← New search

2008 Chevrolet Suburban

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2008 Chevrolet Suburban do not stand out strongly from the model-year median of 118.

About this comparison →

When problems were reported

Mileage at the reported incident

113 reports with mileage · 100 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 96 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Structure. Review the 30 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine. Review the 25 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

3 crash reports0 fire reports6 injury reports

Unknown Or Other complaints

38 reports
Clear category filter
80,000 miles · Jan 13, 2016
Air BagsUnknown Or Other

THE DASHBOARD HAS A SERIES OF MAJOR CRACKS FORWARD OF THE STEERING WHEEL AND A NUMBER OF CRACKS AROUND THE PASSENGER FRONT AIRBAG. THE DASHBOARD SEEMS EXTREMELY BRITTLE AND IS NOW QUITE "FLIMSY" AND VIBRATES AND/OR BOUNCES UP AND DOWN WHILE DRIVING. THIS HAS HAPPENED OVER TIME. WE HAVE NOT PHYSICALLY BEEN IN THE VEHICLE WHEN…

Read full complaint

THE DASHBOARD HAS A SERIES OF MAJOR CRACKS FORWARD OF THE STEERING WHEEL AND A NUMBER OF CRACKS AROUND THE PASSENGER FRONT AIRBAG. THE DASHBOARD SEEMS EXTREMELY BRITTLE AND IS NOW QUITE "FLIMSY" AND VIBRATES AND/OR BOUNCES UP AND DOWN WHILE DRIVING. THIS HAS HAPPENED OVER TIME. WE HAVE NOT PHYSICALLY BEEN IN THE VEHICLE WHEN A CRACK FORMED OR PROPAGATED. IT APPEARS THAT THE DASHBOARD WOULD LIKELY SHATTER UPON IMPACT THUS THROWING SHRAPNEL THROUGHOUT THE VEHICLE.

NHTSA ODI #10819969

28,000 miles · Jan 5, 2016
Unknown Or Other

I HAVE SEVERAL CRACKS IN MY DASHBOARD. I TOOK MY CAR TO DON RINGLER CHEVROLET IN TEMPLE, TX AND THEY TOLD ME THERE WAS NOTHING THEY COULD DO AND THAT IT WAS NOT RECALLED NOR COVERED UNDER WARRANTY. MY ENTIRE DASH MOVES WHEN YOU TOUCH IT AND I'M AFRAID THAT EITHER THE AIRBAGS WILL GO OFF WHILE I'M DRIVING OR WON'T DEPLOY IF I A…

Read full complaint

I HAVE SEVERAL CRACKS IN MY DASHBOARD. I TOOK MY CAR TO DON RINGLER CHEVROLET IN TEMPLE, TX AND THEY TOLD ME THERE WAS NOTHING THEY COULD DO AND THAT IT WAS NOT RECALLED NOR COVERED UNDER WARRANTY. MY ENTIRE DASH MOVES WHEN YOU TOUCH IT AND I'M AFRAID THAT EITHER THE AIRBAGS WILL GO OFF WHILE I'M DRIVING OR WON'T DEPLOY IF I AM IN A WRECK. THESE CRACKS HAVE INCREASED IN SIZE OVER TIME. THE SMALL ONE IS THE NEWEST CRACK THAT APPEARED OVER CHRISTMAS. I FIRST DISCOVERED THE CRACK RIGHT ABOVE THE STEERING WHEEL IN FEBRUARY 2010. AT THE TIME, MY CAR WAS ONLY 1 1/2 YEARS OLD. I SPECIAL ORDERED MY SUBURBAN IN THE SUMMER OF 2008.

NHTSA ODI #10818210

48,000 miles · Jan 5, 2016
Air BagsUnknown Or Other

THE DASHBOARD IS CRACKED AND BROKEN AT PASS. AIRBAG AND CENTER OF THE DASH, AND IS REALLY BROKEN ABOVE THE CONSOLE AREA.

NHTSA ODI #10818074

172,000 miles · Oct 20, 2015
Unknown Or Other

MY DASHBOARD CAP IS CRACKED ON THE DRIVERS SIDE JUST ON THE LEFT CORNER OF THE DOME AND ALSO ON THE PASSENGER SIDE NEAR THE AIRBAG. I AM CONCERNED THE AIRBAGS MAY NOT DEPLOY CORRECTLY OR THE DASH MAY BREAK FREE AND MY VISIBILITY WILL BE COMPROMISED.

