NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
510 reports65,000 miles · Nov 16, 2018
EngineUnknown Or OtherInjury
EXHAUST SYSTEM ISSUE. EXHAUST MAINFOLD LEAK AT CATALYST CONVERTER. FOR OUR OUTBACK WE NOTICED A SIGNIFICANT LEVELS OF EXHAUST FUMES IN PASSENGER CABIN. THEY WERE NO INDICATION OF FAILURE OF EXHAUST SYSTEM OR CATALYST CONVERTER ON THE CAR. BUT WE ARE GETTING SOME MUCH FUMES SMELL WHEN WE STOPPED AT THE TRAFFIC SIGNAL OR PARKING …
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EXHAUST SYSTEM ISSUE. EXHAUST MAINFOLD LEAK AT CATALYST CONVERTER. FOR OUR OUTBACK WE NOTICED A SIGNIFICANT LEVELS OF EXHAUST FUMES IN PASSENGER CABIN. THEY WERE NO INDICATION OF FAILURE OF EXHAUST SYSTEM OR CATALYST CONVERTER ON THE CAR. BUT WE ARE GETTING SOME MUCH FUMES SMELL WHEN WE STOPPED AT THE TRAFFIC SIGNAL OR PARKING LOT. IT ALL MOST MADE US SICK. LUCKILY I GOT IT CHECKED AT THE SERVICE CENTER AND THEY FIND THE LEAK. THIS IS POTENTIALLY A VERY RISKY THING FOR PEOPLE WHO DON'T NOTICE THE SMELL MIGHT GET SLOW POISONED WITH CARBON MONOXIDE OR OTHER ELEMENTS IN EXHAUST FUMES. THERE MAY BE DIRECT INJURY FROM THIS ISSUE BUT AS I SAID I WAS ALMOST GOT SICK BECAUSE OF FUMES. FOR PEOPLE WITH PZEV VEHICLE, THE EXHAUST SYSTEM IS COVERED UNDER WARRANTY. PLEASE BRING THIS ISSUE WITH MANUFACTURING. FOR PEOPLE OUT THERE IF YOU NOTICE A LOUD EXHAUST NOTE AT START OF YOUR VEHICLE OR SMALL RATTLING NOISE WHEN WE YOU ACCELERATE AFTER A COMPLETE STOP, IT MIGHT BE YOUR EXHAUST SYSTEM, PLEASE GET IT CHECKED AS SOON AS POSSIBLE. PS ATTACHED IS THE DIAGNOSIS REPORT FROM DEALER SERVICE CENTER BE SAFE OUT THERE !! THANK YOU.
NHTSA ODI #11152117
Mileage unknown · Nov 8, 2018
Service Brakes
I'VE HAVING BREAK PROBLEMS WITH THIS CAR SINCE I FIRST BOUGHT USED. PRE OWNED CERTIFIED WITH THE DEALERSHIP. I'VE TOOK THE CAR IN A COUPLES SAYING THE BREAKS MAKE LOUD SQUEAKING NOISE AND PULSING EVERY TIME I HIT THE BREAK AND SOMETIMES DOESN'T STOP IMMEDIATELY. 'SCARY SITUATION'. THE SERVICE GUY LOOKS AT IT AND ALWAYS SAYS NOTH…
