IllustrationTHE DASH CRACKED ON PASSENGER SIDE. NO WARNING SIGNS OF IT HAPPENING AND SHARP. CAR WAS NOT RUNNING AT THE TIME IT CRACKED.MY VEHICLE ONLY HAD 46,000 MILES AT THE TIME.
2011 Chevrolet Tahoe
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 2011 Chevrolet Tahoe do not stand out strongly from the model-year median of 246.
About this comparison →How this year compares
Owner complaints by model year
Compare all Tahoe 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
150–25K
6025–50K
8550–75K
6175–100K
44100–150K
9150K+
274 reports with mileage · 172 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 185 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Structure. Review the 81 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 17 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
5 crash reports2 fire reports3 injury reports
Structure complaints
81 reportsPLASTIC DASHBOARD IS CRACKING AND CREATING POTENTIAL PROJECTILE PIECES OF SHARP PLASTIC IN CASE OF IMPACT. CRACKING NEAR THE PASSENGER SIDE AIRBAG AND NEAR THE DRIVER SIDE INSTRUMENT CLUSTER. CRACKS JUST SHOWED UP, THERE WAS NOTHING VISIBLE BEFORE THEM AND SUDDENLY THEY ARE THERE.
NOTICED MAJOR CRACK ON DASHBOARD BOTH ON PASSENGER AND DRIVER SIDE. THIS JUST APPPEARED CAR WAS PARKED FOR THE NIGHT WENT OUT IN THE MORNING AND NOTICED THE CRACK. THE CAR HAS NOT BEEN INVOLVED IN ANY ACCIDENTS OR ABUSED. THIS IS A CAR THAT HAD BEEN KEPT VERY CLEAN BOTH INTERIOR AND EXTERIOR.
THE DASHBOARD ON MY TAHOE HAS BEGAN TO CRACK. IT ORIGINALLY BEGAN TO CRACK ON THE DRIVERS SIDE AND HAS SPREAD UP OVER THE CONTROL PANEL. LAST WEEK I NOTICED A CRACK ON THE PASSENGER SIDE THAT LEADS RIGHT TO THE AIRBAG. NOW THAT THE AIRBAG IS INVOLVED I DEFINITELY FEEL THAT THIS IS A MAJOR SAFETY HAZARD. SEEING THE WIDESPREAD…
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THE DASHBOARD ON MY TAHOE HAS BEGAN TO CRACK. IT ORIGINALLY BEGAN TO CRACK ON THE DRIVERS SIDE AND HAS SPREAD UP OVER THE CONTROL PANEL. LAST WEEK I NOTICED A CRACK ON THE PASSENGER SIDE THAT LEADS RIGHT TO THE AIRBAG. NOW THAT THE AIRBAG IS INVOLVED I DEFINITELY FEEL THAT THIS IS A MAJOR SAFETY HAZARD. SEEING THE WIDESPREAD COMPLAINTS ABOUT THIS HAPPENING TO OTHERS I FEEL THIS SHOULD BE A RECALL. $70,000 VEHICLES SHOULD NOT HAVE PLASTIC DASHBOARDS THAT CRUMBLE AWAY. UPDATED 09/09/15*LJ
WHILE DRIVING ON CITY STREETS SEVERAL DAYS AGO I HEARD A LOUD POPPING SOUND AS IF AN OBJECT HAS HIT THE WINDSHIELD. AFTER STOPPING TO INSPECT FOR DAMAGE AND NOT FINDING ANY GLASS CRACKS OR CHIPS I DROVE ON. SHORTLY THEREAFTER I NOTICED A NOISE COMING FROM THE DASH AREA AND FOUND THAT THE CENTER PORTION OF THE DASHBOARD AT THE …
