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2011 Toyota Sienna

Owner reports · Recalls · Investigations

More warning signs than most Sienna years

Owner complaints for the 2011 Toyota Sienna are substantially higher than the model-year median of 183.

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When problems were reported

Mileage at the reported incident

317 reports with mileage · 297 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.

  • Air Bags. Review the 211 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Structure. Review the 154 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 69 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

34 crash reports7 fire reports24 injury reports

Vehicle Speed Control complaints

20 reports
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Mileage unknown · Jul 29, 2024
Service BrakesStructureVehicle Speed ControlCrash

I was pulling my 2011 Toyota Siena into a parking space. My foot was on the brake and the car was going about 5 mph. The car made a slight sound, along with a perceptible yet small physical shift, and (while my foot was on the brake) independently accelerated with tremendous force. It was like it was ignited. The car hit a concr…

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I was pulling my 2011 Toyota Siena into a parking space. My foot was on the brake and the car was going about 5 mph. The car made a slight sound, along with a perceptible yet small physical shift, and (while my foot was on the brake) independently accelerated with tremendous force. It was like it was ignited. The car hit a concrete pole and was totaled. The acceleration over-rode the brake. No one was hurt. The concrete pole averted what could have been a catastrophic accident, had we hit pedestrians, or had we rear ended a car or truck on the freeway. The brakes failed as the car jumped into independent acceleration. My safety and the safety of my passenger were both at risk. As I said, in a different situation, we might have hit pedestrians, or gone through the wall of the grocery store and hit customers. The concrete pole saved us and others. The mechanic at the service center where the car was towed said it was impossible to discern if there had been a failure in the system of the car - though clearly both my passenger and myself experienced that failure in the car's ability to override an independent, forceful acceleration not caused by the driver. There was no warning of any kind. On the Edmunds site, there are many, many testimonials by other drivers of the Toyota Siena of similar, frightening experiences of independent acceleration. It is terribly dangerous and should be investigated. If there is not a recall on this vehicle, there should be. This is a potentially catastrophic defect.

NHTSA ODI #11605251

129,000 miles · Jan 16, 2019
Vehicle Speed ControlCrash

ON A SNOWY SATURDAY MORNING, MY HUSBAND WAS SLOWLY (DRIVING LESS THAN 5 MPH) PULLING INTO A PARKING SPOT WHILE BRAKING. AS HE SHIFTED INTO PARK, THE VEHICLE SUDDENLY REVVED AND ACCELERATED OVER THE FIVE INCH CURB AND HIT A BUILDING A FEW FEET IN FRONT OF THE CAR. HIS FOOT REMAINED FIRMLY ON THE BRAKE DURING THE INCIDENT. ALTHOUG…

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ON A SNOWY SATURDAY MORNING, MY HUSBAND WAS SLOWLY (DRIVING LESS THAN 5 MPH) PULLING INTO A PARKING SPOT WHILE BRAKING. AS HE SHIFTED INTO PARK, THE VEHICLE SUDDENLY REVVED AND ACCELERATED OVER THE FIVE INCH CURB AND HIT A BUILDING A FEW FEET IN FRONT OF THE CAR. HIS FOOT REMAINED FIRMLY ON THE BRAKE DURING THE INCIDENT. ALTHOUGH THE VEHICLE HAD COME TO A COMPLETE STOP ONCE IT HIT THE BUILDING AND WAS PUT INTO PARK, THE ENGINE CONTINUED TO MAKE A LOUD REVVING SOUND. THE REVVING DID NOT STOP UNTIL THE VEHICLE WAS TURNED OFF.

NHTSA ODI #11170463

20,000 miles · Feb 24, 2018
Vehicle Speed Control

VAN WAS PARKED ON A CITY STREET. I WAS TRYING TO PULL OUT OF A PARKING SPACE.I HAD MY FOOT ON THE BRAKE WHEN THE ENGINE REVVED UP AND LUNGED FORWARD. I HAD MY FOOT ON THE BRAKE, THE MAT WAS SECURED DOWN. I TOOK MY VAN IN TO HAVE THE TOYOTA DEALER CHECK. THEY COULDN'T FIND ANYTHING WRONG. THIS HAPPENED 3 DIFFERENT TIMES.

NHTSA ODI #11074603

63,000 miles · Oct 7, 2017
Vehicle Speed Control

WHILE STOPPED AT A STOP SIGN WITH MY FOOT ON THE BRAKE AND WAITING FOR TRAFFIC TO CLEAR, SUDDEN UNINTENDED ACCELERATION BEGAN. I LIFTED MY FOOT OFF THE BRAKE FOR A SPLIT SECOND AND THEN BRAKED HARD. THE ENGINE RETURNED TO IDLE. THIS WAS THE SECOND TIME THIS HAPPENED, THE FIRST BEING THREE WEEKS EARLIER, SHORTLY AFTER HAVING PO…

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WHILE STOPPED AT A STOP SIGN WITH MY FOOT ON THE BRAKE AND WAITING FOR TRAFFIC TO CLEAR, SUDDEN UNINTENDED ACCELERATION BEGAN. I LIFTED MY FOOT OFF THE BRAKE FOR A SPLIT SECOND AND THEN BRAKED HARD. THE ENGINE RETURNED TO IDLE. THIS WAS THE SECOND TIME THIS HAPPENED, THE FIRST BEING THREE WEEKS EARLIER, SHORTLY AFTER HAVING POWER SLIDING DOOR RECALL WORK PERFORMED. I AM CONVINCED THERE IS A DEFECT IN THE ELECTRONIC THROTTLE CONTROL SYSTEM. THERE IS NO OTHER REASONABLE EXPLANATION. I TOOK THE CAR TO MY DEALERSHIP AND THE DEALER SAID A TECHNICIAN FOUND ALL SYSTEMS OKAY AND NO ACTION WAS REQUIRED.

