WHEN THE CAR IS IN PARK AND I TRY TO REMOVE THE KEY IT WILL NOT RELEASE. HAVE TO TURN THE CAR BACK ON BACK UP, PUT IT IN DRIVE AND ACCELERATE FORWARD, SOMETIMES SEVERAL TIMES BEFORE THE KEY WILL RELEASE. *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.
Electrical System complaints
391 reportsTHE BATTERY HAS WEAKENED. I WOULD DRIVE TO CHARGE IT. TODAY THE BATTERY WAS COMPLETELY DEAD AND THE CAR HAD TO BE JUMP STARTED TO TAKE TO THE DEALER. THEY CHECKED THE BATTERY AND SAID THAT THEY FOUND NO PROBLEMS, HOWEVER THE PASSENGER WINDOW STILL DOES NOT WORK WITH THE CONTROL. I HAVE LESS THAN 23,000 MILES ON THE CAR. *TR
THE VEHICLE'S BATTERY DRAINS VERY QUICKLY AND NEEDS A JUMP START. HAS BEEN A CONTINUOUS ISSUE FOR SEVERAL MONTHS. WE HAVE HAD TO BUY A JUMP START KIT. DEALER SAID THE BATTERY IS FINE AND CANNOT DIAGNOSE THE ISSUE. SAMS CLUB AND A NISSAN DEALERSHIP HAVE BOTH SAID THE BATTERY WAS NOT THE PROBLEM. *TR
WHEN STATIONARY, THE REAR LIFT GATE OPENS WITHOUT BEING NEARBY OR ACTIVATING SWITCH. ONE TIME AFTER THE GATE OPENED, IT APPARENTLY DID NOT SHUT PROPERLY. AFTER ABOUT 10 DAYS, THE CAR BATTERY DIED. THE BATTERY WAS 6 MONTHS OLD. AFTER RESTARTING THE CAR, GATE HAD TO BE MANUALLY UNLOCKED FROM THE INSIDE. *TR
I BELIEVE THERE IS A PARASITIC DRAW ON THE ELECTRICAL SYSTEM OF MY 2017 OUTBACK (WHICH I PURCHASED IN 2016). IT HAS DIED REPEATEDLY AND RANDOMLY SINCE I PURCHASED IT, FAILING TO START AFTER BEING PARKED FOR A FEW HOURS. MORE TIMES THAN NOT NOW, IT HAS HAPPENED WHEN I'M IN THE BACKCOUNTRY (SUCH AS 05/28/2019), SOMETIMES AWAY FRO…
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I BELIEVE THERE IS A PARASITIC DRAW ON THE ELECTRICAL SYSTEM OF MY 2017 OUTBACK (WHICH I PURCHASED IN 2016). IT HAS DIED REPEATEDLY AND RANDOMLY SINCE I PURCHASED IT, FAILING TO START AFTER BEING PARKED FOR A FEW HOURS. MORE TIMES THAN NOT NOW, IT HAS HAPPENED WHEN I'M IN THE BACKCOUNTRY (SUCH AS 05/28/2019), SOMETIMES AWAY FROM CELL SERVICE. INITIALLY, I BROUGHT IT INTO THE DEALER AND THEY WERE UNABLE TO FIND ANYTHING WRONG, SO I HAVE CONTINUED TO MONITOR IT. SOMETIMES, IT IS "JUST" A DEAD BATTERY THAT CAN BE JUMPED (LIKE 10/21/2018), BUT ON OCCASION, THE CAR WILL START MOMENTARILY BUT THEN THE ENTIRE ELECTRICAL SYSTEM WILL SHUT DOWN IMMEDIATELY (03/08/2020). SOMETIMES IT IS SO DRAINED THAT THE CAR FOB WON'T EVEN WORK. EACH TIME I TAKE IT TO THE SHOP (DEALER OR MIDAS), THEY CANNOT DIAGNOSE ANY ISSUE - "THE ALTERNATOR TESTS WELL, BUT SOMETHING IS DRAINING THE BATTERY." I HAVE EVEN PURCHASED A NEW BATTERY, WHICH WAS SUPPOSED TO LAST 5 YEARS, AND IT FAILED IN UNDER A YEAR. I KEEP MY INTERIOR LIGHTS OFF AND DO NOT HAVE ANYTHING EXTRANEOUS PLUGGED INTO THE CAR, YET THE PROBLEM PERSISTS - IT HAPPENED TWICE YESTERDAY (5/29/2020). I HAVE RECENTLY LEARNED THAT THIS IS A WELL-KNOWN ISSUE FOR OUTBACK OWNERS ON VARIOUS ONLINE FORUMS AND I HOPE THAT SUBARU IS ABLE TO DO SOMETIME TO CORRECT THIS PROBLEM - THE REASON I BOUGHT THIS VEHICLE WAS TO HAVE RELIABLE TRANSPORTATION, WHICH, UNFORTUNATELY, IT MOST CERTAINLY IS NOT. *TR
TL* THE CONTACT OWNS A 2017 SUBARU OUTBACK. THE CONTACT STATED THE VEHICLE BATTERY DRAINED PREMATURELY. THE VEHICLE EMITTED A CLICKING SOUND AFTER THE VEHICLE WAS DRIVEN. THE VEHICLE WAS TAKEN TO ISLAND SUBARU (111 QUINTARD STREET, STATEN ISLAND NY, 10305, (718) 697-6000 ON SEVERAL OCCASIONS DUE TO THE BATTERY FAILURE. THE BATTE…
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TL* THE CONTACT OWNS A 2017 SUBARU OUTBACK. THE CONTACT STATED THE VEHICLE BATTERY DRAINED PREMATURELY. THE VEHICLE EMITTED A CLICKING SOUND AFTER THE VEHICLE WAS DRIVEN. THE VEHICLE WAS TAKEN TO ISLAND SUBARU (111 QUINTARD STREET, STATEN ISLAND NY, 10305, (718) 697-6000 ON SEVERAL OCCASIONS DUE TO THE BATTERY FAILURE. THE BATTERY WAS REPLACED BUT FAILED TO FIX THE ISSUE. THE CONTACT WAS INFORMED THAT THE VEHICLE SHOULD BE DRIVEN MORE TO ALLOW THE BATTERY TO BE RECHARGED DUE TO COMPUTERS IN THE VEHICLE CONSTANTLY RUNNING EVEN WHILE THE VEHICLE WAS PARKED AND IDLE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS CONTACTED AND INFORMED OF THE FAILURE. THE FAILURE MILEAGE WAS 8,003.