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I'VE HAVING BREAK PROBLEMS WITH THIS CAR SINCE I FIRST BOUGHT USED. PRE OWNED CERTIFIED WITH THE DEALERSHIP. I'VE TOOK THE CAR IN A COUPLES SAYING THE BREAKS MAKE LOUD SQUEAKING NOISE AND PULSING EVERY TIME I HIT THE BREAK AND SOMETIMES DOESN'T STOP IMMEDIATELY. 'SCARY SITUATION'. THE SERVICE GUY LOOKS AT IT AND ALWAYS SAYS NOTHING WRONG WITH IT. I TAKE IT BACK AND IT'S REPEAT ALL OVER AGAIN WITH SUPPOSEDLY NOTHING WRONG WITH THE BREAKS. I GAVE UP ON PLANET SUBARU DEALERSHIP AND DECIDED TO CHANGE THE BREAKS MYSELF TO SEE IF THAT CORRECT THE ISSUE. NOPE IT DIDN'T CORRECT THE ISSUE. MY BREAKS ARE STILL PULSING AND MAKING A LOUD SQUEAKING NOISE. I PUT NOISE FREE ON THE BREAKS AND STILL NOT HELPING, WHEN THE BREAKS START TO PULSES, THE BREAK GETS TIGHT AND WON'T STOP IMMEDIATELY. WINTER IS COMING AND I'M SURE THIS WILL BE THE DEATH OF ME. SUBARU NEEDS TO FIX THIS ISSUES. I'M SURE THERE WILL BE MORE COMPLAINTS REGARDING THIS SOON. SUBARU CARS ARE NOT RELIABLE ANYMORE. I'M SCARED DRIVING THIS CAR WITH MY BREAK PROBLEMS AND SUBARU NOT WANTING TO FIX THE ISSUES. PURCHASED THE CAR APRIL 2018 AND NOW IT'S NOVEMBER 2018. THE LAST 7 MONTHS OF CONTINUOUS BREAK PROBLEMS.. I DON'T KNOW WHAT TODO. SUBARU BREAKS AREN'T CHEAP TO FIX MYSELF. THEY SHOULD STAND BEHIND THERE PRODUCT AND FIX IT.
NHTSA ODI #11150227
25,000 miles · Nov 5, 2018
Structure
REAR HATCH DOES NOT RELIABLY OPEN - CANNOT CLOSE AFTER MANUAL OVERRIDE. VEHICLE HAS HAD ISSUE FOR OVER 15000 MILES AND 5 TIMES AT THE DEALER BUT HAS NOT BEEN RESOLVED. REAR HATCH DOES NOT OPEN RELIABLY AND WHEN A MANUAL OVERRIDE IS NECESSARY TO REMOVE CARGO OR PETS, THE HATCH DOES NOT CLOSE EASILY AND DOOR LIGHT REMAINS ON EVEN…
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REAR HATCH DOES NOT RELIABLY OPEN - CANNOT CLOSE AFTER MANUAL OVERRIDE. VEHICLE HAS HAD ISSUE FOR OVER 15000 MILES AND 5 TIMES AT THE DEALER BUT HAS NOT BEEN RESOLVED. REAR HATCH DOES NOT OPEN RELIABLY AND WHEN A MANUAL OVERRIDE IS NECESSARY TO REMOVE CARGO OR PETS, THE HATCH DOES NOT CLOSE EASILY AND DOOR LIGHT REMAINS ON EVEN WHILE DRIVING. THIS CAUSES AND OBVIOUS SAFETY ISSUE BOTH FOR CARGO ESCAPING THE VEHICLE AND ALSO FOR EXHAUST ENTERING THE VEHICLE. THIS OCCURS WITH ALL DOORS UNLOCKED, VEHICLE IS STOPPED, KEY FOB IS ATTEMPTED AS WELL AS DOOR TRIGGER TO OPEN THE HATCH. NO MEMORY SET WHEN ATTEMPTING TO OPEN. NO USER ERROR.
NHTSA ODI #11149577
500,000 miles · Oct 5, 2018
Unknown Or Other
THE PIPES THAT CONNECT TO MANIFOLD TO MUFFLER NEED TO BE REPLACED AFTER 50,000 MILES. SUBARU SAID THIS IS NOT COVERED UNDER WARRANT, BECAUSE IT IS NOT THE MANIFOLD.