NHTSA ODI #11032185

114,000 miles · Oct 4, 2017
EngineVehicle Speed ControlCrashInjury

I PUT MY VEHICLE IN PARK AND THEN TURNED ON THE HAZARD LIGHTS, AS I WAS PARKED AT THE ENTRANCE TO A BUSY HIGHWAY, AND JUST WANTED TO GRAB MY MAIL. I TURNED AROUND FROM GETTING THE MAIL; AND MY MINIVAN WAS ROLLING ACROSS THE HIGHWAY WITH THREE OF MY CHILDREN INSIDE OF IT. IT STOPPED WHEN IT HIT A CEMENT BARRIER ON THE OTHER SIDE …

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I PUT MY VEHICLE IN PARK AND THEN TURNED ON THE HAZARD LIGHTS, AS I WAS PARKED AT THE ENTRANCE TO A BUSY HIGHWAY, AND JUST WANTED TO GRAB MY MAIL. I TURNED AROUND FROM GETTING THE MAIL; AND MY MINIVAN WAS ROLLING ACROSS THE HIGHWAY WITH THREE OF MY CHILDREN INSIDE OF IT. IT STOPPED WHEN IT HIT A CEMENT BARRIER ON THE OTHER SIDE OF THE HIGHWAY. NO AIR BAG DEPLOYED. MY CHILDREN SUFFERED FROM MINOR INJURIES. AND, A-LOT OF ANXIETY.WHAT HAPPENED TO MAKE MY MINIVAN SWITCH OUT OF PARK?

NHTSA ODI #11031693

117,296 miles · Jan 11, 2017
Air BagsService BrakesVehicle Speed ControlCrash

TL* THE CONTACT OWNS A 2011 TOYOTA SIENNA. WHEN THE ACCELERATOR PEDAL WAS DEPRESSED, IT BECAME STUCK. THE BRAKE PEDAL WAS DEPRESSED, BUT FAILED TO OPERATE. AS A RESULT, THE VEHICLE CRASHED INTO A TREE. THE AIR BAGS DID NOT DEPLOY. A POLICE REPORT WAS NOT FILED AND THERE WERE NO INJURIES. THE VEHICLE WAS TAKEN TO THE CONTACT'S RE…

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TL* THE CONTACT OWNS A 2011 TOYOTA SIENNA. WHEN THE ACCELERATOR PEDAL WAS DEPRESSED, IT BECAME STUCK. THE BRAKE PEDAL WAS DEPRESSED, BUT FAILED TO OPERATE. AS A RESULT, THE VEHICLE CRASHED INTO A TREE. THE AIR BAGS DID NOT DEPLOY. A POLICE REPORT WAS NOT FILED AND THERE WERE NO INJURIES. THE VEHICLE WAS TAKEN TO THE CONTACT'S RESIDENCE. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 117,296.

NHTSA ODI #10944247

Mileage unknown · Jan 26, 2016
Vehicle Speed ControlCrashInjury

TL* THE CONTACT OWNED A 2011 TOYOTA SIENNA. WHILE DRIVING 10 MPH APPROACHING THE DRIVEWAY, THE VEHICLE ACCELERATED WITHOUT WARNING WHEN THE BRAKE PEDAL WAS DEPRESSED. THE VEHICLE CRASHED INTO A TREE AT 15 MPH. THE DRIVER SUSTAINED FRACTURES TO THE RIGHT RIBS, FOOT, ANKLE, AND LEG THAT REQUIRED MEDICAL ATTENTION. THE PASSENGER SU…

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TL* THE CONTACT OWNED A 2011 TOYOTA SIENNA. WHILE DRIVING 10 MPH APPROACHING THE DRIVEWAY, THE VEHICLE ACCELERATED WITHOUT WARNING WHEN THE BRAKE PEDAL WAS DEPRESSED. THE VEHICLE CRASHED INTO A TREE AT 15 MPH. THE DRIVER SUSTAINED FRACTURES TO THE RIGHT RIBS, FOOT, ANKLE, AND LEG THAT REQUIRED MEDICAL ATTENTION. THE PASSENGER SUSTAINED FRACTURES TO THE RIGHT HAND, LEFT HIP, NECK, HAND, AND BACK. MEDICAL ATTENTION WAS REQUIRED. A POLICE REPORT WAS NOT FILED. THE VEHICLE WAS DESTROYED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS UNKNOWN.