DEFECTIVE ELECTRICAL SYSTEM CAUSING BATTERY DISCHARGE AND GOING DEAD. BATTERY NEEDS REPLACED AND KEEPS GOING DEAD.
I AM 1 OF MANY OWNERS WITH THE SAME ISSUE WITH THE ELECTRICAL RENDERING A DEAD BATTERY. REPLACING BATTERY AND CONSTANTLY CHARGING AT THIS POINT IS THE ONLY WAY TO GET YOUR VEHICLE TO RUN. AT THIS POINT THE BATTERY IS DEAD EVERY MORNING IN THE GARAGE. *TR
MY WINDSHIELD HAS CRACKED WITHOUT BEING HIT BY ANYTHING ACROSS THE BOTTOM NEAR THE WIPERS. MY BATTERY CONTINUES TO DIE FOR NO REASON THAT I CAN FIND, EVEN AFTER I HAVE REPLACED IT. I DON'T LEAVE THE LIGHTS ON OR ANYTHING AND I CAN COME BACK TO MY CAR AND I HAVE TO JUMP IT. I HAVE ALSO BEEN IN IT AFTER DRIVING IT, STOPPED AND T…
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MY WINDSHIELD HAS CRACKED WITHOUT BEING HIT BY ANYTHING ACROSS THE BOTTOM NEAR THE WIPERS. MY BATTERY CONTINUES TO DIE FOR NO REASON THAT I CAN FIND, EVEN AFTER I HAVE REPLACED IT. I DON'T LEAVE THE LIGHTS ON OR ANYTHING AND I CAN COME BACK TO MY CAR AND I HAVE TO JUMP IT. I HAVE ALSO BEEN IN IT AFTER DRIVING IT, STOPPED AND TURNED THE CAR OFF AND LISTENED TO THE RADIO AND 10 MINUTES LATER I GO TO TURN THE CAR BACK ON AND IT'S COMPLETELY DEAD. AFTER I GET IT GOING THE GATE WILL BEEP CONTINUOUSLY WHILE IT IS STILL CLOSED AND I HAVE TO RESET THE WHOLE VEHICLE TO GET THE BEEPING TO STOP. I TOOK IT TO GET CHECKED AND THEY TOLD ME TO REPLACE THE BATTERY. WHEN I GOT THE BATTERY CHECKED FOR POWER NOTHING SEEMED TO BE WRONG WITH THE BATTERY. AND YET THIS CONTINUES TO HAPPEN.
AT 35 MONTHS, THE ORIGINAL BATTERY IN MY OUTBACK SUDDENLY DIED AND WOULD NOT START THE CAR. I CAN JUMP START THE VEHICLE. AFTER JUMPING THE VEHICLE AND DRIVING AROUND FOR 30 MINUTES, THINGS SEEMED OK & THE CAR STARTED 2 HOURS AFTER BEING DRIVEN. THE NEXT MORNING HOWEVER, IT WAS TOTALLY DEAD. SUBARU SERVICE TOLD ME I NEEDED T…
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AT 35 MONTHS, THE ORIGINAL BATTERY IN MY OUTBACK SUDDENLY DIED AND WOULD NOT START THE CAR. I CAN JUMP START THE VEHICLE. AFTER JUMPING THE VEHICLE AND DRIVING AROUND FOR 30 MINUTES, THINGS SEEMED OK & THE CAR STARTED 2 HOURS AFTER BEING DRIVEN. THE NEXT MORNING HOWEVER, IT WAS TOTALLY DEAD. SUBARU SERVICE TOLD ME I NEEDED TO DRIVE IT AT HIGHWAY SPEEDS FOR AT LEAST 45 MINUTES. SO, I JUMPED IT AGAIN AND DROVE THE VEHICLE FOR 2 HOURS AT HIGHWAY SPEED. SHORTLY AFTER I RETURNED FROM THIS TRIP, I HAD THE BATTERY TESTED AT AN AUTO PARTS STORE. I WAS TOLD BATTERY AND ALTERNATOR WERE OK, BUT IT STILL NEEDED CHARGING. THE CAR DID START ABOUT 6 HOURS AFTER RETURNING FROM THIS TRIP. HOWEVER, THE NEXT MORNING THE BATTERY WAS TOTALLY DEAD. I'M CURRENTLY TRYING TO WORK THROUGH THIS WITH A SUBARU DEALERSHIP, AND HAVE AN APPOINTMENT IN 2 WEEKS. IN THE MEANTIME, WILL TRY TO KEEP THE OUTBACK IN SERVICE WITH A TRICKLE CHARGER, AND JUMP STARTS AS NECESSARY. *TR
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