NHTSA ODI #10783855

56,000 miles · Sep 9, 2015
Unknown Or Other

ON JULY 7TH 2015, I WENT TO MY VEHICLE AND NOTICED A CRACK IN THE DASH ON THE DRIVERS SIDE, SUBSEQUENTLY THE PASSENGER SIDE CRACKED. I CONSIDER THIS TO BE A HAZARDOUS SITUATION BECAUSE IN THE EVENT OF AN AIRBAG RELEASE SMALL PIECES OF THE CHEAP PLASTIC USED IN THE DASH WOULD BE PROPELLED FORTH CAUSING INJURY. I NOTIFIED MY DEAL…

Read full complaint

ON JULY 7TH 2015, I WENT TO MY VEHICLE AND NOTICED A CRACK IN THE DASH ON THE DRIVERS SIDE, SUBSEQUENTLY THE PASSENGER SIDE CRACKED. I CONSIDER THIS TO BE A HAZARDOUS SITUATION BECAUSE IN THE EVENT OF AN AIRBAG RELEASE SMALL PIECES OF THE CHEAP PLASTIC USED IN THE DASH WOULD BE PROPELLED FORTH CAUSING INJURY. I NOTIFIED MY DEALERSHIP AND WAS QUOTED $1365 FOR A REPLACEMENT DASH WITH GM OFFERING A 50/50 SPLIT ON THE COST. IF YOU'RE OFFERING TO PAY PART OF THE COST IT'S BECAUSE YOU ARE AWARE OF THE PROBLEM. I ALSO UNDERSTAND THAT THE REPLACEMENT DASHES ARE CRACKING ALSO. POOR QUALITY COMPONENTS MAKE A POOR QUALITY PRODUCT! MY 2008 SUBURBAN IS GARAGE KEPT WITH 58,600 MILES ON IT. I ONLY USE IT FOR VACATIONS.

NHTSA ODI #10762534

90,000 miles · Oct 22, 2014
Unknown Or Other

DASHBOARD HAS SEVERE CRACKS IN MULTIPLE PLACES.

NHTSA ODI #10649236

36,000 miles · Jun 29, 2011
Unknown Or Other

I OWN A 2008 CHEVY SUBURBAN LTZ WITH 37K MILES. THE REAR DOOR LOCK ACTUATORS FAILED AT 36K MILES. THE FAULTY DOOR LOCK ACTUATORS PREVENT LOCKING OR UNLOCKING OF THE DOORS FROM THE DRIVERS SEAT. AS I HAVE SMALL CHILDREN, I FEEL IT IS A SAFETY ISSUE TO DRIVE WITH UNLOCKED DOORS. AFTER RESEARCHING THIS ISSUE I DISCOVERED THE PROBL…

Read full complaint

I OWN A 2008 CHEVY SUBURBAN LTZ WITH 37K MILES. THE REAR DOOR LOCK ACTUATORS FAILED AT 36K MILES. THE FAULTY DOOR LOCK ACTUATORS PREVENT LOCKING OR UNLOCKING OF THE DOORS FROM THE DRIVERS SEAT. AS I HAVE SMALL CHILDREN, I FEEL IT IS A SAFETY ISSUE TO DRIVE WITH UNLOCKED DOORS. AFTER RESEARCHING THIS ISSUE I DISCOVERED THE PROBLEM TO BE WIDESPREAD ON A NUMBER OF CHEVROLET VEHICLES. PLEASE REFERENCE THE FOLLOWING INTERNET FORUM DISCUSSIONS : HTTP://WWW.GM-TRUCKS.COM/FORUMS/INDEX.PHP?SHOWTOPIC=98284&ST=165 HTTP://TOWNHALL-TALK.EDMUNDS.COM/DIRECT/VIEW/.F206D4B/75#MSG75 I SUGGEST THE NHTSA LOOK INTO THIS ISSUE AND MANDATE A RECALL AND THE INSTALLATION OF A MORE RELIABLE DOOR LOCK ACTUATOR. PLEASE LET ME KNOW HOW I CAN BE OF FURTHER ASSISTANCE IN THIS MATTER.

NHTSA ODI #10409948

25,000 miles · Feb 8, 2011
Unknown Or Other

ALL DOOR ACUATORS FAULTY. DEALER REPLACED 1 REAR DOOR AT PURCHASE (USED). OVER NEXT 12 MONTHS ALL HAVE FAILED. I HAVE NO WAY TO LOCK OR UNLOCK DOORS EXCEPT MANUALLY . (KEYFOB REMOTE AND DRIVER DOOR NOT WORKING). THIS IS A SAFETY ISSUE THAT CHEVROLET SHOULD FIXED REGARDLESS OF WARRENTY. PLEASE PURSUE WITH GM/CHEVROLET AS THE…

Read full complaint

ALL DOOR ACUATORS FAULTY. DEALER REPLACED 1 REAR DOOR AT PURCHASE (USED). OVER NEXT 12 MONTHS ALL HAVE FAILED. I HAVE NO WAY TO LOCK OR UNLOCK DOORS EXCEPT MANUALLY . (KEYFOB REMOTE AND DRIVER DOOR NOT WORKING). THIS IS A SAFETY ISSUE THAT CHEVROLET SHOULD FIXED REGARDLESS OF WARRENTY. PLEASE PURSUE WITH GM/CHEVROLET AS THEIR CUSTOMER SERVICE RESPONSE IS TO TAKE TO THE DEALER. $250/DOOR.