NHTSA ODI #10822394

40,000 miles · Dec 23, 2015
Air BagsService BrakesVehicle Speed ControlCrashInjury

TL* THE CONTACT OWNS A 2011 TOYOTA SIENNA. THE CONTACT STATED THAT THE VEHICLE UNINTENTIONALLY ACCELERATED AS THE BRAKE PEDAL WAS DEPRESSED AND FAILED TO RESPOND WITHOUT WARNING. AS A RESULT, THE CONTACT CRASHED INTO A BUILDING. THE AIR BAGS FAILED TO DEPLOY. A POLICE REPORT WAS FILED. THE DRIVER SUSTAINED NECK AND LEG INJURIES …

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TL* THE CONTACT OWNS A 2011 TOYOTA SIENNA. THE CONTACT STATED THAT THE VEHICLE UNINTENTIONALLY ACCELERATED AS THE BRAKE PEDAL WAS DEPRESSED AND FAILED TO RESPOND WITHOUT WARNING. AS A RESULT, THE CONTACT CRASHED INTO A BUILDING. THE AIR BAGS FAILED TO DEPLOY. A POLICE REPORT WAS FILED. THE DRIVER SUSTAINED NECK AND LEG INJURIES HOWEVER, IT WAS UNKNOWN IF MEDICAL ATTENTION WAS REQUIRED. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC TO BE REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 40,000.

NHTSA ODI #10811882

15,600 miles · Nov 16, 2015
Power TrainService BrakesVehicle Speed ControlCrash

I PULLED INTO A RELATIVE'S GRAVEL DRIVEWAY WHICH HAS A VERY LARGE PARKING AREA TO THE SIDE. I PULLED UP TO ABOUT TWO FEET FROM THEIR GRASSY AREA, GOT INTO POSITION TO BACK UP INTO A PARKING SPACE, STOPPED, AND PUT MY 2011 SIENNA INTO REVERSE, AND AS SOON AS I GENTLY TOUCHED THE EXCELERATOR TO BEGIN BACKING UP THE VAN SPED FORWAR…

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I PULLED INTO A RELATIVE'S GRAVEL DRIVEWAY WHICH HAS A VERY LARGE PARKING AREA TO THE SIDE. I PULLED UP TO ABOUT TWO FEET FROM THEIR GRASSY AREA, GOT INTO POSITION TO BACK UP INTO A PARKING SPACE, STOPPED, AND PUT MY 2011 SIENNA INTO REVERSE, AND AS SOON AS I GENTLY TOUCHED THE EXCELERATOR TO BEGIN BACKING UP THE VAN SPED FORWARD AT A HIGH RATE OF SPEED CRASHING INTO AND OVER AN 8 INCH RAILROAD TIE THAT HAD A STEELBEAM ON TOP THAT SEPARATED THE DRIVEWAY FROM THEIR YARD. I HAD TO SLAM BOTH FEET ONTO THE BRAKE TO GET IT TO STOP WHICH IT FINALLY DID. I THOUGHT I HAD NOT PUT IT IN REVERSE BUT I LOOKED AT THE GEARSHIFT AND IT WAS INDEED IN REVERSE. I JIGGLED THE GEARSHIFT TO MAKE SURE IT WAS SECURED IN THE SLOT AND IT WAS. I THEN PUT IT IN PARK AND SAT THERE FOR A MINUTE OR TWO TRYING TO GAIN COMPOSURE TRYING TO FIGURE OUT WHAT JUST HAPPENED, I WAS IN SHOCK AS NOTHING LIKE THIS HAS EVER HAPPENED TO ME BEFORE. AFTER THAT MINUTE OR TWO I DECIDED I COULDN'T LET THE VEHICLE SIT THERE AND NEEDED TO MOVE IT. SCARED, BUT I PUT IT IN REVERSE AGAIN, READY TO POUNCE ON THE BRAKES WITH BOTH FEET AND BARELY TOUCHING THE EXCELERATOR I STARTED MOVING IN REVERSE. IT WAS WORKING FINE THEN. I THEN GOT OUT TO CHECK FOR DAMAGE AND THE BUMPER ON THE DRIVER'S SIDE WAS DAMAGED FROM THE IMPACT. THE AIRBAG DID NOT DEPLOY, I WAS NOT HURT HOWEVER HAD ANY OF MY RELATIVES BEEN IN THAT AREA AT THAT MOMENT IT COULD'VE RESULTED IN AN INJURY OR FATALITY. I REPORTED WHAT HAPPENED TO THE LOCAL DEALERSHIP WHERE I BOUGHT IT AND THEN TO TOYOTA USA AS INSTRUCTED IN THE HANDBOOK. NOW I'M REPORTING IT HERE. AM AWAITING CONTACT SUPPOSEDLY WITHIN THE NEXT DAY OR SO TO SEE WHAT TOYOTA INTENDS TO DO WITH THE SIENNA. I WILL NOT DRIVE AGAIN IT UNTIL THE REASON FOR THIS DEFECT IS FOUND AND FIXED AND DAMAGES REPAIRED. THE OUTCOME WILL DECIDE WHETHER I WILL EVER BE A TOYOTA CUSTOMER AGAIN.

