OUTBACK ACCELERATES BY ITSELF RANDOMLY. I NOTICE MOST WHEN APPROACHING STOP SIGN AND SWITCH FOOT FROM GAS PEDAL TO BRAKE. *TR
2017 Subaru Outback
Owner reports · Recalls · Investigations
More warning signs than most Outback years
Owner complaints for the 2017 Subaru Outback are substantially higher than the model-year median of 207.5.
About this comparison →How this year compares
Owner complaints by model year
Compare all Outback years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
516 reports with mileage · 401 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.
- Electrical System. Review the 391 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Visibility/wiper. Review the 205 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Power Train. Review the 47 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
Engine complaints
43 reportsTL* THE CONTACT OWNS A 2017 SUBARU OUTBACK. DURING COLD WEATHER, THE VEHICLE FAILED TO START. THE FAILURE OCCURRED EVER SINCE THE VEHICLE WAS PURCHASED ON APRIL 15, 2017. THE VEHICLE WAS TAKEN TO CAPITAL SUBARU (920 CAPITAL EXPRESSWAY AUTO MALL, SAN JOSE, CA 95136) ON THREE DIFFERENT OCCASIONS, BUT THEY WERE NOT ABLE TO REPLICAT…
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TL* THE CONTACT OWNS A 2017 SUBARU OUTBACK. DURING COLD WEATHER, THE VEHICLE FAILED TO START. THE FAILURE OCCURRED EVER SINCE THE VEHICLE WAS PURCHASED ON APRIL 15, 2017. THE VEHICLE WAS TAKEN TO CAPITAL SUBARU (920 CAPITAL EXPRESSWAY AUTO MALL, SAN JOSE, CA 95136) ON THREE DIFFERENT OCCASIONS, BUT THEY WERE NOT ABLE TO REPLICATE THE FAILURE. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 38,718.
THE COOLANT LOOSE AND HAS COOLANT SMELL AFTER DRIVE A CAR. I HAD SEVERAL SAME REASON SERVICE. THEY NOTHING WRONG THEY FILL UP COOLANT THAT'S IT. NOW ALMOST EMPTY RESERVOIR. AND IT'S OVER LIMITED WARRANTY. IT'S 36059 MILES.
YESTERDAY MORNING, I STOPPED MY SUBARU IN ORDER TO BACK INTO A PARKING SPACE. THE CAR WAS IN DRIVE AND MY FOOT WAS ON THE BRAKE. WHILE MY FOOT WAS STILL ON THE BRAKE AND I WAS CHANGING GEARS FROM DRIVE TO REVERSE, THE ENGINE STARTED ACCELERATING FULL-THROTTLE. I HAD TO PRESS THE BRAKE PEDAL VERY HARD TO PREVENT THE CAR FROM G…
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YESTERDAY MORNING, I STOPPED MY SUBARU IN ORDER TO BACK INTO A PARKING SPACE. THE CAR WAS IN DRIVE AND MY FOOT WAS ON THE BRAKE. WHILE MY FOOT WAS STILL ON THE BRAKE AND I WAS CHANGING GEARS FROM DRIVE TO REVERSE, THE ENGINE STARTED ACCELERATING FULL-THROTTLE. I HAD TO PRESS THE BRAKE PEDAL VERY HARD TO PREVENT THE CAR FROM GOING DOWN THE HILLSIDE BEHIND THE PARKING LOT. I PUT THE CAR BACK IN PARK WITH THE ENGINE REVVING FULL-THROTTLE AND TURNED THE IGNITION OFF. AFTER THIS INCIDENT THE CAR OPERATED NORMALLY ' UNTIL TODAY. TODAY, MY CAR WAS PARKED IN MY DRIVEWAY IN FRONT OF MY GARAGE. WHEN I STARTED THE CAR EVERYTHING SEEMED FINE ' UNTIL, WITH MY FOOT ON THE BRAKE, I ATTEMPTED TO CHANGE GEARS FROM PARK TO DRIVE. AGAIN THE ENGINE IMMEDIATELY AND UNEXPECTEDLY ACCELERATED FULL-THROTTLE. AS I WAS MOVING THE GEAR SHIFTER FROM PARK TO REVERSE TO NEUTRAL TO DRIVE, I AGAIN HAD TO PRESS THE BRAKE PEDAL VERY HARD TO PREVENT THE CAR FROM BACKING INTO MY GARAGE DOOR. I IMMEDIATELY CALLED MY SUBARU DEALER BUT COULD NOT REACH THE SERVICE DEPARTMENT. AFTER 10-12 RINGS I GOT A MESSAGE INSTRUCTING ME TO LEAVE A MESSAGE FOR THEM TO CALL ME BACK SINCE THEY WERE CURRENTLY EXPERIENCING HEAVY CALL VOLUME DUE TO AN INCREASE IN RECALL ISSUES. I CALLED BACK AND GOT THROUGH TO SOMEONE IN THE SERVICE DEPARTMENT AND EXPLAINED THE PROBLEM TO THEM. THEY SAID THEY WERE UNFAMILIAR WITH THIS PROBLEM ON SUBARU OUTBACKS.
