BATTERY DIED AT 22928 MILES AND LESS THAN 2 YEARS. DEALER REPLACED, BUT 18 MONTHS LATER, AND SEVERAL JUMP STARTS, WE TOOK IT BACK TO THE DEALER. NOW, OUT OF WARRANTY, WE SPENT $673 TO REPLACE A DEFECTIVE CIRCUIT BOARD THAT WAS DRAINING THE BATTERY.
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.
What owners actually said
917 reportsBATTERY HAS DIED AT LEAST 5 TIMES. ENOUGH TO WHERE I BOUGHT MY OWN JUMP START BATTERY. THE FIRST TIME I HAD TO JUMP IT WAS JUST OVER A YEAR OLD, SO I BROUGHT IT INTO SUBARU AND THEY REPLACED THE BATTERY FREE OF CHARGE. FROM THAT POINT ON WHEN THE BATTERY DIED I HAD IT JUMPED BY A TOW. NEARING THE END OF MY LEASE THE VEHICLES…
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BATTERY HAS DIED AT LEAST 5 TIMES. ENOUGH TO WHERE I BOUGHT MY OWN JUMP START BATTERY. THE FIRST TIME I HAD TO JUMP IT WAS JUST OVER A YEAR OLD, SO I BROUGHT IT INTO SUBARU AND THEY REPLACED THE BATTERY FREE OF CHARGE. FROM THAT POINT ON WHEN THE BATTERY DIED I HAD IT JUMPED BY A TOW. NEARING THE END OF MY LEASE THE VEHICLES BATTERY WAS DATE DECEMBER OF 2018. I ATTEMPTED TO HAVE IT JUMPED THIS MORNING, 11/7/2020, AND I WAS TOLD IT WAS COMPLETELY DEAD THIS TIME. WHILE I WAS ATTEMPTING TO HAVE ROADSIDE ASSISTANCE JUMP THE VEHICLE, I HEARD THE TAIL GATE TRYING TO ENGAGE AND THEN IT FAILED TO START. IT SEEMS LIKE THE TAILGATE WAS DRAINING THE BATTERY TRYING TO OPEN OR CLOSE, BUT IT WASN'T USED WHEN I GOT HOME.
ASCENT DEAD BATTERY ISSUE. PARASITIC POWER DRAW THAT DRAINS BATTERY SIGNIFICANTLY WHEN PARKED OR SHORT USE. SUBARU TESTED BUT WOULD NOT ACKNOWLEDGE THE FAULT. I KNOW NEED TO USE A TRICKLE CHARGER ALL THE TIME WHEN PARKED. 2 BATTERIES IMPACTED IN THE 8 MONTH COVID19 TIMEFRAME AND IN UNDER 36K MILE USE. NEITHER REPLACED BY SUBARU.
THE CAR BATTERY WAS FOUND TO BE DEAD AFTER SITTING FOR AT LEAST 2 DAYS, ON 3 DIFFERENT OCCASIONS BEFORE BEING REPLACED ON 1/8/2020. AFTER BEING REPLACED THE SAME PROBLEM KEPT HAPPENING. THE NEW BATTERY WAS TAKEN BACK TO THE PLACE OF PURCHASE WHERE IT WAS TESTED AND FOUND TO BE IN GOOD WORKING ORDER. SINCE BEING REPLACED THE SAME…
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THE CAR BATTERY WAS FOUND TO BE DEAD AFTER SITTING FOR AT LEAST 2 DAYS, ON 3 DIFFERENT OCCASIONS BEFORE BEING REPLACED ON 1/8/2020. AFTER BEING REPLACED THE SAME PROBLEM KEPT HAPPENING. THE NEW BATTERY WAS TAKEN BACK TO THE PLACE OF PURCHASE WHERE IT WAS TESTED AND FOUND TO BE IN GOOD WORKING ORDER. SINCE BEING REPLACED THE SAME CONDITION KEEPS HAPPENING, AT LEAST 4 MORE TIME , MOST RECENT AS 11/3/2020. EACH TIME THE VEHICLE SAT IN OUR DRIVEWAY FOR 2 TO 3 DAYS NOT BEING USED