NHTSA ODI #11133523
67,000 miles · Sep 25, 2018
Fuel/propulsion System
FUEL GAS DOOR STICKS AND WILL NOT OPEN
NHTSA ODI #11131623
70,000 miles · Aug 22, 2018
Visibility/wiper
WE CAME OUT TO FIND A 6-8 INCH CRACK LINE EMANATING FROM THE TOP RIGHT PASSENGER SIDE ONE MORNING. WE DROVE IT 5 MILES AFTER THAT AND WHEN WE CAME OUT IT HAD TRAVELLED AT A 45 DEGREE ANGLE TOWARDS THE MIDDLE OF THE WINDSHIELDS DRIVER SIDE. BY THE TIME WE GOT HOME IT HAD MOVED HALFWAY THROUGH THE GLASS AND ENDED IN A "J" AT THE M…
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WE CAME OUT TO FIND A 6-8 INCH CRACK LINE EMANATING FROM THE TOP RIGHT PASSENGER SIDE ONE MORNING. WE DROVE IT 5 MILES AFTER THAT AND WHEN WE CAME OUT IT HAD TRAVELLED AT A 45 DEGREE ANGLE TOWARDS THE MIDDLE OF THE WINDSHIELDS DRIVER SIDE. BY THE TIME WE GOT HOME IT HAD MOVED HALFWAY THROUGH THE GLASS AND ENDED IN A "J" AT THE MIDDLE OF THE WINDSHIELD. THIS WILL BE MY THIRD WINDSHIELD REPLACEMENT! THE FIRST WAS A RECALL. THE SECOND REPLACEMENT WAS FROM THE TEENIEST PING FROM A CAR ON THE FREEWAY AND NOW THIS IS THE THIRD REPLACEMENT! THIS IS MY FIRST SUBARU. WE HAVE ALWAYS BOUGHT TOYOTA IN THE PAST. I REMEMBER ONE INCIDENT ON THE FREEWAY FROM A TRUCK HITTING THE RAV 4 AND IT WAS AN ISOLATED HOLE THAT WE COULD HAVE FILLED, NOT REPLACED! DO I REALLY HAVE TO HAVE A NEW WINDSHIELD EVERY YEAR?! THIS IS RIDICULOUS. I E-MAILED SUBARU THREE DAYS AGO AND HAVE HAD NO RESPONSE.
NHTSA ODI #11121568
45,000 miles · Aug 16, 2018
Power Train
TRANSMISSION FAILURE. IT IS A KNOWN ISSUE WITH MODELS WITH THEIR ORIGINAL CVT TRANSMISSION, BUT RATHER THAN ISSUE A RECALL, THEY'RE EXTENDING WARRANTIES AND FIXING AS THEY BREAK. THIS LEFT ME WITH NO POWER ON A STATE HIGHWAY THAT HAD SPEED LIMITS OF 75MPH. I MANAGED TO MAKE IT TO THE SHOULDER TO BE STRANDED FOR AN HOUR WAITING F…
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TRANSMISSION FAILURE. IT IS A KNOWN ISSUE WITH MODELS WITH THEIR ORIGINAL CVT TRANSMISSION, BUT RATHER THAN ISSUE A RECALL, THEY'RE EXTENDING WARRANTIES AND FIXING AS THEY BREAK. THIS LEFT ME WITH NO POWER ON A STATE HIGHWAY THAT HAD SPEED LIMITS OF 75MPH. I MANAGED TO MAKE IT TO THE SHOULDER TO BE STRANDED FOR AN HOUR WAITING FOR A TOW TRUCK. THIS IS EXTREMELY UNSAFE AND IF IT'S A KNOWN ISSUE, I'M NOT SURE WHY THEY'RE NOT PREVENTING THESE SCENARIOS. I WAS GOING ABOUT 70MPH IN THE CENTER LANE OF A 3 LANE HIGHWAY WHEN SUDDENLY MY CAR JERKED AND THEN WOULDNT ACCELERATE.
