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2009 Chevrolet Silverado 1500

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2009 Chevrolet Silverado 1500 do not stand out strongly from the model-year median of 525.

About this comparison →

When problems were reported

Mileage at the reported incident

224 reports with mileage · 220 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 230 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Structure. Review the 54 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 43 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

9 crash reports6 fire reports3 injury reports

Air Bags complaints

230 reports
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Mileage unknown · Nov 2, 2017
Air Bags

TL* TAKATA RECALL. THE CONTACT OWNS A 2009 CHEVROLET SILVERADO 1500. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 16V381000 (AIR BAGS) AND STATED THAT THE PART WAS NOT AVAILABLE WITHIN A REASONABLE TIME FRAME TO SCHEDULE THE RECALL REPAIR. THE DEALER (LITHIA CHEVROLET OF REDDING, 200 E CYPRESS AVE, REDDING, CA 960…

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TL* TAKATA RECALL. THE CONTACT OWNS A 2009 CHEVROLET SILVERADO 1500. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 16V381000 (AIR BAGS) AND STATED THAT THE PART WAS NOT AVAILABLE WITHIN A REASONABLE TIME FRAME TO SCHEDULE THE RECALL REPAIR. THE DEALER (LITHIA CHEVROLET OF REDDING, 200 E CYPRESS AVE, REDDING, CA 96002, (877) 826-5557) DID NOT GIVE A SPECIFIC DATE FOR WHEN THE PART WOULD BECOME AVAILABLE. THE MANUFACTURER WAS CONTACTED AND COULD NOT PROVIDE AN ESTIMATED DATE FOR WHEN THE VEHICLE WOULD RECEIVE THE RECALL REPAIR. THE CONTACT WAS NOT EXPERIENCING A FAILURE. VIN TOOL CONFIRMS PARTS NOT AVAILABLE. *LN

NHTSA ODI #11042751

Mileage unknown · Nov 2, 2017
Air Bags

"TAKATA RECALL"

NHTSA ODI #11042745

Mileage unknown · Nov 2, 2017
Air Bags

TL* TAKATA RECALL. THE CONTACT OWNS A 2009 CHEVROLET SILVERADO 1500. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 16V381000 (AIR BAGS); HOWEVER, THE PARTS DO TO THE REPAIR WERE UNAVAILABLE. THE CONTACT RECEIVED THE RECALL NOTICE OVER A YEAR AGO. THE DEALER (BEATY CHEVROLET CO, 9615 PARKSIDE DRIVE, KNOXVILLE, TN 37…

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TL* TAKATA RECALL. THE CONTACT OWNS A 2009 CHEVROLET SILVERADO 1500. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 16V381000 (AIR BAGS); HOWEVER, THE PARTS DO TO THE REPAIR WERE UNAVAILABLE. THE CONTACT RECEIVED THE RECALL NOTICE OVER A YEAR AGO. THE DEALER (BEATY CHEVROLET CO, 9615 PARKSIDE DRIVE, KNOXVILLE, TN 37922 (865) 693-7712) WAS CONTACTED AND CONFIRMED THAT THE PARTS WERE NOT AVAILABLE FOR THE RECALL REMEDY. THE MANUFACTURER WAS NOT MADE AWARE OF THE ISSUE. THE CONTACT RECEIVED A POSTCARD FROM TK HOLDINGS, ALERTING HIM THAT THEY FILED FOR BANKRUPTCY. THE CONTACT HAD NOT EXPERIENCED A FAILURE. VIN TOOL CONFIRMS PARTS NOT AVAILABLE.

NHTSA ODI #11042580

Mileage unknown · Nov 1, 2017
Air Bags

TL* TAKATA RECALL. THE CONTACT OWNS A 2009 CHEVROLET SILVERADO 1500. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 16V381000 (AIR BAGS). THE PARTS TO DO THE REPAIR WERE UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE CONTACT CALLED DON RINGLER TO…

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TL* TAKATA RECALL. THE CONTACT OWNS A 2009 CHEVROLET SILVERADO 1500. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 16V381000 (AIR BAGS). THE PARTS TO DO THE REPAIR WERE UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE CONTACT CALLED DON RINGLER TOYOTA AT (254) 774-6500 (7777 S GENERAL BRUCE DR, TEMPLE, TX 76502) WHERE IT WAS CONFIRMED THAT THE PARTS WERE NOT AVAILABLE FOR THE RECALL REMEDY. THE MANUFACTURER WAS NOT NOTIFIED OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. VIN TOOL CONFIRMS PARTS NOT AVAILABLE/PARTS DISTRIBUTION DISCONNECT.

NHTSA ODI #11042009

Mileage unknown · Nov 1, 2017
Air Bags

THE NOTIFICATION FOR REPLACEMENT OF THE AIRBAGS WAS RECEIVED PRIOR TO THE OCTOBER 2017 MAIL OUT NOTIFICATION REGARDING TK HOLDINGS INC., CHAPTER 11. I VISITED THE DEALERSHIP WHERE I PURCHASED THE TRUCK AND REQUESTED THE AIRBAGS BE REPLACED. THEY WOULD NOT REPLACE THEM. ON MY NEXT SERVICE (OIL CHANGE) FOR THE TRUCK, I MADE THE …

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THE NOTIFICATION FOR REPLACEMENT OF THE AIRBAGS WAS RECEIVED PRIOR TO THE OCTOBER 2017 MAIL OUT NOTIFICATION REGARDING TK HOLDINGS INC., CHAPTER 11. I VISITED THE DEALERSHIP WHERE I PURCHASED THE TRUCK AND REQUESTED THE AIRBAGS BE REPLACED. THEY WOULD NOT REPLACE THEM. ON MY NEXT SERVICE (OIL CHANGE) FOR THE TRUCK, I MADE THE REQUEST AGAIN FOR THE AIRBAGS TO BE REPLACED AND IT WAS NOT DONE. I LATER NOTICED A CRACK IN THE DASHBOARD PANEL AND BROUGHT THAT TO THE ATTENTION OF THE DEALERSHIP. NOTHING WAS DONE. THE DEALERSHIP IS BOB HEMBREE CHEVROLET IN GUNTERSVILLE, ALABAMA. I NOW RECEIVE THIS NOTICE AND WOULD LIKE TO TAKE ACTION TO GET THE AIRBAGS REPLACED AND THE DASH REPAIRED.