BATTERY ISSUES ARE NON STOP! BATTERY DIES ALL THE TIME. WE HAD A NEW 2016 OUTBACK PREVIOUSLY, THAT HAD TO BE TOWED BECAUSE IT WOULD JUST DIE. WE TRADED IT IN FOR A NEW 2017 OUTBACK AND IT'S EVEN WORSE. BATTERY HAS BEEN REPLACED (NOT SURE HOW MANY TIMES), AND ISSUE IS STILL THE SAME. LEAVES US STUCK/STRANDED IN RANDOM PLACES, AND…
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BATTERY ISSUES ARE NON STOP! BATTERY DIES ALL THE TIME. WE HAD A NEW 2016 OUTBACK PREVIOUSLY, THAT HAD TO BE TOWED BECAUSE IT WOULD JUST DIE. WE TRADED IT IN FOR A NEW 2017 OUTBACK AND IT'S EVEN WORSE. BATTERY HAS BEEN REPLACED (NOT SURE HOW MANY TIMES), AND ISSUE IS STILL THE SAME. LEAVES US STUCK/STRANDED IN RANDOM PLACES, AND BACK HATCH WILL SOMETIMES BEEP NON STOP EVEN THOUGH IT'S COMPLETELY CLOSED. WE HAVE TO KEEP AN EMERGENCY JUMP KIT WITH US CONSTANTLY. THE BACK HATCH WON'T OPEN WHEN BATTERY IS DEAD/LOW, WHICH IS CRAZY THAT THERE ISN'T SOME TYPE OF OVERRIDE TO THIS. I HAVE SEEN COUNTLESS BATTERY ISSUES FOR THIS VEHICLE AND I'M BEYOND SHOCKED THAT THIS HASN'T BEEN FIXED/ADDRESSED BY SUBARU. WE ARE FED UP WITH THE BATTERY DRAIN, AND DO EVERYTHING WE CAN SO WE CAN (HOPEFULLY) PROACTIVELY START OUR VEHICLE (HAVE ALL INTERIOR LIGHTS OFF, RADIO OFF, AIR OFF - ALL SYSTEMS POSSIBLE TURNED OFF). EVEN THAT DOESN'T ALWAYS WORK. WE SPEND EXTRA MONEY ON GAS JUST TO RECHARGE THE CAR BY DRIVING IT MORE MILES THAN WE WANT TO. I'M GONNA BE DONE WITH SUBARU AFTER THIS.
KEYS FREQUENTLY GET STUCK IN THE IGNITION DUE TO AN ELECTRICAL MALFUNCTION THAT CAUSES THE STEERING COLUMN TO BE UNABLE TO DETECT WHEN THE CAR IS PUT INTO PARK. THE ENTIRE GEARSHIFTERHAD TO BE REPLACED TO RESOLVE THE ISSUE. THIS IS A FREQUENT COMPLAINT FOR THIS MAKE AND MODEL AND IT SEEMS NUMEROUS COMPLAINTS HAVE BEEN FILED.
PREMATURE BATTERY FAILURE. REPLACED TWICE IN LAST 14 MONTHS. DOES NOT HOLD CHARGE PROPERLY. SEEMS TO BE EITHER UNDERPOWERED OR HAS UNIDENTIFIED DRAIN ON BATTERY.
TL* THE CONTACT OWNS A 2017 SUBARU OUTBACK. THE CONTACT STATED THAT THE VEHICLE WAS STATIONARY ON THE OUTSIDE OF THE GARAGE, WHEN HE NOTICED THAT THE WINDSHIELD WAS CRACKED. THE CONTACT CALLED A WINDSHIELD REPAIR SHOP AND HAD THE WINDSHIELD REPLACED REMOTELY AT HIS RESIDENCE. THE VEHICLE WAS NOT DIAGNOSED. A DEALER WAS NOT CONTA…
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TL* THE CONTACT OWNS A 2017 SUBARU OUTBACK. THE CONTACT STATED THAT THE VEHICLE WAS STATIONARY ON THE OUTSIDE OF THE GARAGE, WHEN HE NOTICED THAT THE WINDSHIELD WAS CRACKED. THE CONTACT CALLED A WINDSHIELD REPAIR SHOP AND HAD THE WINDSHIELD REPLACED REMOTELY AT HIS RESIDENCE. THE VEHICLE WAS NOT DIAGNOSED. A DEALER WAS NOT CONTACTED. THE MANUFACTURER HAD NOT BEEN INFORMED OF FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 45,800.