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.
IN TWO SEPARATE EVENTS THE CAR LOST POWER WHILE ACCELLORATING AT HIGHWAY SPEEDS TO MERGE INTO TRAFFIC FROM A STAND STILL. THE GAS PEDAL BECAME UNRESPONSIVE AND THE TRANMISSION STOPPED SHIFTING. IN THE FIRST INCIDENT THE ENGINE STALLED, AND IN THE SECOND IT SPUTTERED AND ALMOST DIED DURING A HEAVY MERGE ON AN ON RAMP. NO DIAGNOST…
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IN TWO SEPARATE EVENTS THE CAR LOST POWER WHILE ACCELLORATING AT HIGHWAY SPEEDS TO MERGE INTO TRAFFIC FROM A STAND STILL. THE GAS PEDAL BECAME UNRESPONSIVE AND THE TRANMISSION STOPPED SHIFTING. IN THE FIRST INCIDENT THE ENGINE STALLED, AND IN THE SECOND IT SPUTTERED AND ALMOST DIED DURING A HEAVY MERGE ON AN ON RAMP. NO DIAGNOSTIC CODES WERE THROWN, SO THE MANUFACTURER CLAIMS THERE IS NOTHING WRONG WITH THE CAR. IN THE FIRST INCIDENT THE CAR WAS LEAVING THE TOLL PLAZE ON THE DULLES GREENWAY HEAD TOWARD LEESBURG, VA. UNDER FULL ACELLERATION LEAVING THE TOLL PLAZA AND EFFECTIVELY DRIVING STRAIGHT, THE CAR STARTED SHUFTING ERRATICALLY, AND EVENTUALLY LOST POWER AND STALLED. IN THE SECOND INCIDENT, ABOUT TWO MONTHS LATER, THE CAR WAS ON A DECLINE ON-RAMP MERGING INTO HEAVY TRAFFIC ON RT-270N HEADING TOWARD FREDERICK, MD. THE CAR AGAIN STARTED TO SHIFT ERRATICALLY, THEN BEGAN TO STALL, BUT I WAS ABKE TO USE THE PADDLE SHIFTERS TO SHIFT THE 'GEAR' OF THE CVT AND PREVENT STALLING. AFGER ABOUT 30 SECONDS THE CAR WAS OPERATING AS NORMAL. AGAIN, THE DEALER HAS NOT FOUND ANY DIAGNOSTIC CODES, AND INDICATES THERE IS NITHING WRONG WITH THE VEHICLE.
NOT ABLE TO TAKE KEY OUT OF THE IGNITION, KEY IS BEING STUCK 50% OF THE TIME. SECOND ISSUE IS THE ENGINE IS MAKING BIRD CHIRPING NOISE, IT COMES AND GOES BUT IT GETS LOUDE!! TOOK IT TO DEALER A YEAR AGO BY THE TIME I GOT THERE THE NOISE STOPPED SO THEY COULD NOT FIGURE OUT THE ISSUE, TOOK IN THE SECOND TIME ABOUT 8 MONTHS AGO T…
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NOT ABLE TO TAKE KEY OUT OF THE IGNITION, KEY IS BEING STUCK 50% OF THE TIME. SECOND ISSUE IS THE ENGINE IS MAKING BIRD CHIRPING NOISE, IT COMES AND GOES BUT IT GETS LOUDE!! TOOK IT TO DEALER A YEAR AGO BY THE TIME I GOT THERE THE NOISE STOPPED SO THEY COULD NOT FIGURE OUT THE ISSUE, TOOK IN THE SECOND TIME ABOUT 8 MONTHS AGO THE SERVICE TECH HEARD IT AND BOOKED ME FOR AN APPOINTMENT. BY THE TIME MECHANIC GOT TO IT NEXT DAY IT STOPPED. THIS WAS ALL UNDER WARRANTY AND NOW I AM OUT OF WARRANTY AND HAVE NO SUPPORT FROM A LOCAL DEALER FROM WHERE I BOUGHT THE CAR. I DID SOME RESEARCH ON THIS ISSUES AND THERE IS A HUGE PROBLEM WITH THIS AND SUBARU IS NOT DOING ANYTHING ABOUT IT.