NHTSA ODI #11041934

Mileage unknown · Oct 30, 2017
Air Bags

"TAKATA RECALL"-I'VE BEEN TOLD BY THE DEALERS THAT THE AIR BAG ISN'T BEING MADE AVAILABLE TO THEM YET,THE RECALL NOTICE I RECEIVED SAID THE MANUFACTURER AND DEALERS HAD UNTIL AUGUST 31ST TO COMPLY WITH THE RECALL REQUIREMENTS TO REPLACE THE AIR BAGS AND WHILE EVERYONE IS SAYING IT'S OK I WORRY EVERYDAY I DRIVE MY VEHICLE.THE DEA…

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"TAKATA RECALL"-I'VE BEEN TOLD BY THE DEALERS THAT THE AIR BAG ISN'T BEING MADE AVAILABLE TO THEM YET,THE RECALL NOTICE I RECEIVED SAID THE MANUFACTURER AND DEALERS HAD UNTIL AUGUST 31ST TO COMPLY WITH THE RECALL REQUIREMENTS TO REPLACE THE AIR BAGS AND WHILE EVERYONE IS SAYING IT'S OK I WORRY EVERYDAY I DRIVE MY VEHICLE.THE DEALER TELLS ME THEY HAVE AIR BAGS BUT NONE FOR THE RECALL PROGRAM AND DUE TO THE BANKRUPTCY THEY WON'T GET PAID.

NHTSA ODI #11041319

Mileage unknown · Oct 30, 2017
Air Bags

SINCE SUBMITTING MY PREVIOUS SAFETY COMPLAINT, MY "SERVICE AIRBAG SYSTEM" MESSAGE IS NOW DISPLAYED CONTINUOUSLY AND LONGER INTERMITTENTLY DISPLAYED. I HAVE ALSO RECEIVED WRITTEN CORRESPONDENCE FROM TAKATA ANNOUNCING THEIR CHAPTER 11 FILING AND CONFIRMATION THAT MY VEHICLE MAY HAVE A DEFECTIVE AIRBAG. THE NOTICE ALSO ADVISED ME T…

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SINCE SUBMITTING MY PREVIOUS SAFETY COMPLAINT, MY "SERVICE AIRBAG SYSTEM" MESSAGE IS NOW DISPLAYED CONTINUOUSLY AND LONGER INTERMITTENTLY DISPLAYED. I HAVE ALSO RECEIVED WRITTEN CORRESPONDENCE FROM TAKATA ANNOUNCING THEIR CHAPTER 11 FILING AND CONFIRMATION THAT MY VEHICLE MAY HAVE A DEFECTIVE AIRBAG. THE NOTICE ALSO ADVISED ME TO SCHEDULE AN APPOINTMENT WITH A LOCAL CAR DEALER TO GET THE DEFECT REPAIRED AT NO COST TO ME. I SCHEDULED AN APPOINTMENT ON 10-30-2017 FOR THE REPAIR WORK BUT WAS TOLD BY THE DEALERSHIP THAT THEY COULD NOT COMPLETE THE REPAIRS AS "GM HAS NOT ISSUED A FIX YET". WHAT IS TAKING GM SO LONG TO ADDRESS THIS CLEAR, WELL DOCUMENTED SAFETY THREAT? IT HAS BEEN AT LEAST A YEAR SINCE MY VEHICLE WAS ADDED TO THE RECALL. SHOULD I NOT DRIVE THE VEHICLE? CAN THE AIRBAG BE DISABLED? GM IS NOT OFFERING ANY TIMEFRAME FOR RESOLUTION NOR ARE THEY PROVIDING GUIDANCE ON WHAT CAR OWNERS SHOULD DO WHILE THEY FINALIZE A SOLUTION. I DO NOT HAVE THE MONEY TO PAY FOR THIS OUT OF POCKET AND DO NOT HAVE AN ALTERNATIVE FORM OF TRANSPORTATION.

NHTSA ODI #11041120

Mileage unknown · Oct 29, 2017
Air Bags

TAKATA RECALL. I BROUGHT MY PICKUP TO CHEVROLET DEALER BUT THEY HAS KEPT TELLING US THERE IS NO REPAIR FOR THE AIR BAG ISSUE. THEIR RECOMMENDATIONS WAS NOT TO USE THE CAR!!

NHTSA ODI #11040901

Mileage unknown · Oct 29, 2017
Air Bags

RECALL

NHTSA ODI #11040861

144,000 miles · Oct 28, 2017
Air Bags

"TAKATA RECALL" I CONTACTED BOTH GM AND THE LOCAL GM DEALERSHIP ABOUT RECALL 49151 AND PRESENTLY THERE IS NO REMEDY OR FIX SUPPLIED BY GENERAL MOTORS FOR THIS RECALL. SEEMS THAT NO DECISION HAS BEEN MADE SO WE ARE ALL IN LIMBO AS TO THE RECALL.

NHTSA ODI #11040684

Official recalls

3

21V050000 · 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.

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

2

DP22005 · 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.