NHTSA ODI #11120370
35,000 miles · Aug 1, 2018
Electrical System
I HAVE HAD 3 RADIOS REPLACED IN MY 2015 OUTBACK, SINCE 12-8-17 PROBLEMS INCLUDE , NAVIGATION GOING OUT, THE SIRIUSXM GOING OUT, NOW THE REPLACEMENT UNIT( BOTH REMANUFACTURED) HAS A 'CHIRP' SOUND COMING OUT OF IT WHEN DRIVING DOWN THE ROAD ON ALL CHANNELS. VERY DISTRACTING AS YOU LOOK DOWN AT THE DASH TO CHECK FOR WARNINGS, TAKIN…
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I HAVE HAD 3 RADIOS REPLACED IN MY 2015 OUTBACK, SINCE 12-8-17 PROBLEMS INCLUDE , NAVIGATION GOING OUT, THE SIRIUSXM GOING OUT, NOW THE REPLACEMENT UNIT( BOTH REMANUFACTURED) HAS A 'CHIRP' SOUND COMING OUT OF IT WHEN DRIVING DOWN THE ROAD ON ALL CHANNELS. VERY DISTRACTING AS YOU LOOK DOWN AT THE DASH TO CHECK FOR WARNINGS, TAKING YOUR EYES OFF THE ROAD.THIS REPLACEMENT UNIT IS LESS THAN A WEEK OLD( REPLACED ON 7-26-18. SUBARU CUSTOMER SERVICE CONTACTED 8-1-18. FIRST NOTICED ON 7-29-17.
NHTSA ODI #11115211
45,110 miles · Jul 25, 2018
Engine
EXCESSIVE OIL CONSUMPTION BETWEEN OIL CHANGE. WHEN THE VEHICLE REACHED TO 45,000 MILES, THE LOW OIL LIGHT IS ON LESS THAN 5,000 MILES BETWEEN OIL CHANGE. IF THE DRIVER IGNORE THE WARNING AND NOT ADD OIL TO THE VEHICLE, THE ENGINE CAN BE DAMAGES. A THREE YEARS OLD VEHICLE WITH 45,000 MILES SHOULD NOT HAVE TO CHANGE OIL FREQENTL…
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EXCESSIVE OIL CONSUMPTION BETWEEN OIL CHANGE. WHEN THE VEHICLE REACHED TO 45,000 MILES, THE LOW OIL LIGHT IS ON LESS THAN 5,000 MILES BETWEEN OIL CHANGE. IF THE DRIVER IGNORE THE WARNING AND NOT ADD OIL TO THE VEHICLE, THE ENGINE CAN BE DAMAGES. A THREE YEARS OLD VEHICLE WITH 45,000 MILES SHOULD NOT HAVE TO CHANGE OIL FREQENTLY. I SPOKE TO THE DEALER, THEY SAID THE OIL LEVEL IS NORMAL, AND OIL CONSUMPTION TEST IS NOT NEEDED. WHEN I TOOK THE CAR TO A CAR REPAIR SHOP, THEY TOLD ME THE OIL LEVEL IS LOWER THAN STANDARD BETWEEN OIL CHANGE. I ALSO CONTACTED SUBARU NORTH AMERICA, WAS TOLD THAT MY VEHICLE IS NOT COVERED BY THE CLASS ACTION SETTLEMENT, AND ONLY A VERY SMALL NUMBER OF CUSTOMERS HAVE IDENTIFIED A CONCERN ON THIS ISSUE.
NHTSA ODI #11113584
60,200 miles · Jul 23, 2018
Visibility/wiper
CAR WAS STATIONARY AND CRACKED FROM BOTTOM TO FORM 8 IN L SHAPE SAME AS THE LAST TIME THE WINDSHIELD WAS REPLACED 3 YEARS PRIOR
NHTSA ODI #11113190
Official recalls
5May 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.
Apr 27, 2016
Subaru of America, Inc. (Subaru) is recalling certain model year 2015 Legacy and Outback vehicles manufactured on July 20, 2015. The brake fluid used in these vehicles may contain excess moisture which may adversely affect the performance of the electronic stability control system. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 126, "Electronic Stability Control Systems."
