Train
TL* THE CONTACT OWNS A 2017 SUBARU OUTBACK. THE CONTACT STATED THAT THE GEAR BOX FAILED TO RECOGNIZE WHEN THE VEHICLE WAS IN PARK WHICH CAUSED THE KEY TO NOT BE ABLE TO BE REMOVED FROM THE IGNITION. THERE WAS NO WARNING. THE VEHICLE WAS TAKEN TO THE SUBARU OF KENNESAW DEALER LOCATED AT 905 ERNEST W. BARRETT PKWY NW, KENNESAW, GA…
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TL* THE CONTACT OWNS A 2017 SUBARU OUTBACK. THE CONTACT STATED THAT THE GEAR BOX FAILED TO RECOGNIZE WHEN THE VEHICLE WAS IN PARK WHICH CAUSED THE KEY TO NOT BE ABLE TO BE REMOVED FROM THE IGNITION. THERE WAS NO WARNING. THE VEHICLE WAS TAKEN TO THE SUBARU OF KENNESAW DEALER LOCATED AT 905 ERNEST W. BARRETT PKWY NW, KENNESAW, GA 30144, WHERE IT WAS STATED THAT THE FAILURE WAS A KNOWN ISSUE AND SCHEDULED AN APPOINTMENT FOR THE CONTACT. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND STATED THAT THERE WERE MULTIPLE COMPLAINTS ABOUT THE FAILURE AND THAT THE DEALER WOULD BE CONTACTED. THE VEHICLE WAS REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 93,700.*DT*DT CONSUMER WAS REIMBURSED FOR THE REPAIR.*JB
NHTSA ODI #11349271
45,892 miles · Jun 30, 2020
Power Train
WITH NO WARNING AND DRIVING 70 MPH ON THE INTERSTATE PRESSING THE GAS PEDAL RESULTED IN NOTHING. DASHBOARD LIGHTS STARTED INDICATING 'BRAKE' AND OTHER DISTRACTING MESSAGES. I WAS IN THE FAR LEFT LANE IN HEAVY TRAFFIC, BUT WAS SOMEHOW ABLE TO CROSS OVER TWO LANES WITHOUT A COLLISION AND MAKE IT PART WAY UP A RAMP. CAR WAS TOWED I…
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WITH NO WARNING AND DRIVING 70 MPH ON THE INTERSTATE PRESSING THE GAS PEDAL RESULTED IN NOTHING. DASHBOARD LIGHTS STARTED INDICATING 'BRAKE' AND OTHER DISTRACTING MESSAGES. I WAS IN THE FAR LEFT LANE IN HEAVY TRAFFIC, BUT WAS SOMEHOW ABLE TO CROSS OVER TWO LANES WITHOUT A COLLISION AND MAKE IT PART WAY UP A RAMP. CAR WAS TOWED INTO A SUBARU DEALER WHO FOUND A 'BROKEN VARIATION CHAIN'. A NEW TRANSMISSION WAS INSTALLED FOUR DAYS LATER. I NO LONGER FEEL SAFE IN THIS VEHICLE OR ANY WITH THIS TRANSMISSION NOW THAT I HAVE READ ABOUT ALL IT'S ISSUES. WHY DID I NOT HAVE A WARNING SINCE IT IS A KNOWN PROBLEM? IMPORTANTLY, WHY IN THE MIDST OF A POTENTIALLY LIFE ENDING EMERGENCY DID I NOT GET A MEANINGFUL DASHBOARD WARNING, E.G., 'PULL OFF ROAD', 'POWER LOST', 'TRANSMISSION FAIL'?
NHTSA ODI #11331780
3,000 miles · May 28, 2020
Power Train
TL* THE CONTACT OWNS A 2017 SUBARU OUTBACK. THE CONTACT STATED THAT WHILE ATTEMPTING TO ACCELERATE THE VEHICLE FORWARD AFTER OR DURING A MANEUVERING THE VEHICLE IN A SENSE WHERE THE CONTACT WOULD HAVE TO DECELERATE THE VEHICLE FIRST. THE CONTACT TOOK THE VEHICLE TO THE DEALERSHIP A TOTAL OF 2 TIMES SUBARU OF JACKSONVILLE (10800 …
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TL* THE CONTACT OWNS A 2017 SUBARU OUTBACK. THE CONTACT STATED THAT WHILE ATTEMPTING TO ACCELERATE THE VEHICLE FORWARD AFTER OR DURING A MANEUVERING THE VEHICLE IN A SENSE WHERE THE CONTACT WOULD HAVE TO DECELERATE THE VEHICLE FIRST. THE CONTACT TOOK THE VEHICLE TO THE DEALERSHIP A TOTAL OF 2 TIMES SUBARU OF JACKSONVILLE (10800 ATLANTIC BLVD, JACKSONVILLE, FL 32225, (904) 641-6455) WHO INFORMED THE CONTACT THAT THE TRANSMISSION WAS A DINO FLOW TRANSMISSION AND NEEDED TO BE OPERATED IN A CERTAIN MANNER THAT THE CONTACT MAY NOT HAVE DONE. THE CONTACT MADE THE NECESSARY ADJUSTMENTS OPERATING THE VEHICLE HOWEVER, THE FAILURE PERSISTED. THE CONTACT RETURNED THE VEHICLE TO THE DEALER WHO PROVIDED THE CONTACT A LOANER VEHICLE. THE DEALER WAS NOT ABLE TO IDENTIFY THE CAUSE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 3,000.