REAR DOOR (TRUNK) DOES NOT STOP CLOSING OR DOES NOT OPENING NOR BY BUTTON ON THE FRONT PANEL, NOR BY REMOTE. BATTERY IS GETTING DISCHARGED AFTER I STOP AND CLOSE IT. I HAVE TO KEEP THE JUMP STARTER BATTERY IN THE CAR AND USE IT EVERY WEEK, SOMETIMES - EVERY DAY. BATTERY ITSELF WAS TESTED GOOD SEVERAL TIMES (I'VE STARTED WITH IT)…
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REAR DOOR (TRUNK) DOES NOT STOP CLOSING OR DOES NOT OPENING NOR BY BUTTON ON THE FRONT PANEL, NOR BY REMOTE. BATTERY IS GETTING DISCHARGED AFTER I STOP AND CLOSE IT. I HAVE TO KEEP THE JUMP STARTER BATTERY IN THE CAR AND USE IT EVERY WEEK, SOMETIMES - EVERY DAY. BATTERY ITSELF WAS TESTED GOOD SEVERAL TIMES (I'VE STARTED WITH IT). ALL SURFACES AROUND END SWITCHES ARE CLEAN, THERE A RE NO ALARM INDICATION ABOUT OPEN DOOR. AT DEALERSHIP THEY CHARGED ME $80 BUT DID NOT FIND/HELP AT ALL.
2017 SUBARU OUTBACK. NOW ON BATTERY #6, THIRD ONE REPLACED SINCE FEBRUARY 2020. BATTERY EACH TIME WAS COMPLETELY DEAD, REQUIRING ROADSIDE SERVICE. DEALER REPLACES, SAYS THEY DO A SYSTEM ANALYSIS. ROADSIDE TOWING COMPANY EACH TIME TELLS ME THEY SEE LOTS OF ISSUES WITH 2016 - 2020 OUTBACKS. CONTACT WITH SUBARU I AM TOLD THERE ARE …
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2017 SUBARU OUTBACK. NOW ON BATTERY #6, THIRD ONE REPLACED SINCE FEBRUARY 2020. BATTERY EACH TIME WAS COMPLETELY DEAD, REQUIRING ROADSIDE SERVICE. DEALER REPLACES, SAYS THEY DO A SYSTEM ANALYSIS. ROADSIDE TOWING COMPANY EACH TIME TELLS ME THEY SEE LOTS OF ISSUES WITH 2016 - 2020 OUTBACKS. CONTACT WITH SUBARU I AM TOLD THERE ARE NO RECALLS. I WAS EVEN TOLD I NEEDED TO DRIVE THE CAR EVERY FEW DAYS. THAT IS RIDICULOUS. I HAVE NEVER HAD ANY ISSUES LIKE THIS WITH OTHER CARS IN MY 56 YEARS OF DRIVING. CAR WAS STATIONARY, FORTUNATELY AT OUR HOUSE SO I WAS NOT STRANDED WITH A DEAD BATTERY. DOING AN INTERNET SEARCH FOR COMPLAINTS ABOUT THIS I NOTED THERE WERE MANY COMPLAINTS EXPRESSED. BATTERY THAT CAME WITH THE CAR DEC 14, 2017 - NEW BATTERY ...DATE NOT RECORDED...NEW BATTERY FEB 3, 2020 - BATTERY REPLACED APRIL 6,2020 - BATTERY REPLACED OCT 26, 2020 - BATTERY REPLACED FILE ATTACHED WITH SERVICE REPORT FOR BATTERIES REPLACED IN 2020 FROM SUBARU DEALER
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