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WHILE DRIVING ON CITY STREETS SEVERAL DAYS AGO I HEARD A LOUD POPPING SOUND AS IF AN OBJECT HAS HIT THE WINDSHIELD. AFTER STOPPING TO INSPECT FOR DAMAGE AND NOT FINDING ANY GLASS CRACKS OR CHIPS I DROVE ON. SHORTLY THEREAFTER I NOTICED A NOISE COMING FROM THE DASH AREA AND FOUND THAT THE CENTER PORTION OF THE DASHBOARD AT THE RADIO SPEAKER WAS LOOSE DUE TO FACT THAT THE TAB WHICH IS DESIGNED TO HOLD THE CENTER FASTENER WAS BROKEN BY THE WEIGHT AND MOVEMENT OF THE SPEAKER. UPON FURTHER EXAMINATION I FOUND THAT THE DASHBOARD WAS CRACKED AT THE UPPER LEFT HAND CORNER OF THE AIRBAG COMPARTMENT ON THE PASSENGER SIDE. THE VEHICLE WAS TAKEN TO A LOCAL GM DEALER THIS MORNING DUE TO SAFETY CONCERNS WITH REGARDS TO THE AIR BAGS EITHER BEING DEPLOYED ACCIDENTALLY OR IN THE EVENT OF A REAL ACCIDENT, DAMAGE TO THE AIR BAGS DUE TO THE BROKEN EDGES OF THE PLASTIC DASH MATERIAL. FURTHERMORE, PERSONAL INJURY COULD OCCUR AS A RESULT OF FLYING DEBRIS FROM THE LOOSE, BROKEN OR BRITTLE PLASTIC PIECES IMMEDIATELY ADJACENT TO THE AIR BAG COMPARTMENT. ACCORDING TO THE LOCAL DEALER THEY ARE AND HAVE BEEN AWARE OF THESE TYPE OF FAILURE TO THE DASH COMPONENTS FOR SEVERAL YEARS (DATING BACK TO 2005) ON THIS VEHICLE BUT TO DATE THEY HAVE ISSUED NO BULLETINS OR RECALL NOTICES. THIS INFORMATION IS ALSO DOCUMENTED HERE ON YOUR WEBSITE WHERE I WAS ABLE TO FIND AT LEAST 15 SIMILAR COMPLAINTS FILED WITH NHTSA WITHIN JUST THE LAST 24 MONTHS MOST OF WHICH IDENTIFY THE EXACT SAME LOCATION OF FAILURE TO BE THE UPPER LEFT HAND CORNER OF THE DASH ADJACENT TO THE AIR BAG COMPARTMENT. IT SEEMS OBVIOUS THAT GM HAS NO DESIRE TO ADDRESS THIS ISSUE ON THEIR OWN WITHOUT BEING PUSHED TO DO SO. YOUR ATTENTION TO THIS ISSUE WOULD BE GREATLY APPRECIATED BY MANY, MANY GM OWNERS.
TL* THE CONTACT OWNS A 2011 CHEVROLET TAHOE. THE CONTACT STATED THAT THE REAR TAILGATE LOCKED ON THE CONTACT WHILE HE ATTEMPTED TO REACH INTO THE REAR OF THE VEHICLE. THE VEHICLE WAS NOT DIAGNOSED AND THE CONTACT WAS NOT INJURED. THE MANUFACTURER WAS NOT NOTIFIED. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 59,000.
THE DASH ON MY TAHOE IS CRACKING. I HAVE DONE A LITTLE RESEARCH ONLINE AND FOUND IT IS QUITE COMMON, ESPECIALLY AROUND THE PASSENGER SIDE AIRBAG. I FEEL THIS IS DANGEROUS IF THE AIRBAG IS DEPLOYED. I BELIEVE IT WILL SEND PIECES OF THE DASH AT THE OCCUPANTS OF MY VEHICLE. *TR
I NOTICED ABOUT A MONTH AGO THAT MY TAHOE DASHBOARD WAS CRACKED ON TWO SPOTS. *TR
MY DASHBOARD CRACKED ON MY 2011 TAHOE ABOUT THE TIME MY 36000 MILE WARRANTY EXPIRED. *TR
SHORTLY AFTER BUYING MY USED TAHOE A CRACK DEVELOPED NEAR THE CORNER OF THE PASSENGER AIRBAG, FORMING A "Y" SHAPE WHICH LEAVES A SMALL, SHARP PIECE OF POTENTIAL SHRAPNEL IF THE AIRBAG WERE TO DEPLOY. I FEAR THIS ISSUE COULD CAUSE POTENTIALLY FATAL OUTCOMES DUE TO THE LIKELIHOOD OF THE BRITTLE PLASTIC BECOMING FLYING SHRAPNEL IN…
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SHORTLY AFTER BUYING MY USED TAHOE A CRACK DEVELOPED NEAR THE CORNER OF THE PASSENGER AIRBAG, FORMING A "Y" SHAPE WHICH LEAVES A SMALL, SHARP PIECE OF POTENTIAL SHRAPNEL IF THE AIRBAG WERE TO DEPLOY. I FEAR THIS ISSUE COULD CAUSE POTENTIALLY FATAL OUTCOMES DUE TO THE LIKELIHOOD OF THE BRITTLE PLASTIC BECOMING FLYING SHRAPNEL IN THE EVENT OF AN ACCIDENT AND AIRBAG DEPLOYMENT. THIS IS A WELL REPORTED AND WELL KNOWN ISSUE WITH ALL GMT900 VEHICLES. GM NEEDS TO RECALL THESE DASHBOARDS! *TR
Official recalls
521V050000 · 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.