NHTSA ODI #10790549

21,960 miles · Jun 16, 2014
SteeringTraction Control SystemVehicle Speed Control

2011 TOYOTA SIENNA. WHILE DRIVING ABOUT 40 MPH, THE POWER STEERING FAILED AS THE STEERING TRACTION CONTROL AND THE VSC WARNING LIGHTS ILLUMINATED. STEERING WHEEL IS VERY HEAVY AND HARD TO TURN. WHEN PARKING OR TURNING AT A ROAD CROSS THE STEERING WHEEL SEIZED. *TR

NHTSA ODI #10598673

Official recalls

14

19V741000 · Air Bags:frontal:driver Side:inflator Module; Air Bags:frontal:passenger Side:inflator Module

Oct 17, 2019

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2010-2016 4Runner, 2003-2006 Tundra, 2003-2013 Corolla, 2009-2010 Corolla Matrix, 2004-2005 RAV4, 2002-2007 Sequoia, 2011-2013 Sienna, 2008-2012 Scion xB, 2008-2009 Lexus IS-F, 2007-2012 Yaris and Lexus ES350, 2010-2017 Lexus GX460, 2002-2010 Lexus SC430, 2006-2012 Lexus IS250 and IS350 and 2010-2015 Lexus IS250C and IS350C vehicles. These vehicles had their driver or passenger frontal air bag inflators previously replaced under a prior recall using inflators of the same design. The inflators may explode due to propellant degradation occurring after long-term exposure to high absolute humidity, temperature and temperature cycling.

Consequence & remedy

Consequence: An inflator explosion may result in sharp metal fragments striking the driver or other occupants resulting in serious injury or death.

Remedy: Toyota will notify owners. Depending on the vehicle model, dealers will replace the front driver inflator, front passenger airbag inflator, the airbag assembly, or the front passenger airbag sub-assembly and inflator. The recall began November 20, 2019. Owners may contact Toyota customer service at 1-888-270-9371 or Lexus customer service at 1-800-255-3987. Toyota's numbers for this recall are J0A, J0B, and J0C. Lexus' numbers for this recall are JLI, JLJ, and JLK.

Additional source detail variants (2)

Air Bags:frontal:passenger Side:inflator Module

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2010-2016 4Runner, 2003-2006 Tundra, 2003-2013 Corolla, 2009-2010 Corolla Matrix, 2004-2005 RAV4, 2002-2007 Sequoia, 2011-2013 Sienna, 2008-2012 Scion xB, 2008-2009 Lexus IS-F, 2007-2012 Yaris and Lexus ES350, 2010-2017 Lexus GX460, 2002-2010 Lexus SC430, 2006-2012 Lexus IS250 and IS350 and 2010-2015 Lexus IS250C and IS350C vehicles. These vehicles had their driver or passenger frontal air bag inflators previously replaced under a prior recall using inflators of the same design. The inflators may explode due to propellant degradation occurring after long-term exposure to high absolute humidity, temperature and temperature cycling.

Consequence: An inflator explosion may result in sharp metal fragments striking the driver or other occupants resulting in serious injury or death.

Remedy: Toyota will notify owners. Depending on the vehicle model, dealers will replace the front driver inflator, front passenger airbag inflator, the airbag assembly, or the front passenger airbag sub-assembly and inflator. The recall began November 20, 2019. Owners may contact Toyota customer service at 1-888-270-9371 or Lexus customer service at 1-800-255-3987. Toyota's numbers for this recall are J0A, J0B, and J0C. Lexus' numbers for this recall are JLI, JLJ, and JLK.

Air Bags:frontal:driver Side:inflator Module

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2010-2016 4Runner, 2003-2006 Tundra, 2003-2013 Corolla, 2009-2010 Corolla Matrix, 2004-2005 RAV4, 2002-2007 Sequoia, 2011-2013 Sienna, 2008-2012 Scion xB, 2008-2009 Lexus IS-F, 2007-2012 Yaris and Lexus ES350, 2010-2017 Lexus GX460, 2002-2010 Lexus SC430, 2006-2012 Lexus IS250 and IS350 and 2010-2015 Lexus IS250C and IS350C vehicles. These vehicles had their driver or passenger frontal air bag inflators previously replaced under a prior recall using inflators of the same design. The inflators may explode due to propellant degradation occurring after long-term exposure to high absolute humidity, temperature and temperature cycling.

Consequence: An inflator explosion may result in sharp metal fragments striking the driver or other occupants resulting in serious injury or death.

Remedy: Toyota will notify owners. Depending on the vehicle model, dealers will replace the front driver inflator, front passenger airbag inflator, the airbag assembly, or the front passenger airbag sub-assembly and inflator. The recall began November 20, 2019. Owners may contact Toyota customer service at 1-888-270-9371 or Lexus customer service at 1-800-255-3987. Toyota's numbers for this recall are J0A, J0B, and J0C. Lexus' numbers for this recall are JLI, JLJ, and JLK.