NHTSA ODI #11326339
36,000 miles · May 16, 2020
EnginePower TrainService Brakes
OUTBACK ACCELERATES BY ITSELF RANDOMLY. I NOTICE MOST WHEN APPROACHING STOP SIGN AND SWITCH FOOT FROM GAS PEDAL TO BRAKE. *TR
NHTSA ODI #11324814
30,000 miles · Apr 16, 2020
Power Train
WHEN THE VEHICLE IS PLACED IN PARK IT IS NOT POSSIBLE TO REMOVE THE KEY. THIS LEAVES ME STRANDED AS I CAN NOT LEAVE THE VEHICLE. I WAS LEFT STRANDED IN MEXICO. *TR
NHTSA ODI #11321318
35,326 miles · Mar 16, 2020
Power Train
CVT TRANSMISSION AT 35326 MILES STARTED DISTRIBUTING POWER INDISCRIMINATELY TO ANY OF THE 4 WHEEL CAUSING INSTABILITY AND SHAKING WHEN DRIVING. VERY DIFFICULT TO CONTROL WHEN DRIVING. TRANSMISSION REQUIRES REPLACEMENT.
NHTSA ODI #11318320
32,000 miles · Dec 6, 2019
Power Train
TRANSMISSION PERIODICALLY PUTS EXTRA POWER TO WHEELS DURING BRAKING RESULTING IN MANY NEAR MISSES.
NHTSA ODI #11287484
42,000 miles · Oct 6, 2019
Electrical SystemPower Train
THE KEYS COULD NOT BE REMOVED FROM THE IGNITION AFTER SHIFTING THE CAR INTO PARK AND TURNING THE CAR OFF. THE PROBLEM FIRST APPEARED AROUND SEPTEMBER 2019 (APPROXIMATELY 42,000 MILES). OVER THE NEXT FEW WEEKS THE PROBLEM PROGRESSIVELY GOT WORSE, AND REQUIRED SHIFTING FROM NEUTRAL TO PARK MULTIPLE TIMES UNTIL THE KEYS COULD BE RE…
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THE KEYS COULD NOT BE REMOVED FROM THE IGNITION AFTER SHIFTING THE CAR INTO PARK AND TURNING THE CAR OFF. THE PROBLEM FIRST APPEARED AROUND SEPTEMBER 2019 (APPROXIMATELY 42,000 MILES). OVER THE NEXT FEW WEEKS THE PROBLEM PROGRESSIVELY GOT WORSE, AND REQUIRED SHIFTING FROM NEUTRAL TO PARK MULTIPLE TIMES UNTIL THE KEYS COULD BE REMOVED. THE SELECT LEVER ASSEMBLY (PART 35111AL00B) WAS REPLACED WITH THE NEWER VERSION (PART 35111AL00C) WHICH FIXED THE ISSUE. THE ORIGINAL SELECT LEVER ASSEMBLY (35111AL00B) WAS TESTED AND IT HAD A PROBLEM WITH THE "P" RANGE SWITCH. RESISTANCE ACROSS SELECT LEVER ASSEMBLY PINS 1 AND 2 SHOWED A RESISTANCE OF 2-3 OHMS WHEN THE SELECT LEVER WAS IN THE PARK POSITION. THE SERVICE MANUAL STATES THAT THE "P" RANGE SWITCH RESISTANCE SHOULD BE LESS THAN 1 OHM WHEN IN THE PARK POSITION. THIS HIGH RESISTANCE LIKELY CAUSED THE IGNITION TO FAIL TO RECOGNIZE THAT THE CAR WAS IN PARK AND PREVENTED THE KEYS FROM BEING REMOVED.
