TCM and electrical transmission grounded out TCM IN MY RESEARCH a lot of people are having issues with these. Dealers are of no help “backordered” so having to rebuild them. This is an expensive failure!
2009 GMC Sierra 1500
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 2009 GMC Sierra 1500 do not stand out strongly from the model-year median of 181.
About this comparison →How this year compares
Owner complaints by model year
Compare all Sierra 1500 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
117 reports with mileage · 117 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 122 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 20 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Structure. Review the 20 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
20 reportsWhile driving on Saturday, July 29th, I went to make a right turn @ intersection of Nottingham Way onto Ledo Rd. The vehicle started jerking and suddenly shutoff. I had no power steering, No power brakes. I had to manually steer and stop the truck into the median, while avoiding oncoming traffic. I got the vehicle to stop. I tri…
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While driving on Saturday, July 29th, I went to make a right turn @ intersection of Nottingham Way onto Ledo Rd. The vehicle started jerking and suddenly shutoff. I had no power steering, No power brakes. I had to manually steer and stop the truck into the median, while avoiding oncoming traffic. I got the vehicle to stop. I tried to restart and the engine turned over, but would not start. I contacted the local Chevrolet dealership, and was told they don't work on anything older than 2013 vehicles. I had the truck towed to the house. After further investigation, there was a service bulletin 14515B, that replaced 14515A. The Safety recall stated CHASSIS ELECTRONIC CONTROL MODULE INTERNAL CONTAMINATION. So GM is aware of this issue, that could have caused an accident. The local dealership is denying that my truck is involved in this recall. They knew of the problem and never contacted me about this issue. This is a severe SAFETY issue. GM should be responsible for repairing a defective Control module as they knew of contamination as of January 2015. This almost cause multiple head on collisions.
Dashboard instrument panel all lights and gauges goes out while driving down the road when vehicle is turned off a clicking noise is made in the dash. This issue causes when driving down the road, not knowing the speed because the speedometer is out or how much gas the vehicle has, or any other readings, and at night all lights…
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Dashboard instrument panel all lights and gauges goes out while driving down the road when vehicle is turned off a clicking noise is made in the dash. This issue causes when driving down the road, not knowing the speed because the speedometer is out or how much gas the vehicle has, or any other readings, and at night all lights go out, not able to see while driving down the road.
My dashboard instrument cluster has been going in and out since iv owned the vehicle in February of 2022 and iv replaced fuses did the reset test and everything on it and nothing I can’t see my speed rpm’s gas gauge nothing all the lights are on but nothing else moves or comes on I can’t even tell the speed I’m going or if I eve…
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My dashboard instrument cluster has been going in and out since iv owned the vehicle in February of 2022 and iv replaced fuses did the reset test and everything on it and nothing I can’t see my speed rpm’s gas gauge nothing all the lights are on but nothing else moves or comes on I can’t even tell the speed I’m going or if I even have enough gas in the truck to even make it to a store I have add electrical problems since day one with the truck and replaced so many fuses for everything and nothing work’s really even my alarm system don’t work
Transmission Control Module Since the summer of 2020 the vehicle has at least half a dozen times, without warning, experienced the following symptoms (most recently July 27, 2021 when I captured it on video). 1. power door locks begin cycling open and closed 2. intermittent chime operation 3. transmission locks into a single gea…
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Transmission Control Module Since the summer of 2020 the vehicle has at least half a dozen times, without warning, experienced the following symptoms (most recently July 27, 2021 when I captured it on video). 1. power door locks begin cycling open and closed 2. intermittent chime operation 3. transmission locks into a single gear and won't shift or will shift harshly 4. gauges fluctuate 5. traction control and stabilitrak turn off 6. service traction control and service stabilitrak messages appear 7. transmission position indicator disappears
SEATBELT RECALL. AND TIRE PRESSUE LIGHT CONTIUE TO COME ON
TL* THE CONTACT OWNS A 2009 GMC SIERRA 1500. THE CONTACT STATED THAT THE VEHICLE HESITATED AND STALLED WITHOUT WARNING. THE VEHICLE WAS TAKEN TO SERRA CHEVROLET CADILLAC BUICK GMC (189 STONEBRIDGE BLVD, JACKSON, TN 38305, (888) 380-6149) WHERE THEY REPLACED THE FUEL PUMP MODULE, CLEANED THE THROTTLE BODY, REPLACED THE FUEL PUMP …
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TL* THE CONTACT OWNS A 2009 GMC SIERRA 1500. THE CONTACT STATED THAT THE VEHICLE HESITATED AND STALLED WITHOUT WARNING. THE VEHICLE WAS TAKEN TO SERRA CHEVROLET CADILLAC BUICK GMC (189 STONEBRIDGE BLVD, JACKSON, TN 38305, (888) 380-6149) WHERE THEY REPLACED THE FUEL PUMP MODULE, CLEANED THE THROTTLE BODY, REPLACED THE FUEL PUMP SENDING UNIT, AND REPROGRAMMED THE MODULE. THE CONTACT STATED THAT THE ENGINE POWER WAS REDUCED DUE TO LACK OF COMMUNICATION WITH THE FUEL PUMP MODULE. SHORTLY AFTER THE REPAIR, ALL OF THE WARNING INDICATORS FLASHED, WHICH HAD NOT OCCURRED PRIOR TO THE REPAIR. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 103,000.