19V005000 · Air Bags:frontal:passenger Side:inflator Module

Jan 9, 2019

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2014-2016 Toyota 4Runner, 2014-2015 Scion xB, Lexus IS350C, IS250C, 2014 Toyota Sienna, Lexus IS-F, and 2014-2017 Lexus GX460 vehicles sold, or ever registered in the states of Alabama, California, Florida, Georgia, Hawaii, Louisiana, Mississippi, South Carolina, Texas, Puerto Rico, American Samoa, Guam, the Northern Mariana Islands (Saipan), and the U.S. Virgin Islands or "Zone A." Toyota is also recalling certain 2011-2013 Toyota Corolla, Corolla Matrix, Lexus IS250, IS350, 2011-2016 4Runner, 2011-2015 Scion xB, Lexus IS350C, IS250C, 2011-2014 Toyota Sienna, Lexus IS-F, 2011-2017 Lexus GX460, and 2011-2012 Lexus ES350 vehicles ever registered in the states of Arizona, Arkansas, Delaware, District of Columbia, Illinois, Indiana, Kansas, Kentucky, Maryland, Missouri, Nebraska, Nevada, New Jersey, New Mexico, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Virginia, and West Virginia or "Zone B." Toyota is also recalling certain 2010-2013 Toyota Corolla, Corolla Matrix, Lexus IS350, 2010-2016 4Runner, 2010-2013 Lexus IS250, 2010-2015 Scion xB, Lexus IS350C, IS250C, 2010-2017 Lexus GX460, 2010-2014 Lexus IS-F, and 2010-2012 Lexus ES350 vehicles ever registered in the states of Alaska, Colorado, Connecticut, Idaho, Iowa, Maine, Massachusetts, Michigan, Minnesota, Montana, New Hampshire, New York, North Dakota, Oregon, Rhode Island, South Dakota, Utah, Vermont, Washington, Wisconsin, and Wyoming or "Zone C." These vehicles are equipped with air bag inflators assembled as part of the passenger frontal air bag modules, used as original equipment or replacement equipment (such as after a vehicle crash necessitating replacement of the original air bags), that may explode due to propellant degradation occurring after long-term exposure to high absolute humidity, temperature and temperature cycling.

Consequence & remedy

Consequence: An inflator explosion may result in sharp metal fragments striking the driver or other occupants resulting in serious injury or death.

Remedy: Toyota will notify owners. Depending on the vehicle model, dealers will replace the front passenger air bag inflator, or replace the air bag assembly. The recall began February 15, 2019. Owners may contact Toyota customer service at 1-800-331-4331. Toyota's numbers for this recall are "Zone A" Toyota: G0P, Lexus: GLG; "Zone B" Toyota: G0R, Lexus GLH; "Zone C" Toyota: H0A, and Lexus: HLA.

16V858000 · Structure:body:door

Nov 29, 2016

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain model year 2011-2016 Toyota Sienna minivans manufactured January 4, 2010, to August 12, 2016. If the power sliding door is unable to be opened when commanded, such as if the door is frozen shut, the door may subsequently open unexpectedly, possibly while the vehicle is moving.

Consequence & remedy

Consequence: If door opens while the vehicle is moving, there would be an increased risk of injury to the vehicle occupants.

Remedy: Toyota will notify owners, and dealers will replace the junction block, rear sliding door wire harnesses, and install two sub wire harnesses, free of charge. The recall began on July 28, 2017. Owners may contact Toyota customer service at 1-800-331-4331. Toyota's number for this recall is G04.

16V396000 · Seats:front Assembly:seat Heater/cooler

Jun 2, 2016

Southeast Toyota Distributors, LLC (SET) is recalling certain 2005-2011 4Runner, Highlander, Sequoia, and Sienna, 2005-2010 Avalon and Tundra, 2006-2008 Camry Solara, 2006-2010 Highlander hybrid, 2006-2011 Rav4 and Tacoma, 2007-2010 FJ Cruiser, 2007-2011 Camry hybrid, 2009-2010 Venza, 2010-2012 Prius, 1988-1990 and 2005-2010 Camry, and 1989 and 2009-2010 Corolla vehicles equipped with aftermarket accessory seat heaters with a copper strand heating element. The electrical wiring in the seat heaters may be damaged when the seat cushion is compressed.

Consequence & remedy

Consequence: If damaged, the copper strand heating element may short circuit, increasing the risk of a fire.

Remedy: SET will notify owners, and dealers will disconnect the seat heaters, free of charge, and refund the purchase price of the seat heater accessory. The recall began on July 14, 2016. Owners may contact SET customer service at 1-866-405-4226. SET number for this recall is SET16B.

16V340000 · Air Bags:frontal:passenger Side:inflator Module

May 23, 2016

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain model year 2008-2011 Scion xB and Lexus IS F, 2009-2011 Toyota Corolla and Corolla Matrix, 2006-2011 Toyota Yaris, Lexus IS250 and Lexus IS350, 2010-2011 Toyota 4Runner, Lexus IS250C, Lexus IS350C and Lexus GX460, 2011 Sienna, 2007-2011 Lexus ES350, and 2009-2010 Pontiac Vibe vehicles, originally sold, or ever registered, in Alabama, California, Florida, Georgia, Hawaii, Louisiana, Mississippi, South Carolina, Texas, Puerto Rico, American Samoa, Guam, the Northern Mariana Islands (Saipan), and the U.S. Virgin Islands, or "Zone A." Additionally, unless included in "Zone A" above, Toyota is recalling certain model year 2008 Scion xB and Lexus IS F, 2007-2008 Toyota Yaris, 2006-2008 Lexus IS250 and Lexus IS350 and 2007-2008 Lexus ES350 vehicles, originally sold, or ever registered, in Arizona, Arkansas, Delaware, District of Columbia, Illinois, Indiana, Kansas, Kentucky, Maryland, Missouri, Nebraska, Nevada, New Jersey, New Mexico, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Virginia, and West Virginia, or "Zone B." Vehicles of these model years and models that were not originally sold or ever registered in either Zones A or B are not subject to this safety recall. These vehicles are equipped with certain air bag inflators assembled as part of the passenger frontal air bag modules, and used as original equipment or replacement equipment. In the event of a crash necessitating deployment of the front air bags, these inflators may rupture due to propellant degradation occurring after long-term exposure to absolute humidity and temperature cycling.