NHTSA ODI #11266627
50,000 miles · Jul 31, 2019
Electrical SystemEnginePower Train
CANNOT REMOVE KEY FROM IGNITION WHEN IN PARK. MANY OTHERS HAVE REPORTED THIS ONLINE, AND THE DEALERSHIP IS CHARGING ME TO CHECK WHAT THE ISSUE IS. WHEN IN PARK, STEERING WHEEL IS STRAIGHT, NOT ON A SLOPE, THE KEY IS STUCK IN THE IGNITION. CAN TURN IT OFF, BUT CAN'T REMOVE THE KEY. SOMETIMES JIGGLING, SOMETIMES STARTING AND T…
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CANNOT REMOVE KEY FROM IGNITION WHEN IN PARK. MANY OTHERS HAVE REPORTED THIS ONLINE, AND THE DEALERSHIP IS CHARGING ME TO CHECK WHAT THE ISSUE IS. WHEN IN PARK, STEERING WHEEL IS STRAIGHT, NOT ON A SLOPE, THE KEY IS STUCK IN THE IGNITION. CAN TURN IT OFF, BUT CAN'T REMOVE THE KEY. SOMETIMES JIGGLING, SOMETIMES STARTING AND TURNING BACK OFF, AND SOMETIMES STARTING, PUTTING IN DRIVE, AND SLAMMING THE SHIFTER INTO PARK AGAIN SOLVES THE ISSUE, BUT SOMETIMES NOT. SPENT OVER 20 MINUTES TODAY TRYING TO GET IT OUT, DROVE TO THE DEALER, AND IT CAME OUT WITHOUT AN ISSUE. NO CONSISTENCY TO THE ISSUE.
NHTSA ODI #11240809
65,000 miles · Jun 26, 2019
Power TrainCrash
THE GEAR SHIFT DOES NOT ENGAGE FULLY IN PARK WHEN THE CAR IS STOPPED. THIS IS AN INTERMITTENT PROBLEM. IF IT IS NOT ENGAGED FULLY WHEN THE ENGINE IS OFF, THE KEY CANNOT BE REMOVED AND THE GEAR SHIFT CAN SLIDE FROM PARK TO REVERSE AND NEUTRAL WITHOUT PRESSING THE GEAR SHIFT BUTTON. IT IS NECESSARY TO RESTART THE CAR SOMETIMES TWO…
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THE GEAR SHIFT DOES NOT ENGAGE FULLY IN PARK WHEN THE CAR IS STOPPED. THIS IS AN INTERMITTENT PROBLEM. IF IT IS NOT ENGAGED FULLY WHEN THE ENGINE IS OFF, THE KEY CANNOT BE REMOVED AND THE GEAR SHIFT CAN SLIDE FROM PARK TO REVERSE AND NEUTRAL WITHOUT PRESSING THE GEAR SHIFT BUTTON. IT IS NECESSARY TO RESTART THE CAR SOMETIMES TWO OR THREE TIMES IN ORDER FOR PARK TO FULLY ENGAGE. TWICE WHEN THE CAR WAS IDLING IN PARK IT DID NOT ENGAGE FULLY AND SLID INTO REVERSE. THE SECOND TIME CAUSED AN ACCIDENT BUT NO INJURIES. THE CAR HAS BEEN SERVICED REGULARLY AND THERE HAVE BEEN NO WARNING INDICATORS TO DATE.
NHTSA ODI #11222670
Official recalls
4Dec 19, 2019
Subaru of America, Inc. (Subaru) is recalling certain 2016-2017 Outback vehicles. A replacement air bag control module may have been installed that is not compatible with the passenger air bag module, possibly affecting air bag deployment.
Consequence & remedy
Consequence: In the event of a crash necessitating passenger frontal air bag deployment, the air bag may not deploy properly, increasing the risk of injury.
Remedy: Subaru will notify owners, and dealers will replace the passenger air bag module, free of charge. The recall began February 3, 2020. Owners may contact Subaru customer service at 1-844-373-6614. Subaru's number for this recall is WUX-09.
Oct 6, 2016
Subaru of America, Inc. (Subaru) is recalling certain model year 2017 Legacy and Outback vehicles manufactured September 21, 2016, to September 23, 2016. In the affected vehicles, the knee guard bracket may not be properly attached to the steering beam assembly.
Consequence & remedy
Consequence: If the knee guard is not properly attached and the driver is not wearing a seatbelt, the knee guard may not be able to properly restrain the driver's lower body in the event of a crash, increasing the risk of injury.
Remedy: Subaru will notify owners, and dealers will inspect the knee guard welding on each vehicle's steering beam, replacing the beam as necessary, free of charge. The recall began November 14, 2016. Owners may contact Subaru customer service at 1-800-782-2783. Subaru's number for this recall is WTL-72.