TL* THE CONTACT OWNS A 2009 GMC SIERRA 1500. WHILE DRIVING 65 MPH, THE SPEEDOMETER AND THE TACHOMETER GAUGES FLUCTUATED UP AND DOWN, THE AIR BAG AND TRANSMISSION INDICATORS ILLUMINATED, AND THE ENGINE SEIZED. THE VEHICLE WAS NOT TAKEN TO A DEALER TO BE DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED AND INFORMED THE CONTACT…
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TL* THE CONTACT OWNS A 2009 GMC SIERRA 1500. WHILE DRIVING 65 MPH, THE SPEEDOMETER AND THE TACHOMETER GAUGES FLUCTUATED UP AND DOWN, THE AIR BAG AND TRANSMISSION INDICATORS ILLUMINATED, AND THE ENGINE SEIZED. THE VEHICLE WAS NOT TAKEN TO A DEALER TO BE DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED AND INFORMED THE CONTACT TO CALL A DEALER. THE FAILURE MILEAGE WAS APPROXIMATELY 47,540.
I PURCHASED MY TRUCK ABOUT 1 YEAR AGO AND IT HAD 32,00 MILES ON IT, IT NOW HAS 40,000 MILES. EVERYTHING WAS FINE WITH IT UNTIL ABOUT MID-APRIL. I WAS DRIVING TO KALAMAZOO TO SEE MY DAUGHTER ON I-94 AROUND 72 MPH WITH THE CRUISE CONTROL ON. I TURNED ON MY LEFT TURN SIGNAL TO CHANGE LANES TO PASS THE PERSON IN FRONT OF ME AND T…
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I PURCHASED MY TRUCK ABOUT 1 YEAR AGO AND IT HAD 32,00 MILES ON IT, IT NOW HAS 40,000 MILES. EVERYTHING WAS FINE WITH IT UNTIL ABOUT MID-APRIL. I WAS DRIVING TO KALAMAZOO TO SEE MY DAUGHTER ON I-94 AROUND 72 MPH WITH THE CRUISE CONTROL ON. I TURNED ON MY LEFT TURN SIGNAL TO CHANGE LANES TO PASS THE PERSON IN FRONT OF ME AND TO MY DISMAY MY SPEED DROPPED DRASTICALLY AS THE CRUISE CONTROL DISENGAGED. THIS HAPPENED SEVERAL TIMES ON THE WAY TO KALAMAZOO THAT DAY. IT ALSO GOT WORSE ON THIS TRIP, SOMETIMES THE DOOR LOCKS WOULD LOCK AND UNLOCK, ALL OF THE LIGHTS ON THE DASHBOARD TURNED ON AND OFF AND EVERY TIME ANYTHING HAPPENED THE SPEED DROPPED, WHICH TO ME IS A SAFETY HAZARD AND SHOULD BE PART OF A RECALL. WHEN I GOT HOME THE NEXT DAY, I CALLED LEVALLEY GMC TO TAKE A LOOK AT MY TRUCK (WHERE IT'S BEEN SERVICED SINCE PURCHASE). WHEN I EXPLAINED THE SITUATION TO THEM, THEY CLAIMED THEY NEVER HEARD OF IT. THAT'S STRANGE BECAUSE IF THIS SITUATION IS GOOGLED, THERE IS A LOT OF INFORMATION ABOUT WHAT COULD BE WRONG. LO AND BEHOLD A DAY AND A HALF LATER MY TRUCK WAS FIXED AT A COST OF $1069.71 FOR DIAGNOSIS AND 3 CABLES, ALL POSITIVE AND NEGATIVE BATTERY CABLES. I CONSIDER THIS SITUATION A SERIOUS SAFETY ISSUE. I SENT A LETTER TO GM CUSTOMER SERVICE. LOU CONTACTED ME AND LEFT A VOICE MAIL WITH CASE NUMBER 8-4206988703 (6/4/18). I CALLED CUSTOMER SERVICE AND SPOKE WITH TONI ALSO 6/4/18. TONI REVIEWED THE CASE AND ASKED WHAT I WAS REQUESTING. I TOLD HER THAT THIS IS A VERY SERIOUS SAFETY MATTER THAT SHOULD BE ADDRESSED AND I WOULD LIKE TO BE COMPENSATED SOMEHOW. TONI STATED THAT THERE IS NO RECALL FOR THIS SITUATION AND THERE IS NOTHING THAT SHE CAN DO. I TOLD HER MAYBE THERE SHOULD BE A RECALL AND I AGAIN STATED THAT THIS IS A SERIOUS SAFETY ISSUE
VEHICLE WILL RANDOMLY SHOW A WARNING SIGNAL FOR STABILTRACK TURNING OFF. THEN IT WILL CYCLE DOOR LOCKS UP AND DOWN, TURN ON THE AIR BAG LIGHT, ABS LIGHT, AND SOMETIMES REDUCE POWER TO 20 MPH. IT WILL ALSO KILL THE VEHICLE GAUGES. NUMEROUS TRIPS TO THE SHOP HAVE FAILED TO CORRECT THE ISSUE. A QUICK GOOGLE SEARCH OF STABILTRAC…