Consequence & remedy

Consequence: An inflator rupture may result in metal fragments striking the vehicle occupants resulting in serious injury or death.

Remedy: Toyota will notify the Toyota and Lexus owners. General Motors will contact the Pontiac owners. Depending on the model, dealers will replace the passenger frontal air bag inflator or the air bag assembly, free of charge. The recall began on December 6, 2016. Owners may contact Toyota customer service at 1-800-331-4331. Toyota's numbers for interim notification for this campaign are G1P (Toyota Zone A), G1R (Toyota Zone B), G2G (Lexus Zone A), and G2H (Lexus Zone B). Toyota's numbers for final remedy for this campaign are G0P (Toyota Zone A), G0R (Toyota Zone B), GLG (Lexus Zone A), and GLH (Lexus Zone B).

14V743000 · Seats:front Assembly:seat Heater/cooler

Nov 19, 2014

Southeast Toyota Distributors, LLC (SET) is recalling certain model year 2010-2011 Prius and Corolla, 2009-2011 Venza, 2006-2010 Avalon, 2007-2010 FJ Cruiser, 2005-2011 Sienna and Sequoia, 2006-2011 Tacoma 4x2 and 4x4, Camry, Highlander, Tundra 4x2 and 4x4, and 2007-2011 Rav4 and 4Runner. The affected vehicles may experience compression of the seat cushion which may damage the seat heater wiring.

Consequence & remedy

Consequence: Damage to the seat heater wiring could cause the wires to short, increasing the risk of the seat burning and causing personal injury to the occupant.

Remedy: SET will notify owners, and dealers will disconnect the heaters with copper strand heating elements and refund the purchase price of the seat heater accessory, free of charge. The recall is expected to began in January 2015. Owners may contact SET customer service at 1-866-405-4226.

14V273000 · Tires:temporary/emergency Spare Tire

May 22, 2014

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain model year 2004-2011 Sienna vehicles originally sold in, or currently registered in, Connecticut, Delaware, Illinois, Indiana, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, Virginia, West Virginia, Wisconsin and the District of Columbia. The affected vehicles have a spare tire carrier assembly mounted under the vehicle whose attachment cable may corrode due to high concentrations of road salt splashing onto the spare tire carrier.

Consequence & remedy

Consequence: If the carrier cable is corroded due to road salt, the spare tire may separate from the vehicle, increasing the risk of a crash.

Remedy: Toyota sent owners in August 2014 an interim notification to advise owners of the recall and that dealers will perform an interim remedy to remove the spare tire and relocate it to the luggage compartment, free of charge. Owners are being mailed a second letter as parts become available and dealers will replace the spare tire carrier assembly with an improved one, free of charge. The remedy campaign is being performed in phases. The first phase of the recall began July 7, 2015. Owners may contact Toyota customer service at 1-800-331-4331. NOTE: 2004-2010 Siennas subject to this recall were subject to recall campaign 10V-160 initiated in 2010. Those owners are advised that they must have their vehicles remedied again under this campaign and that having the earlier recall completed did not remedy their vehicles. Additionally, model year 1998-2003 Siennas were recalled as part of safety recall 10V-160. Owners of those vehicles that have not had not the remedy performed on their vehicles, should contact their Toyota dealer to schedule a free repair.

13V123000 · Equipment:other:labels

Apr 9, 2013

Southeast Toyota is recalling certain model year 2008 and 2010-2013 Toyota Tundra, 2010-2012 Rav4, 2012 Toyota Sequoia, 2010-2011 Toyota Corolla, 2010-2011 Toyota Camry and Camry Hybrid, 2010-2013 Toyota Highlander and Highlander Hybrid, 2010-2013 Toyota FJ Cruiser, 2011 Toyota Land Cruiser, 2010-2013 Toyota Venza, 2010-2011 Toyota 4Runner, 2010-2013 Toyota Tacoma, 2011-2012 Toyota Sienna, 2012 Toyota Prius, 2013 Scion FR-S, 2011 Scion XD, 2011 Scion XB, and 2012 Scion TC vehicles. These vehicles were sold with labels that were outside the allowable one percent of accuracy of actual weight added. Thus, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) Number 110, "Tire Selection and Rims."

Consequence & remedy

Consequence: An inaccurate label could lead to owners overloading their vehicles and tires. An overloaded vehicle can result in a tire failure which may result in a vehicle crash, personal injury, or property damage.

Remedy: Southeast Toyota will notify owners and provide a corrected label with instructions concerning its installation. A small group of the affected vehicles will need additonal remedies which are still being developed. The recall began on May 28, 2013. Owners may contact Southeast Toyota at 1-800-301-6859.