Consequence & remedy
Consequence: Poor performance of the electronic stability control system when it is activated may result in a loss of vehicle control, increasing the risk of a crash.
Remedy: Subaru will notify owners, and dealers will perform an ABS activation, then flush and replace the brake fluid, free of charge. The recall began on May 20, 2016. Owners may contact Subaru customer service at 1-800-782-2783. Subaru's number for this recall is WTC-64.
Aug 10, 2015
Subaru of America, Inc. (Subaru) is recalling certain 2015 and 2016 model year Subaru Legacy 4-Door and Outback vehicles manufactured July 3, 2015, to July 27, 2015. Transmission oil may leak from a deformed seal cap on the propeller shaft yoke.
Consequence & remedy
Consequence: If the transmission oil leaks onto the exhaust pipe, there is a possible risk of fire.
Remedy: Subaru will notify owners, and dealers will replace the propeller shaft, free of charge. The recall began on August 28, 2015. Owners may contact 1-800-782-2783. Subaru's number for this recall is WQU-56.
Additional source detail variants (2)
Power Train:driveline:driveshaft
Subaru of America, Inc. (Subaru) is recalling certain 2015 and 2016 model year Subaru Legacy 4-Door and Outback vehicles manufactured July 3, 2015, to July 27, 2015. Transmission oil may leak from a deformed seal cap on the propeller shaft yoke.
Consequence: If the transmission oil leaks onto the exhaust pipe, there is a possible risk of fire.
Remedy: Subaru will notify owners, and dealers will replace the propeller shaft, free of charge. The recall began on August 28, 2015. Owners may contact 1-800-782-2783. Subaru's number for this recall is WQU-56.
Power Train:automatic Transmission
Subaru of America, Inc. (Subaru) is recalling certain 2015 and 2016 model year Subaru Legacy 4-Door and Outback vehicles manufactured July 3, 2015, to July 27, 2015. Transmission oil may leak from a deformed seal cap on the propeller shaft yoke.
Consequence: If the transmission oil leaks onto the exhaust pipe, there is a possible risk of fire.
Remedy: Subaru will notify owners, and dealers will replace the propeller shaft, free of charge. The recall began on August 28, 2015. Owners may contact 1-800-782-2783. Subaru's number for this recall is WQU-56.
Jun 12, 2015
Subaru of America, Inc. (Subaru) is recalling certain model year 2015 Legacy vehicles manufactured March 10, 2014, to April 16, 2015, Outback vehicles manufactured February 24, 2014, to April 16, 2015, Impreza vehicles manufactured September 9, 2014, to April 14, 2015, XV Crosstrek vehicles manufactured October 16, 2014, to April 15, 2015, and 2016 WRX vehicles manufactured March 23, 2015, and equipped with the Eyesight Driver Assist System. If the switch that activates the brake lights fails, the automatic pre-collision braking component of the driver assist system will not function.
Consequence & remedy
Consequence: If the automatic pre-collision braking system does not function as intended, the vehicle will not react to an obstacle in its path, increasing the risk of a crash.
Remedy: Subaru will notify owners, and dealers will reprogram the driver assist system, free of charge. The recall began on July 20, 2015. Owners may contact Subaru customer service at 1-800-782-2783. Subaru's number for this recall is WQS-54.
Additional source detail variants (2)
Forward Collision Avoidance: Crash Imminent Braking
Subaru of America, Inc. (Subaru) is recalling certain model year 2015 Legacy vehicles manufactured March 10, 2014, to April 16, 2015, Outback vehicles manufactured February 24, 2014, to April 16, 2015, Impreza vehicles manufactured September 9, 2014, to April 14, 2015, XV Crosstrek vehicles manufactured October 16, 2014, to April 15, 2015, and 2016 WRX vehicles manufactured March 23, 2015, and equipped with the Eyesight Driver Assist System. If the switch that activates the brake lights fails, the automatic pre-collision braking component of the driver assist system will not function.