NHTSA ODI #10382029

Official recalls

4

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.

10V240000 · Electrical System

Jun 4, 2010

GM IS RECALLING CERTAIN MODEL YEAR 2006-2009 BUICK, LUCERNE; CADILLAC DTS; HUMMER H2; MODEL YEAR 2008-2009 BUICK ENCLAVE; CADILLAC CTS; MODEL YEAR 2007-2009 CADILLAC ESCALADE, ESCALADE ESV, ESCALADE EXT; CHEVROLET AVALANCHE, SILVERADO, SUBURBAN, TAHOE; GMC ACADIA, SIERRA, YUKON, YUKON XL; SATURN OUTLOOK; AND MODEL YEAR 2009 CHEVROLET TRAVERSE VEHICLES EQUIPPED WITH A HEATED WASHER FLUID SYSTEM (HWFS). A RECALL WAS IMPLEMENTED IN 2008 TO ADD A FUSE TO THE CONTROL CIRCUIT HARNESS TO ADDRESS THE POTENTIAL CONSEQUENCES OF A PRINTED CIRCUIT BOARD (PCB) ELECTRICAL SHORT. HOWEVER, THERE HAVE BEEN NEW REPORTS OF THERMAL INCIDENTS ON HWFS MODULES AFTER THIS IMPROVEMENT WAS INSTALLED. THESE INCIDENTS RESULTED FROM A NEW FAILURE MODE ATTRIBUTED TO THE DEVICE'S THERMAL PROTECTION FEATURE. THE SIGNIFICANCE VARIES FROM MINOR DISTORTION TO CONSIDERABLE MELTING OF THE PLASTIC AROUND THE HWFS FLUID CHAMBER.

Consequence & remedy

Consequence: IT IS POSSIBLE FOR THE HEATED WASHER MODULE TO IGNITE AND A FIRE MAY OCCUR.

Remedy: DEALERS WILL PERMANENTLY DISABLE AND REMOVE THE HEATED WASHER FLUID MODULE. AN UPDATED PAGE FOR THE OWNER MANUAL WILL BE PROVIDED AND INSERTED IN THE OWNER MANUAL TO DOCUMENT THAT THE FEATURE HAS BEEN PERMANENTLY DISABLED AND REMOVED FROM THE VEHICLE. THE SAFETY RECALL BEGAN ON JUNE 11, 2010. OWNERS MAY CONTACT BUICK AT 1-866-608-8080, CADILLAC AT 1-866-982-2339, CHEVROLET AT 1-800-630-2438, SATURN AT 1-800-972-8876, GMC AT 1-866-996-9463 AND HUMMER AT 1-800-732-5493 OR AT THE OWNER CENTER AT WWW.GMOWNERCENTER.COM.

08V441000 · Electrical System

Aug 28, 2008

GM IS RECALLING 857,735 MY 2006-2008 BUICK LUCERNE; CADILLAC DTS; HUMMER H2; MY 2007-2008 CADILLAC ESCALADE, ESCALADE ESV, ESCALADE EXT; CHEVROLET AVALANCHE, SILVERADO, SUBURBAN, TAHOE; GMC ACADIA, SIERRA, YUKON, YUKON XL, SATURN OUTLOOK; AND MY 2008 BUICK ENCLAVE VEHICLES EQUIPPED WITH A HEATED WIPER WASHER FLUID SYSTEM. A SHORT CIRCUIT ON THE PRINTED CIRCUIT BOARD FOR THE WASHER FLUID HEATER MAY OVERHEAT THE CONTROL-CIRCUIT GROUND WIRE.

Consequence & remedy

Consequence: THIS MAY CAUSE OTHER ELECTRICAL FEATURES TO MALFUNCTION, CREATE AN ODOR, OR CAUSE SMOKE INCREASING THE RISK OF A FIRE.

Remedy: DEALERS WILL INSTALL A WIRE HARNESS WITH AN IN-LINE FUSE FREE OF CHARGE. THE RECALL BEGAN ON SEPTEMBER 12, 2008. OWNERS MAY CONTACT BUICK AT 1-866-608-8080; CADILLAC AT 1-800-982-2339 OR HTTP://WWW.CADILLAC.COM; CHEVROLET AT 1-800-630-2438; SATURN AT 1-800-972-8876 OR HTTP://WWW.SATURN.COM, GMC AT 1-866-996-9436; OR HUMMER AT 1-800-732-5493; OR THROUGH THEIR WEBSITE AT <A HREF=HTTP://WWW.GMOWNERCENTER.COM>HTTP://WWW.GMOWNERCENTER.COM</A> .

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.