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VEHICLE WILL RANDOMLY SHOW A WARNING SIGNAL FOR STABILTRACK TURNING OFF. THEN IT WILL CYCLE DOOR LOCKS UP AND DOWN, TURN ON THE AIR BAG LIGHT, ABS LIGHT, AND SOMETIMES REDUCE POWER TO 20 MPH. IT WILL ALSO KILL THE VEHICLE GAUGES. NUMEROUS TRIPS TO THE SHOP HAVE FAILED TO CORRECT THE ISSUE. A QUICK GOOGLE SEARCH OF STABILTRACK 2009 CHEVY/GMC WILL SHOW A TON OF HITS. DUE TO THE SAFETY CONCERNS OF THESE CRITICAL SYSTEMS POWERING DOWN, THIS IS CLEARLY A SAFETY ISSUE. THIS OCCURS WHILE THE VEHICLE IS IN MOTION, WHICH MAKES IT MORE CONCERNING. THIS ISSUE STARTED WITH 66K MILES AND HAS PERSISTED. VEHICLE NOW HAS 96K.
Official recalls
421V050000 · Air Bags:frontal:passenger Side:inflator Module
Feb 5, 2021
General Motors, LLC (GM) is recalling certain 2007-2011 Cadillac Escalade, Escalade ESV, Escalade EXT, Chevrolet Avalanche, Silverado 1500, Suburban, Tahoe, GMC Sierra 1500, Yukon, Yukon XL, and 2009-2011 Chevrolet Silverado 2500, Silverado 3500, GMC Sierra 2500 and Sierra 3500 vehicles originally 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." Additionally, GM is recalling certain 2007-2008 Cadillac Escalade, Escalade ESV, Escalade EXT, Chevrolet Avalanche, Silverado 1500, Suburban, Tahoe, GMC Sierra 1500, Yukon, Yukon XL vehicles originally sold, or 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." These vehicles are equipped with non-desiccated passenger frontal inflators containing phase-stabilized ammonium nitrate (PSAN) propellant. These inflators may explode due to propellant degradation occurring after long-term exposure to high absolute humidity, high temperatures, and high 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: GM will notify owners, and dealers will replace the front passenger air bag inflator with an alternate one, free of charge. Interim letters notifying owners of the safety risk were mailed on February 22, 2021. Second notification letters will be mailed once the remedy is available. Owner notification letters were mailed on March 1, 2021. Owners may contact Chevrolet customer service at 1-800-222-1020; Cadillac customer service at 1-800-458-8006; and GMC customer service at 1-800-462-8782. GM's number for this recall is N212328760.
21V052000 · Air Bags:frontal:passenger Side:inflator Module
Feb 5, 2021
General Motors, LLC (GM) is recalling certain 2009 Cadillac Escalade, Escalade ESV, Escalade EXT, Chevrolet Avalanche, Silverado 1500, Silverado 2500, Silverado 3500, Suburban, Tahoe, GMC Sierra 1500, Sierra 2500, Sierra 3500, Yukon, and Yukon XL vehicles originally sold, or 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." Additionally, GM is recalling certain 2007-2008 Cadillac Escalade, Escalade ESV, and Escalade EXT, Chevrolet Avalanche, Silverado 1500, Suburban, Tahoe, GMC Sierra 1500, Yukon, and Yukon XL vehicles originally sold, or 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 non-desiccated passenger frontal inflators containing phase-stabilized ammonium nitrate (PSAN) propellant. These inflators may explode due to propellant degradation occurring after long-term exposure to high absolute humidity, high temperatures, and high 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: GM will notify owners, and dealers will replace the front passenger air bag inflator with an alternate one, free of charge. Interim letters notifying owners of the safety risk were mailed on February 23, 2021. Second notification letters will be mailed once the remedy is available. Owner notification letters were mailed on September 20, 2021. Owners may contact Chevrolet customer service at 1-800-222-1020, Cadillac customer service at 1-800-458-8006, and GMC customer service at 1-800-462-8782. GM's number for this recall is N212328780.