Consequence: If the automatic pre-collision braking system does not function as intended, the vehicle will not react to an obstacle in its path, increasing the risk of a crash.
Remedy: Subaru will notify owners, and dealers will reprogram the driver assist system, free of charge. The recall began on July 20, 2015. Owners may contact Subaru customer service at 1-800-782-2783. Subaru's number for this recall is WQS-54.
Exterior Lighting:brake Lights:switch
Subaru of America, Inc. (Subaru) is recalling certain model year 2015 Legacy vehicles manufactured March 10, 2014, to April 16, 2015, Outback vehicles manufactured February 24, 2014, to April 16, 2015, Impreza vehicles manufactured September 9, 2014, to April 14, 2015, XV Crosstrek vehicles manufactured October 16, 2014, to April 15, 2015, and 2016 WRX vehicles manufactured March 23, 2015, and equipped with the Eyesight Driver Assist System. If the switch that activates the brake lights fails, the automatic pre-collision braking component of the driver assist system will not function.
Consequence: If the automatic pre-collision braking system does not function as intended, the vehicle will not react to an obstacle in its path, increasing the risk of a crash.
Remedy: Subaru will notify owners, and dealers will reprogram the driver assist system, free of charge. The recall began on July 20, 2015. Owners may contact Subaru customer service at 1-800-782-2783. Subaru's number for this recall is WQS-54.
Sep 19, 2014
Subaru of America, Inc. (Subaru) is recalling certain model year 2015 Outback vehicles manufactured January 22, 2014, to August 18, 2014, and equipped with a Subaru accessory trailer hitch assembly. During installation, the trailer hitch mounting nuts may have been overtightened, potentially resulting in failure of the trailer hitch mounting studs.
Consequence & remedy
Consequence: The mounting nut(s) may not provide sufficient force to remain attached to the studs or the studs themselves might break. If this were to happen while a trailer is being towed, the driver might not be able to operate the vehicle as desired or the trailer may detach from the vehicle. Either situation could increase the risk of a crash.
Remedy: Subaru will notify owners, and dealers will replace all eight mounting nuts for the trailer hitch assembly, and will inspect all eight mounting studs for damage, free of charge. The recall began on October 7, 2014. Owners may contact Subaru customer service at 1-800-782-2783. Subaru's number for this recall is WQN-50.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
1EA21002 · Desiccated Air Bag Inflator Rupture
Opened Sep 17, 2021 · No close date supplied
Status: open (inferred from source dates) · Air Bags:frontal:driver Side:inflator Module; Air Bags:frontal:passenger Side:inflator Module
From 2000 through 2017, Takata produced millions of air bag inflators using two types of phase-stabilized ammonium nitrate ("PSAN") propellant -- propellant 2004 and propellant 2004L. After prolonged exposure to high temperature cycles and humidity, inflators using propellant 2004 can degrade, causing the propellant to burn too quickly when ignited. The rapid burning can cause the inflator to rupture during deployment, potentially causing serious or even fatal injury to vehicle occupants. See 2016 Blomquist Report at www.nhtsa.gov/sites/nhtsa.gov/files/documents/expert_report-hrblomquist.pdf.Consequently, all frontal inflators using propellant 2004 that do not contain a "desiccant" (a substance that traps and holds moisture) in US vehicles are under recall. These "non-desiccated" inflators either have been or are required to be replaced.In some cases, the remedy part for these recalled inflators was, or will be, an inflator using either propellant 2004 or 2004L that does contain a desiccant. None of these "desiccated" remedy parts (which were installed in older model year vehicles) are currently under recall for a degradation concern. Certain subsets of desiccated PSAN inflators using propellant 2004 for use as original equipment, however, have been recalled for a degradation concern. All Takata inflators produced with propellant 2004L contain desiccant, and none of these desiccated inflators using propellant 2004L are under recall for a degradation concern. There have been no reported field ruptures in any non-recalled desiccated PSAN inflators.It is understood that desiccants fully saturate at some threshold, at which point any additional moisture will not be captured. This means the degradation process observed in non-desiccated inflators using propellant 2004 may also occur in non-recalled desiccated inflators using propellant 2004, assuming additional moisture enters the inflator and high temperature cycling occurs. Based on available information, desiccant saturation can occur within the first five years in the worst environments, and the time required for full saturation is affected by multiple factors. While no present safety risk has been identified, further work is needed to evaluate the future risk of non-recalled desiccated inflators using propellant 2004.Three entities -- Takata (now known as TK Global), the Independent Testing Coalition, and Exponent -- have been studying the long-term behavior of Takata desiccated PSAN inflators using