21V054000 · Air Bags:frontal:passenger Side:inflator Module
Feb 5, 2021
General Motors, LLC (GM) is recalling certain 2014 Cadillac Escalade, Escalade ESV, Chevrolet Silverado 2500, Silverado 3500, Suburban, Tahoe, GMC Sierra 2500, Sierra 3500, Yukon, and Yukon XL vehicles originally sold, or ever registered, in the states of AL, CA, FL, GA, HI, LA, MS, SC, TX, PR, AS, GU, the MP, and VI or "Zone A." Additionally GM is recalling certain 2011-2014 Cadillac Escalade, Escalade ESV, Chevrolet Silverado 2500, Silverado 3500, Suburban, Tahoe, GMC Sierra 2500, Sierra 3500, Yukon, Yukon XL and 2011-2013 Cadillac Escalade EXT, Chevrolet Avalanche, Silverado 1500, and GMC Sierra 1500 vehicles originally sold, or ever registered, in the states of AZ, AR, DE, DC, IL, IN, KS, KY, MD, MO, NE, NV, NJ, NM, NC, OH, OK, PA, TN, VA, and WV or "Zone B." Additionally, GM is recalling certain 2010-2014 Cadillac Escalade, Escalade ESV, Chevrolet Silverado 2500, Silverado 3500, Suburban, Tahoe, GMC Sierra 2500, Sierra 3500, Yukon, and Yukon XL and 2010-2013 Cadillac Escalade EXT, Chevrolet Avalanche, Silverado 1500, and GMC Sierra 1500 vehicles originally sold, or ever registered, in the states of AK, CO, CT, ID, IA, ME, MA, MI, MN, MT, NH, NY, ND, OR, RI, SD, UT, VT, WA, WI, and WY 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 25, 2021. Second notification letters will be mailed once the remedy is available. Owner notification letters were mailed to 40 VIN owners on May 11, 2021. A second owner notification letter was mailed to all other owners on January 24, 2022. 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 N212328800.
14V827000 · Electrical System:ignition
Dec 30, 2014
General Motors LLC (GM) is recalling certain model year 2011-2012 Cadillac Escalade, Escalade ESV, Escalade EXT, Chevrolet Avalanche, Silverado HD, Silverado LD, Suburban, Tahoe, GMC Sierra LD, Sierra HD, Yukon, and Yukon XL vehicles. In the affected vehicles, the ignition lock actuator may bind, making turning the key difficult or causing the ignition to get stuck in the "Start" position.
Consequence & remedy
Consequence: If stuck in the "Start" position, the ignition may suddenly snap back into the "Accessory" position, causing a loss of engine, steering, and braking power, increasing the risk of a vehicle crash. If the vehicle is in a crash, the air bags may not deploy, increasing the risk of occupant injury.
Remedy: GM will notify owners, and dealers will inspect and replace the ignition lock housing, as necessary, free of charge. The recall began on February 12, 2015. Owners may contact GM customer service at 1-800-458-8006 (Cadillac), 1-800-222-1020 (Chevrolet), or 1-800-462-8782 (GMC). GM's number for this recall is 14696 for the original equipment, and 14912 for the service replacement parts.
11V339000 · Steering:linkages
Jun 28, 2011
GM IS RECALLING CERTAIN MODEL YEAR 2011CADILLAC ESCALADE, ESCALADE ESV; CHEVROLET SILVERADO HD, SILVERADO LD, SUBURBAN, TAHOE; AND GMC SIERRA HD, SIERRA LD, YUKON, AND YUKON XL VEHICLES. THE INTERMEDIATE STEERING SHAFT ATTACHING BOLTS MAY NOT HAVE BEEN TIGHTENED TO THE PROPER SPECIFICATION.
Consequence & remedy
Consequence: THIS COULD ALLOW THE JOINTS TO SEPARATE, AND THE DRIVER COULD EXPERIENCE LOSS OF STEERING INCREASING THE RISK OF A CRASH.
Remedy: GM DEALERS WILL INSPECT AND ENSURE THAT THE INTERMEDIATE STEERING SHAFT BOLTS ARE TIGHTENED TO THE PROPER SPECIFICATION. THE SAFETY RECALL IS EXPECTED TO BEGIN ON OR ABOUT JULY 13, 2011. OWNERS MAY CONTACT CADILLAC AT 1-800-458-8006, CHEVROLET AT 1-800-630-2438 AND GMC AT 1-866-996-9463.
11V007000 · Suspension:rear:axle:spindle
Jan 6, 2011
GENERAL MOTORS IS RECALLING CERTAIN MODEL YEAR 2011 CADILLAC ESCALADE, ESCALADE ESV, ESCALADE EXT; CHEVROLET AVALANCHE, COLORADO, EXPRESS, SILVERADO, SUBURBAN, TAHOE; AND GMC CANYON, SIERRA, SAVANA, YUKON AND YUKON XL VEHICLES. THE REAR AXLE CROSS PINS WERE NOT PROPERLY HEAT TREATED AND COULD FRACTURE AND BECOME DISPLACED WITHIN THE REAR AXLE. SHOULD THE PIN SHIFT OUT OF POSITION, IT COULD CREATE AN INTERFERENCE CONDITION AND CAUSE THE REAR AXLE TO LOCK.
