THE CAR DRAINS BATTERY RAPIDLY OVERNIGHT. THE IDLE CURRENT IS ABOUT 2 AMPS WHICH IS ABNORMAL
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 IS PREMATURELY DRAINING AND THIS HAS LEFT US STRANDED AND REQUIRING A JUMP START. THIS IS A SAFETY ISSUE FOR MY FAMILY. THE OEM BATTER FAILED AFTER 18 MONTHS. THE NEW BATTERY (WITH A 5 YEAR WARRANTY) HAS NOW FAILED AFTER ANOTHER 14 MONTHS. THIS IS NOT DUE TO LEAVING A LIGHT ON OR A DOOR OPEN. THE VEHICLE IS NOT …
Read full complaint
THE BATTERY IS PREMATURELY DRAINING AND THIS HAS LEFT US STRANDED AND REQUIRING A JUMP START. THIS IS A SAFETY ISSUE FOR MY FAMILY. THE OEM BATTER FAILED AFTER 18 MONTHS. THE NEW BATTERY (WITH A 5 YEAR WARRANTY) HAS NOW FAILED AFTER ANOTHER 14 MONTHS. THIS IS NOT DUE TO LEAVING A LIGHT ON OR A DOOR OPEN. THE VEHICLE IS NOT BEING LEFT PARKED FOR LONG PERIODS OF TIME. THIS IS A DAILY DRIVER VEHICLE.
BATTERY DIES..HAD NEW ONE INSTALLED THIS WEEK, SAME PROBLEM. NO RECALL? CANT USE CAR
>>>THIS INFORMATION IS IN ADDITION TO THE PREVIOUSLY FILED NHTSA SAFETY ISSUE ID 11415232 <<< IN MY PREVIOUS FILING, I DID FORGET TO INCLUDE ANOTHER ISSUE THAT I BELIEVE IS ALSO ASSOCIATED WITH THE ELECTRICAL PROBLEMS I HAVE EXPERIENCED WITH MY 2017 OUTBACK 2.5I TOURING VEHICLE. SO, ALONG WITH ALL OF THE FAILURES EXPERIENC…
Read full complaint
>>>THIS INFORMATION IS IN ADDITION TO THE PREVIOUSLY FILED NHTSA SAFETY ISSUE ID 11415232 <<< IN MY PREVIOUS FILING, I DID FORGET TO INCLUDE ANOTHER ISSUE THAT I BELIEVE IS ALSO ASSOCIATED WITH THE ELECTRICAL PROBLEMS I HAVE EXPERIENCED WITH MY 2017 OUTBACK 2.5I TOURING VEHICLE. SO, ALONG WITH ALL OF THE FAILURES EXPERIENCED AND DISCUSSED IN FILING #11415232, A HANDFUL OF TIMES, I HAVE ALSO EXPERIENCED THAT THE FRONT PASSENGER-SIDE WINDOW WOULD NOT WORK WHEN ATTEMPTING TO OPEN OR CLOSE IT FROM THE DRIVER-SIDE CONTROL. BUT I DO WANT TO POINT OUT THAT THE WINDOW WOULD OPEN AND CLOSE WHEN I USED THE WINDOW CONTROLLER LOCATED ON THE PASSENGER SIDE DOOR. THANK YOU FOR ALLOWING ME TO ADD-ON TO MY PREVIOUS COMPLAINT.
I BELIEVE ALL OF THE FOLLOWING CIRCUMSTANCES TO BE CAUSED BY AN ELECTRICAL PROBLEM: DEC.31, 2020: CAR HESITATES TO START. IT NEVER TURNS OVER SO IT DOES NOT EVER START. WE INSTALL NEW BATTERY & CAR STARTS. MID-JAN.2021: CAR WON'T START FROM PUSH START, BUT DOES START WHEN I USE MY REMOTE START KEY FOB. AFTER THAT, CAR STAR…
Read full complaint
I BELIEVE ALL OF THE FOLLOWING CIRCUMSTANCES TO BE CAUSED BY AN ELECTRICAL PROBLEM: DEC.31, 2020: CAR HESITATES TO START. IT NEVER TURNS OVER SO IT DOES NOT EVER START. WE INSTALL NEW BATTERY & CAR STARTS. MID-JAN.2021: CAR WON'T START FROM PUSH START, BUT DOES START WHEN I USE MY REMOTE START KEY FOB. AFTER THAT, CAR STARTS WITH PUSH START. FEB.-APRIL 2021: CAR HAS A SEVERAL TIMES WHEN IT HESTITATES TO START, BUT ULTIMATELY IT DOES START. MAY 1-3 2021: CAR HESITATES TO START, BUT ULTIMATELY STARTS. MAY 4-5 2021: CAR NOT ONLY HESITATES TO START, BUT NOW I HAVE ALL KINDS OF LIGHTS LIT UP ON MY DASH, INCLUDING CHECK ENGINE, EYESIGHT, X-MODE LIGHT IS FLASHING, AND SEVERAL OTHERS THAT I CANNOT GET TO TURN OFF. IN ALL INSTANCES, VEHICLE WAS STATIONARY AND TURNED OFF. I HAVE PHOTOS & VIDEO BUT CAN'T SEEM TO REDUCE FILE SIZE TO REQUIRED 5MB. SIDE NOTE: UNLESS I AM AT WORK OR RUNNING ERRANDS, MY CAR IS ALWAYS IN THE GARAGE.