propellant 2004L (as well as 2004) in the presence of moisture and temperature cycling. The research efforts, which include development of predictive modeling techniques and field sample analysis, are ongoing. To date, none of the researchers have identified field evidence showing that propellant 2004L is undergoing a degradation process that leads to aggressive deployment and potential rupture. However, the time in service of such inflators remains short compared to that of the inflators using propellant 2004. Further study is needed to assess the long-term safety of desiccated inflators using propellant 2004L.The Office of Defects Investigation is opening this investigation to examine whether a safety defect related to propellant degradation exists in non-recalled desiccated PSAN frontal inflators manufactured by Takata. This investigation will require extensive information on Takata production processes and surveys of inflators in the field. Lists of recall actions that may have used desiccated PSAN inflators as remedy parts, as well as the makes and models originally manufactured with them, is available with the downloadable version of this document (see nhtsa.gov/recalls?nhtsaId=EA21002 -- note this information is subject to change/revision as the investigation proceeds). This investigation does not supersede EA15-001, which remains open.
Additional source detail variants (2)
Air Bags:frontal:driver Side:inflator Module
From 2000 through 2017, Takata produced millions of air bag inflators using two types of phase-stabilized ammonium nitrate ("PSAN") propellant -- propellant 2004 and propellant 2004L. After prolonged exposure to high temperature cycles and humidity, inflators using propellant 2004 can degrade, causing the propellant to burn too quickly when ignited. The rapid burning can cause the inflator to rupture during deployment, potentially causing serious or even fatal injury to vehicle occupants. See 2016 Blomquist Report at www.nhtsa.gov/sites/nhtsa.gov/files/documents/expert_report-hrblomquist.pdf.Consequently, all frontal inflators using propellant 2004 that do not contain a "desiccant" (a substance that traps and holds moisture) in US vehicles are under recall. These "non-desiccated" inflators either have been or are required to be replaced.In some cases, the remedy part for these recalled inflators was, or will be, an inflator using either propellant 2004 or 2004L that does contain a desiccant. None of these "desiccated" remedy parts (which were installed in older model year vehicles) are currently under recall for a degradation concern. Certain subsets of desiccated PSAN inflators using propellant 2004 for use as original equipment, however, have been recalled for a degradation concern. All Takata inflators produced with propellant 2004L contain desiccant, and none of these desiccated inflators using propellant 2004L are under recall for a degradation concern. There have been no reported field ruptures in any non-recalled desiccated PSAN inflators.It is understood that desiccants fully saturate at some threshold, at which point any additional moisture will not be captured. This means the degradation process observed in non-desiccated inflators using propellant 2004 may also occur in non-recalled desiccated inflators using propellant 2004, assuming additional moisture enters the inflator and high temperature cycling occurs. Based on available information, desiccant saturation can occur within the first five years in the worst environments, and the time required for full saturation is affected by multiple factors. While no present safety risk has been identified, further work is needed to evaluate the future risk of non-recalled desiccated inflators using propellant 2004.Three entities -- Takata (now known as TK Global), the Independent Testing Coalition, and Exponent -- have been studying the long-term behavior of Takata desiccated PSAN inflators using propellant 2004L (as well as 2004) in the presence of moisture and temperature cycling. The research efforts, which include development of predictive modeling techniques and field sample analysis, are ongoing. To date, none of the researchers have identified field evidence showing that propellant 2004L is undergoing a degradation process that leads to aggressive deployment and potential rupture. However, the time in service of such inflators remains short compared to that of the inflators using propellant 2004. Further study is needed to assess the long-term safety of desiccated inflators using propellant 2004L.The Office of Defects Investigation is opening this investigation to examine whether a safety defect related to propellant degradation exists in non-recalled desiccated PSAN frontal inflators manufactured by Takata. This investigation will require extensive information on Takata production processes and surveys of inflators in the field. Lists of recall actions that may have used desiccated PSAN inflators as remedy parts, as well as the makes and models originally manufactured with them, is available with the downloadable version of this document (see nhtsa.gov/recalls?nhtsaId=EA21002 -- note this information is subject to change/revision as the investigation proceeds). This investigation does not supersede EA15-001, which remains open.