21V053000 · Air Bags:frontal:passenger Side:inflator Module
Feb 5, 2021
General Motors, LLC (GM) is recalling certain 2013 Cadillac Escalade, Escalade ESV, and Escalade EXT, Chevrolet Avalanche, Silverado 1500, Silverado 2500/3500, Suburban, Tahoe, GMC Sierra 1500, Sierra 2500/3500, Yukon, and Yukon XL vehicles originally 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." Additionally, GM is recalling certain 2010 Cadillac Escalade, Escalade ESV, and Escalade EXT, Chevrolet Avalanche, Silverado 1500, Silverado 2500/3500, Suburban, Tahoe, GMC Sierra 1500, Sierra 2500/3500, Yukon, and Yukon XL vehicles originally sold, or 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." Additionally, GM is recalling certain 2009 Cadillac Escalade, Escalade ESV, and Escalade EXT, Chevrolet Avalanche, Silverado 1500, Silverado 2500/3500, Suburban, Tahoe, GMC Sierra 1500, Sierra 2500/3500, Yukon, and Yukon XL vehicles originally sold, or 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."
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: GM will notify owners, and dealers will replace the front passenger air bag inflator with an alternate one, free of charge. Interim letters notifying owners of the safety risk were mailed on February 24, 2021. Second notification letters will be mailed once the remedy is available. Owner notification letters were mailed on May 11, 2021. Owners may contact Cadillac customer service at 1-800-458-8006; Chevrolet customer service at 1-800-222-1020; and GMC customer service at 1-800-462-8782. GM's number for this recall is N212328790.
18V267000 · Equipment
Apr 26, 2018
General Motors LLC (GM) is recalling certain 2009-2014 Chevrolet Silverado HD and GMC Sierra HD, 2009 GMC Topkick 5000, 6000, 7000 and 8000 Series and Isuzu F Series, and 2009-2018 Chevrolet Express, and GMC Savana vehicles, equipped with certain Plastic-Handle Fire Extinguishers or Push Button 'Pindicator' Fire Extinguishers. These extinguishers may become clogged, preventing the extinguisher from discharging as expected or requiring excessive force to activate the extinguisher. Additionally, in certain models, the nozzle may detach from the valve assembly with enough force that it could cause injury and also render the product inoperable. For a full list of the affected fire extinguisher models visit: https://static.nhtsa.gov/odi/rcl/2017/RMISC-17E062-5427.pdf
Consequence & remedy
Consequence: In the event of a fire, if the fire extinguisher does not function properly, it can increase the risk of injury.
Remedy: GM will notify owners, instructing them to contact Kidde to get a replacement fire extinguisher, free of charge. The recall began June 11, 2018. Owners may contact Chevrolet customer service at 1-800-222-1020, GMC customer service at 1-800-462-8782, and Isuzu customer service at 1-866-441-9638. GM's number for this recall is 18146.
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
2DP22005 · Pedestrian Alert Sounds
Opened Jan 27, 2023 · Closed Aug 7, 2023
Status: closed (inferred from source dates) · Electrical System:propulsion System
NHTSA received a petition on or about July 18, 2022, requesting that Federal Motor Vehicle Safety Standard (FMVSS) 141 be applied to all electric and hybrid vehicles operating in the United States. The petition can be reviewed at NHTSA.gov under ODI Number 11486072. FMVSS 141 establishes performance requirements for pedestrian alert sounds for motor vehicles. The standard applies to hybrid and electric vehicles that have a gross vehicle weight rating of 4,536 KG or less or are defined as low-speed vehicles. The standard became fully applicable to all such vehicles manufactured on or after March 1, 2021.On January 27, 2023, NHTSA opened Defect Petition (DP) 22-005 to evaluate the subject matter described in the petition. On June 24, 2023 and as supplemented on June 25, 2023, the petitioner notified NHTSA he was withdrawing his petition. The petitioner indicated that, based on his review of data, there is no justification for asserting potential benefits that could be derived from actions sought by my petition. Based on the petitioner's withdrawal, DP22-005 is closed. Closure of this DP does not represent a determination by NHTSA regarding the subject matter of the petition.
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.
Illustration