Additional source detail variants (2)
Air Bags:knee Bolster
Subaru of America, Inc. (Subaru) is recalling certain model year 2017 Legacy and Outback vehicles manufactured September 21, 2016, to September 23, 2016. In the affected vehicles, the knee guard bracket may not be properly attached to the steering beam assembly.
Consequence: If the knee guard is not properly attached and the driver is not wearing a seatbelt, the knee guard may not be able to properly restrain the driver's lower body in the event of a crash, increasing the risk of injury.
Remedy: Subaru will notify owners, and dealers will inspect the knee guard welding on each vehicle's steering beam, replacing the beam as necessary, free of charge. The recall began November 14, 2016. Owners may contact Subaru customer service at 1-800-782-2783. Subaru's number for this recall is WTL-72.
Steering:column
Subaru of America, Inc. (Subaru) is recalling certain model year 2017 Legacy and Outback vehicles manufactured September 21, 2016, to September 23, 2016. In the affected vehicles, the knee guard bracket may not be properly attached to the steering beam assembly.
Consequence: If the knee guard is not properly attached and the driver is not wearing a seatbelt, the knee guard may not be able to properly restrain the driver's lower body in the event of a crash, increasing the risk of injury.
Remedy: Subaru will notify owners, and dealers will inspect the knee guard welding on each vehicle's steering beam, replacing the beam as necessary, free of charge. The recall began November 14, 2016. Owners may contact Subaru customer service at 1-800-782-2783. Subaru's number for this recall is WTL-72.
Aug 3, 2016
Subaru of America, Inc. (Subaru) is recalling certain model year 2017 Outback vehicles manufactured June 20, 2016, to June 23, 2016. The affected vehicles may have improperly tightened attaching bolts for the front left and right brake calipers, wheel hubs, and the right stabilizer clamp.
Consequence & remedy
Consequence: If any of the front brake caliper, wheel hub or stabilizer clamp attaching bolts loosen or detach, the related components would also become loose and may detach possibly making the vehicle unstable and reducing the braking capability. These conditions would increase the risk of a crash.
Remedy: Subaru has notified owners, and dealers will inspect the bolts for proper torque, and replace any loose bolts, free of charge. The recall began on August 8, 2016. Owners may contact Subaru customer service at 1-800-782-2783. Subaru's number for this recall is WTE-66.
Additional source detail variants (2)
Service Brakes, Hydraulic:foundation Components:disc:caliper
Subaru of America, Inc. (Subaru) is recalling certain model year 2017 Outback vehicles manufactured June 20, 2016, to June 23, 2016. The affected vehicles may have improperly tightened attaching bolts for the front left and right brake calipers, wheel hubs, and the right stabilizer clamp.
Consequence: If any of the front brake caliper, wheel hub or stabilizer clamp attaching bolts loosen or detach, the related components would also become loose and may detach possibly making the vehicle unstable and reducing the braking capability. These conditions would increase the risk of a crash.
Remedy: Subaru has notified owners, and dealers will inspect the bolts for proper torque, and replace any loose bolts, free of charge. The recall began on August 8, 2016. Owners may contact Subaru customer service at 1-800-782-2783. Subaru's number for this recall is WTE-66.
Suspension
Subaru of America, Inc. (Subaru) is recalling certain model year 2017 Outback vehicles manufactured June 20, 2016, to June 23, 2016. The affected vehicles may have improperly tightened attaching bolts for the front left and right brake calipers, wheel hubs, and the right stabilizer clamp.
Consequence: If any of the front brake caliper, wheel hub or stabilizer clamp attaching bolts loosen or detach, the related components would also become loose and may detach possibly making the vehicle unstable and reducing the braking capability. These conditions would increase the risk of a crash.
Remedy: Subaru has notified owners, and dealers will inspect the bolts for proper torque, and replace any loose bolts, free of charge. The recall began on August 8, 2016. Owners may contact Subaru customer service at 1-800-782-2783. Subaru's number for this recall is WTE-66.
May 11, 2016
Subaru of America, Inc. (Subaru) is recalling certain model year 2016-2017 Legacy and Outback vehicles manufactured February 29, 2016, to May 6, 2016. The steering column on the affected vehicles may have been improperly machined, and as a result, turning the steering wheel may have no effect on the direction of the wheels.
Consequence & remedy
Consequence: The loss of steering ability would increase the risk of a crash.
Remedy: Subaru will notify owners, and dealers will inspect the lot number on the steering column, replacing the steering column, as necessary, free of charge. The recall began May 13, 2016. Owners may contact Subaru customer service at 1-800-782-2783 or by visiting http://www.wtd65.service-campaign.com. Subaru's number for this recall is WTD-65. Note: Until the vehicles have been inspected, owners are advised not to drive their vehicles.
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.
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