Air Bags:frontal:passenger Side:inflator Module
From 2000 through 2017, Takata produced millions of air bag inflators using two types of phase-stabilized ammonium nitrate ("PSAN") propellant -- propellant 2004 and propellant 2004L. After prolonged exposure to high temperature cycles and humidity, inflators using propellant 2004 can degrade, causing the propellant to burn too quickly when ignited. The rapid burning can cause the inflator to rupture during deployment, potentially causing serious or even fatal injury to vehicle occupants. See 2016 Blomquist Report at www.nhtsa.gov/sites/nhtsa.gov/files/documents/expert_report-hrblomquist.pdf.Consequently, all frontal inflators using propellant 2004 that do not contain a "desiccant" (a substance that traps and holds moisture) in US vehicles are under recall. These "non-desiccated" inflators either have been or are required to be replaced.In some cases, the remedy part for these recalled inflators was, or will be, an inflator using either propellant 2004 or 2004L that does contain a desiccant. None of these "desiccated" remedy parts (which were installed in older model year vehicles) are currently under recall for a degradation concern. Certain subsets of desiccated PSAN inflators using propellant 2004 for use as original equipment, however, have been recalled for a degradation concern. All Takata inflators produced with propellant 2004L contain desiccant, and none of these desiccated inflators using propellant 2004L are under recall for a degradation concern. There have been no reported field ruptures in any non-recalled desiccated PSAN inflators.It is understood that desiccants fully saturate at some threshold, at which point any additional moisture will not be captured. This means the degradation process observed in non-desiccated inflators using propellant 2004 may also occur in non-recalled desiccated inflators using propellant 2004, assuming additional moisture enters the inflator and high temperature cycling occurs. Based on available information, desiccant saturation can occur within the first five years in the worst environments, and the time required for full saturation is affected by multiple factors. While no present safety risk has been identified, further work is needed to evaluate the future risk of non-recalled desiccated inflators using propellant 2004.Three entities -- Takata (now known as TK Global), the Independent Testing Coalition, and Exponent -- have been studying the long-term behavior of Takata desiccated PSAN inflators using propellant 2004L (as well as 2004) in the presence of moisture and temperature cycling. The research efforts, which include development of predictive modeling techniques and field sample analysis, are ongoing. To date, none of the researchers have identified field evidence showing that propellant 2004L is undergoing a degradation process that leads to aggressive deployment and potential rupture. However, the time in service of such inflators remains short compared to that of the inflators using propellant 2004. Further study is needed to assess the long-term safety of desiccated inflators using propellant 2004L.The Office of Defects Investigation is opening this investigation to examine whether a safety defect related to propellant degradation exists in non-recalled desiccated PSAN frontal inflators manufactured by Takata. This investigation will require extensive information on Takata production processes and surveys of inflators in the field. Lists of recall actions that may have used desiccated PSAN inflators as remedy parts, as well as the makes and models originally manufactured with them, is available with the downloadable version of this document (see nhtsa.gov/recalls?nhtsaId=EA21002 -- note this information is subject to change/revision as the investigation proceeds). This investigation does not supersede EA15-001, which remains open.
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