SOMETHING (ELECTRICAL ISSUE?) IS DRAINING THE CAR BATTERY AND NEEDS A JUMP IF NOT DRIVEN WITHIN A DAY OR TWO. WE REPLACED THE BATTERY TWICE WITHIN A YEAR THINKING WE HAD A DEFECTIVE BATTERY, BUT PROBLEM STILL PERSISTS. WE TOOK THE CAR TO A MECHANIC THINKING IT COULD BE THE ALTERNATOR, BUT THAT WAS NOT THE ISSUE.
BATTERY FAILURE AFTER 6 MONTHS UNDER NORMAL USE. NO PERIODS OF LEAVING HEADLIGHTS ON OVERNIGHT, ETC. HAD JUST DRIVEN ABOUT 90 MINUTES, TURNED CAR OFF TO RUN INTO A SHOP, RETURNED AND CAR WOULDN'T EVEN CRANK. AAA TESTED IT AND THE ALTERNATOR. ALTERNATOR WAS 'GOOD' BUT BATTERY REPORTED 'FAIL'.
WITH ALL ITEMS OFF THE ELECTRICAL SYSTEM IN THE VEHICLE DRAINS THE BATTERY IN A SHORT TIME. I HAVE INSTALLED A SWITCH ON THE BATTERY TO OPEN CIRCUIT SO THE BATTERY DOESN'T DRAIN WHILE PARKED. THIS PREVENTS ME FROM BEING STRANDED AGAIN WHEN THE VEHICLE IS PARKED.WHEN I RETURN TO THE VEHICLE I SWITCH BACK TO CLOSED BATTERY CIRCU…
Read full complaint
WITH ALL ITEMS OFF THE ELECTRICAL SYSTEM IN THE VEHICLE DRAINS THE BATTERY IN A SHORT TIME. I HAVE INSTALLED A SWITCH ON THE BATTERY TO OPEN CIRCUIT SO THE BATTERY DOESN'T DRAIN WHILE PARKED. THIS PREVENTS ME FROM BEING STRANDED AGAIN WHEN THE VEHICLE IS PARKED.WHEN I RETURN TO THE VEHICLE I SWITCH BACK TO CLOSED BATTERY CIRCUIT. I NOW CAN START THE CAR AND I AM NOT STRANDED. THIS PROVES TO ME THAT THERE IS A PROBLEM WITH THE ELECTRICAL SYSTEM DRAWING TOO MUCH CURRENT WHEN VEHICLE IS PARKED WITH NO ITEMS ON IN THE VEHICLE. IF YOU WANT I WILL PROVIDE THE CURRENT FLOW WHEN VEHICLE IS OFF AND PARKED. THIS IS A REAL PROBLEM AND I WILL PROVIDE ANY INFORMATION THAT YOU WANT. I APPRECIATE YOUR ACTION ON THIS PROBLEM.
BATTERY DRAINS PREMATURELY? I'VE HAD TO HAVE IT JUMP STARTED 3 TIMES IN THE PAST COUPLE WEEKS. HAD IT CHECKED OUT & BATTERY, ALTERNATOR, AND STARTER ARE FINE. BATTERY JUST DEAD IN THE DRIVEWAY IN THE MORNING. ROADSIDE ASSIST GUY RECOMMENDED FILING A REPORT BECAUSE HE'D HEARD OTHERS HAD HAD PROBLEMS, TOO, POSSIBLY WITH BACK HATCH…
Read full complaint
BATTERY DRAINS PREMATURELY? I'VE HAD TO HAVE IT JUMP STARTED 3 TIMES IN THE PAST COUPLE WEEKS. HAD IT CHECKED OUT & BATTERY, ALTERNATOR, AND STARTER ARE FINE. BATTERY JUST DEAD IN THE DRIVEWAY IN THE MORNING. ROADSIDE ASSIST GUY RECOMMENDED FILING A REPORT BECAUSE HE'D HEARD OTHERS HAD HAD PROBLEMS, TOO, POSSIBLY WITH BACK HATCH NOT CLOSING PROPERLY CAUSING DOME LIGHTS TO STAY ON AND DRAIN BATTERY. DID FIND BACK DOME LIGHT ON 1 NIGHT, TURNED OFF LIGHT, AND RECLOSED HATCH. I FEEL LIKE I'VE BEEN DILIGENT SINCE BUT IT WAS DEAD AGAIN THIS MORNING ANYWAY. DATE LISTED BELOW IS MOST RECENT INCIDENT. PREVIOUS 2 INCIDENTS WERE ABOUT A WEEK AGO AND ABOUT 2-3 DAYS APART.
IN 2018 THE BATTERY KEPT DYING AND HAD GO BE REPLACED. NOW, IN 2012, THE SAME THING IS HAPPENING AGAIN. IT HAD TO BE JUMPED OFF YESTERDAY MORNING, AGAIN THIS MORNING AND NOW THIS EVENING IS DEAD AGAIN. THE CAR ONLY HAS A VERY LITTLE OVER 32,000 ACTUAL MILES ON IT. THE VEHICLE IS KEOPT IN THE GARAGE ALL THE TIME AND THIS IS WHERE…
Read full complaint
IN 2018 THE BATTERY KEPT DYING AND HAD GO BE REPLACED. NOW, IN 2012, THE SAME THING IS HAPPENING AGAIN. IT HAD TO BE JUMPED OFF YESTERDAY MORNING, AGAIN THIS MORNING AND NOW THIS EVENING IS DEAD AGAIN. THE CAR ONLY HAS A VERY LITTLE OVER 32,000 ACTUAL MILES ON IT. THE VEHICLE IS KEOPT IN THE GARAGE ALL THE TIME AND THIS IS WHERE IT IS AS IT IS DYING.
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