SIMILAR TO COMPLAIN DATED 12/09/2016 BY SOMEONE ELSE. ABOUT A YEAR AGO I WAS AT A LIGHT WAITING TO TURN LEFT, MY FOOT WAS ON THE BRAKE WHEN SUDDENLY THE ENGINE REVVED UP AND I HAD TO SWITCH TO NEUTRAL TO RETURN TO IDLE SPEED. I NOTIFIED A SUBARU REPRESENTATIVE ON THE INTERNET. THIS MONTH I HAD 4 OCCASIONS THAT I HAD SIMILAR EXPE…
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SIMILAR TO COMPLAIN DATED 12/09/2016 BY SOMEONE ELSE. ABOUT A YEAR AGO I WAS AT A LIGHT WAITING TO TURN LEFT, MY FOOT WAS ON THE BRAKE WHEN SUDDENLY THE ENGINE REVVED UP AND I HAD TO SWITCH TO NEUTRAL TO RETURN TO IDLE SPEED. I NOTIFIED A SUBARU REPRESENTATIVE ON THE INTERNET. THIS MONTH I HAD 4 OCCASIONS THAT I HAD SIMILAR EXPERIENCE IN A SHOPPING MALL TRYING TO TURN RIGHT INTO A PARKING SPACE. THIS FRIDAY I TRIED TO PARK IN MY GARAGE AFTER 5 MILES DRIVE, AND MY WIFE WAS A PASSENGER, I TURNED THE WHEEL SLIGHTLY TO THE LEFT WHEN THE ENGINE REVVED UP FROM IDLE OF 600 TO 2000 RPM AND THEN WENT TO 4000 RPM. I WAS USING THE BRAKE AND I FELT A SKID OF A TIRE. SWITCHED TO NEUTRAL AND PARK AND TURNED OFF THE ENGINE. MY WIFE WAS SCARED AND WOULD NOT RIDE IN MY CAR. I HAVE AN APPOINTMENT WITH MY WAKEFIELD SUBARU DEALER ON 09/25/18, I DID NOT DRIVE MY CAR SINCE THE LAST EPISODE. MY ODOMETER IS 14241 MILES. I AM POSITIVE I DID NOT STEP ON THE GAS, ONLY THE BRAKE.
OPEN LETTER TO SUBARU AND SUBARU OWNERS. I HAVE A 2017 SUBARU OUTBACK. THE REASON I PURCHASED THE CAR WAS THE HIGH SAFETY RATINGS. I CAME HOME YESTERDAY, DROVE INTO THE GARAGE AND SHUT THE CAR OFF I THOUGHT. I APPARENTLY DID NOT PUSH THE START AND KILL BUTTON HARD ENOUGH. I AM HARD OF HEARING SO DID NOT NOTICE THE ENGINE STILL R…
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OPEN LETTER TO SUBARU AND SUBARU OWNERS. I HAVE A 2017 SUBARU OUTBACK. THE REASON I PURCHASED THE CAR WAS THE HIGH SAFETY RATINGS. I CAME HOME YESTERDAY, DROVE INTO THE GARAGE AND SHUT THE CAR OFF I THOUGHT. I APPARENTLY DID NOT PUSH THE START AND KILL BUTTON HARD ENOUGH. I AM HARD OF HEARING SO DID NOT NOTICE THE ENGINE STILL RUNNING. THIS CAR DOES NOT HAVE A REMOTE START. MY GARAGE DOOR AUTOMATICALLY CLOSES AFTER A PRESET TIME. I HAPPENED OUT TO THE GARAGE 3 HOURS LATTER TO FIND THE CAR ENGINE STILL RUNNING. I CAN NOT THE IMAGINE THE CARS COMPUTER ALLOWING THE ENGINE TO CONTINUE TO RUN FOR THREE HOURS WITHOUT THE KEY BEING IN CLOSE PROXIMITY OF THE VEHICLE. THIS IS A VERY DANGEROUS SITUATION. IT WAS WELL OVER 100 DEGREES IN THE GARAGE PLUS THE CARBON MONOXIDE LEVEL WAS OUTRAGEOUS. IF THERE IS COMPUTER SETTING TO STOP THIS PLEASE LET ME KNOW. RICHARD
DRIVING BACK TO MICHIGAN FROM FLORIDA, MY 2017 SUBARU OUTBACK (6000 MILES) STALLED TWICE UNEXPECTEDLY IN HEAVY TRAFFIC CONDITIONS ON I75. THE VEHICLE WAS IN STOP AND GO TRAFFIC WHEN IT STALLED. I COASTED TO THE MEDIAN, PLACED THE CAR IN PARK AND RESTARTED THE ENGINE. (BOTH TIMES) THE CONDITION HAS NOT REPEATED ITSELF SINCE, NOW …
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DRIVING BACK TO MICHIGAN FROM FLORIDA, MY 2017 SUBARU OUTBACK (6000 MILES) STALLED TWICE UNEXPECTEDLY IN HEAVY TRAFFIC CONDITIONS ON I75. THE VEHICLE WAS IN STOP AND GO TRAFFIC WHEN IT STALLED. I COASTED TO THE MEDIAN, PLACED THE CAR IN PARK AND RESTARTED THE ENGINE. (BOTH TIMES) THE CONDITION HAS NOT REPEATED ITSELF SINCE, NOW HAS (7800 MILES). SUBARU DEALERSHIP COULD NOT REPLICATE THE PROBLEM AND SUBARU CUSTOMER SERVICE CANNOT RESOLVE THE ISSUE.
Official recalls
419V910000 · Air Bags: Air Bag/restraint Control Module
Dec 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.
16V716000 · Air Bags:knee Bolster; Steering:column
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.
16V576000 · Service Brakes, Hydraulic:foundation Components:disc:caliper; Suspension
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.
16V292000 · Steering:column
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.
Illustration