13V014000 · Air Bags:frontal:sensor/control MODULE-INACTIVE ; Seats

Jan 16, 2013

Southeast Toyota Distributors, LLC (SET) is recalling certain models interspersed through model years 2009 through 2013 as follows: model year 2009-2012 Tacoma, 4Runner, Camry, Camry Hybrid, Prius, and RAV4; model year 2009-2010 Avalon, FJ Cruiser, and Highlander Hybrid; model year 2010-2013 model year Corolla, Sienna and Tundra; model year 2009-2013 Highlander and Venza; model year 2012 Prius V; and model year 2010-2012 Sequoia. During modification by SET to include accessories such as leather seat covers, seat heaters or headrest DVD systems, these vehicles may not have had the passenger seat occupant sensing system calibration tested. Without passing the calibration test, the occupant sensing system may not operate as designed.

Consequence & remedy

Consequence: If the front passenger seat occupant sensing system is out of calibration, the front passenger airbags may not deploy or they may deploy inappropriately for the passenger's size and position. This could increase the risk of personal injury during the event of a vehicle crash necessitating airbag deployment.

Remedy: Southeast Toyota will notify owners, and dealers will test the sensitivity of the occupant detection sensors, and recalibrate them as necessary. The recall began on March 21, 2013. Owners may contact Southeast Toyota at 1-800-301-6859.

Additional source detail variants (2)

Seats

Southeast Toyota Distributors, LLC (SET) is recalling certain models interspersed through model years 2009 through 2013 as follows: model year 2009-2012 Tacoma, 4Runner, Camry, Camry Hybrid, Prius, and RAV4; model year 2009-2010 Avalon, FJ Cruiser, and Highlander Hybrid; model year 2010-2013 model year Corolla, Sienna and Tundra; model year 2009-2013 Highlander and Venza; model year 2012 Prius V; and model year 2010-2012 Sequoia. During modification by SET to include accessories such as leather seat covers, seat heaters or headrest DVD systems, these vehicles may not have had the passenger seat occupant sensing system calibration tested. Without passing the calibration test, the occupant sensing system may not operate as designed.

Consequence: If the front passenger seat occupant sensing system is out of calibration, the front passenger airbags may not deploy or they may deploy inappropriately for the passenger's size and position. This could increase the risk of personal injury during the event of a vehicle crash necessitating airbag deployment.

Remedy: Southeast Toyota will notify owners, and dealers will test the sensitivity of the occupant detection sensors, and recalibrate them as necessary. The recall began on March 21, 2013. Owners may contact Southeast Toyota at 1-800-301-6859.

Air Bags:frontal:sensor/control MODULE-INACTIVE

Southeast Toyota Distributors, LLC (SET) is recalling certain models interspersed through model years 2009 through 2013 as follows: model year 2009-2012 Tacoma, 4Runner, Camry, Camry Hybrid, Prius, and RAV4; model year 2009-2010 Avalon, FJ Cruiser, and Highlander Hybrid; model year 2010-2013 model year Corolla, Sienna and Tundra; model year 2009-2013 Highlander and Venza; model year 2012 Prius V; and model year 2010-2012 Sequoia. During modification by SET to include accessories such as leather seat covers, seat heaters or headrest DVD systems, these vehicles may not have had the passenger seat occupant sensing system calibration tested. Without passing the calibration test, the occupant sensing system may not operate as designed.

Consequence: If the front passenger seat occupant sensing system is out of calibration, the front passenger airbags may not deploy or they may deploy inappropriately for the passenger's size and position. This could increase the risk of personal injury during the event of a vehicle crash necessitating airbag deployment.

Remedy: Southeast Toyota will notify owners, and dealers will test the sensitivity of the occupant detection sensors, and recalibrate them as necessary. The recall began on March 21, 2013. Owners may contact Southeast Toyota at 1-800-301-6859.

11V560000 · Equipment:other:labels

Nov 30, 2011

TOYOTA IS RECALLING CERTAIN MODEL YEAR 2011 THROUGH 2012 SIENNA VEHICLES FOR FAILING TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NUMBER 110, "TIRE SELECTIONS AND RIMS." THESE VEHICLES DO NOT MEET THE REQUIREMENT FOR DISPLAYING THE CORRECT VEHICLE CAPACITY WEIGHT AS THE RATED LOAD FOR THE COMBINATION OF CARGO AND OCCUPANTS.

Consequence & remedy

Consequence: INCORRECT INFORMATION ON THE VEHICLE PLACARD MAY LEAD TO TIRE OVERLOADING AND POSSIBLY CAUSE TIRE FAILURE INCREASING THE RISK OF A CRASH.

Remedy: TOYOTA WILL NOTIFY OWNERS, AND WILL PROVIDE A REMEDY WHEN IT IS AVAILABLE. TOYOTA WILL MAIL OUT A CORRECTED PLACARD TO CUSTOMERS ALONG WITH REVISED OWNER MANUAL INFORMATION. THIS SERVICE WILL BE PERFORMED FREE OF CHARGE. THE SAFETY RECALL BEGAN ON JUNE 27, 2013. OWNERS MAY CONTACT TOYOTA AT 1-800-331-4331.

11V566000 · Structure:body:roof And Pillars

Nov 22, 2011

SOUTHEAST TOYOTA IS RECALLING CERTAIN MODEL YEAR 2010-2011 COROLLA VEHICLES EQUIPPED WITH A NON-TOYOTA, BLUE TOOTH HANDS FREE DEVICE OR NAVIGATION UNIT AND CERTAIN MODEL YEAR 2011 TOYOTA SIENNA VEHICLES EQUIPPED WITH A NON-TOYOTA, OVERHEAD ENTERTAINMENT SYSTEM AND/OR BLUETOOTH HANDS FREE DEVICE. THERE IS A POSSIBILITY THAT THE FRONT A-PILLAR TRIM PANEL RETENTION CLIP MAY HAVE BEEN DAMAGED DURING THE INSTALLATION OF THE AFTERMARKET ACCESSORY.

Consequence & remedy

Consequence: A DAMAGED A-PILLAR TRIM PANEL RETENTION CLIP MAY ALLOW THE TRIM PANEL TO COME LOOSE AND INJURE AN OCCUPANT IN THE EVENT OF A CRASH.

Remedy: DEALERS WILL INSPECT THE A-PILLAR TRIM PANEL RETENTION CLIP AND REPLACE IT IF NECESSARY FREE OF CHARGE. THE SAFETY RECALL BEGAN ON DECEMBER 30, 2011. OWNERS MAY CONTACT SOUTHEAST TOYOTA AT 1-800-301-6859.

11V306000 · Power Train:driveline:driveshaft

Jun 1, 2011

TOYOTA IS RECALLING CERTAIN MODEL YEAR 2011 VENZA AND SIENNA PASSENGER CARS MANUFACTURED FROM MARCH 7, THROUGH MARCH 10, 2011. THERE IS A POSSIBILITY THAT THE FRONT, RIGHT, DRIVE SHAFT MAY BREAK DUE TO INSUFFICIENT HEAT TREATMENT.

Consequence & remedy

Consequence: SHOULD THE DRIVE SHAFT BREAK DURING VEHICLE OPERATION, THE VEHICLE WILL LOSE POWER WITHOUT PRIOR WARNING. LOSS OF MOTIVE POWER WITHOUT WARNING MAY INCREASE THE RISK OF A CRASH.

Remedy: TOYOTA WILL NOTIFY OWNERS AND DEALERS WILL INSPECT THE DRIVE SHAFT, AND, IF THE DRIVE SHAFT IS IDENTIFIED AS ONE THAT MAY NOT HAVE BEEN CORRECTLY MANUFACTURED, IT WILL BE REPLACED WITH A NEW ONE AT NO CHARGE. THE SAFETY RECALL BEGAN ON JUNE 22, 2011. OWNERS MAY CONTACT TOYOTA AT 1-800-331-4331.

10V620000 · Service Brakes, Hydraulic:pedals And Linkages

Dec 13, 2010

TOYOTA IS RECALLING CERTAIN MODEL YEAR 2011 SIENNA VEHICLES. THE BRAKE STOP LAMP SWITCH IS MOUNTED ON A SMALL BRACKET WELDED ON THE LEFT SIDE OF THE SERVICE BRAKE PEDAL SUPPORT ASSEMBLY. DUE TO ITS PROXIMITY TO THE PARKING BRAKE PEDAL, IN LIMITED CIRCUMSTANCES THE STOP LAMP SWITCH BRACKET COULD BE DAMAGED BY THE OPERATOR'S FOOT DURING PARKING BRAKE APPLICATION.

Consequence & remedy

Consequence: THIS COULD RESULT IN BRAKE DRAG WITH ASSOCIATED BRAKE NOISE, VIBRATION, AND/OR ILLUMINATION OF THE BRAKE WARNING LIGHT. BRAKING EFFECTIVENESS COULD BE REDUCED INCREASING THE RISK OF A CRASH.

Remedy: DEALERS WILL REPLACE THE BRACKET ASSEMBLY FREE OF CHARGE. TOYOTA PLANS TO MAIL AN INTERIM OWNER NOTIFICATION IN THE MIDDLE OF JANUARY 2011, TO ADVISE OWNERS OF THE RECALL. A SECOND LETTER WILL BE MAILED WHEN PARTS ARE AVAILABLE TO COMPLETE REPAIRS. OWNERS MAY CONTACT TOYOTA AT 1-800-331-4331.

10V036000 · Equipment:other:labels

Feb 3, 2010

SOUTHEAST TOYOTA IS RECALLING CERTAIN MODEL YEAR 2005-2011 PASSENGER VEHICLES FOR FAILING TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 110, "TIRE SELECTION AND RIMS." THESE VEHICLES WERE SOLD WITHOUT THE REQUISITE LOAD CARRYING CAPACITY MODIFICATION LABELS.

Consequence & remedy

Consequence: A DRIVER MAY OVERLOAD A VEHICLE WHICH MAY INCREASE THE RISK OF A CRASH.

Remedy: DEALERS WILL MAIL TO CONSUMERS THE CORRECTED LABEL OR THE CUSTOMER WILL HAVE THE OPTION FOR DEALERS TO INSTALL THE LABEL FREE OF CHARGE. THE SAFETY RECALL BEGAN ON MAY 27, 2010. OWNERS MAY CONTACT SOUTHEAST TOYOTA AT 1-800-301-6859.

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

1

EA21002 · 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.