Consequence & remedy
Consequence: THE DRIVER MAY NOT BE ABLE TO MAINTAIN DIRECTIONAL CONTROL OF THE VEHICLE AND A CRASH COULD OCCUR WITHOUT WARNING.
Remedy: DEALERS WILL INSTALL A NEW REAR AXLE CROSS PIN FREE OF CHARGE. THE SAFETY RECALL BEGAN ON JANUARY 11, 2011. OWNERS MAY CONTACT CADILLAC AT 1-866-982-2339, CHEVROLET AT 1-800-630-2438, GMC AT 1-866-996-9463 AND AT THE OWNER CENTER AT WWW.GMOWNERCENTER.COM.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
1EA21002 · Desiccated Air Bag Inflator Rupture
Opened Sep 17, 2021 · No close date supplied
Status: open (inferred from source dates) · Air Bags:frontal:driver Side:inflator Module; Air Bags:frontal:passenger Side:inflator Module
From 2000 through 2017, Takata produced millions of air bag inflators using two types of phase-stabilized ammonium nitrate ("PSAN") propellant -- propellant 2004 and propellant 2004L. After prolonged exposure to high temperature cycles and humidity, inflators using propellant 2004 can degrade, causing the propellant to burn too quickly when ignited. The rapid burning can cause the inflator to rupture during deployment, potentially causing serious or even fatal injury to vehicle occupants. See 2016 Blomquist Report at www.nhtsa.gov/sites/nhtsa.gov/files/documents/expert_report-hrblomquist.pdf.Consequently, all frontal inflators using propellant 2004 that do not contain a "desiccant" (a substance that traps and holds moisture) in US vehicles are under recall. These "non-desiccated" inflators either have been or are required to be replaced.In some cases, the remedy part for these recalled inflators was, or will be, an inflator using either propellant 2004 or 2004L that does contain a desiccant. None of these "desiccated" remedy parts (which were installed in older model year vehicles) are currently under recall for a degradation concern. Certain subsets of desiccated PSAN inflators using propellant 2004 for use as original equipment, however, have been recalled for a degradation concern. All Takata inflators produced with propellant 2004L contain desiccant, and none of these desiccated inflators using propellant 2004L are under recall for a degradation concern. There have been no reported field ruptures in any non-recalled desiccated PSAN inflators.It is understood that desiccants fully saturate at some threshold, at which point any additional moisture will not be captured. This means the degradation process observed in non-desiccated inflators using propellant 2004 may also occur in non-recalled desiccated inflators using propellant 2004, assuming additional moisture enters the inflator and high temperature cycling occurs. Based on available information, desiccant saturation can occur within the first five years in the worst environments, and the time required for full saturation is affected by multiple factors. While no present safety risk has been identified, further work is needed to evaluate the future risk of non-recalled desiccated inflators using propellant 2004.Three entities -- Takata (now known as TK Global), the Independent Testing Coalition, and Exponent -- have been studying the long-term behavior of Takata desiccated PSAN inflators using propellant 2004L (as well as 2004) in the presence of moisture and temperature cycling. The research efforts, which include development of predictive modeling techniques and field sample analysis, are ongoing. To date, none of the researchers have identified field evidence showing that propellant 2004L is undergoing a degradation process that leads to aggressive deployment and potential rupture. However, the time in service of such inflators remains short compared to that of the inflators using propellant 2004. Further study is needed to assess the long-term safety of desiccated inflators using propellant 2004L.The Office of Defects Investigation is opening this investigation to examine whether a safety defect related to propellant degradation exists in non-recalled desiccated PSAN frontal inflators manufactured by Takata. This investigation will require extensive information on Takata production processes and surveys of inflators in the field. Lists of recall actions that may have used desiccated PSAN inflators as remedy parts, as well as the makes and models originally manufactured with them, is available with the downloadable version of this document (see nhtsa.gov/recalls?nhtsaId=EA21002 -- note this information is subject to change/revision as the investigation proceeds). This investigation does not supersede EA15-001, which remains open.
Additional source detail variants (2)
Air Bags:frontal:driver Side:inflator Module
From 2000 through 2017, Takata produced millions of air bag inflators using two types of phase-stabilized ammonium nitrate ("PSAN") propellant -- propellant 2004 and propellant 2004L. After prolonged exposure to high temperature cycles and humidity, inflators using propellant 2004 can degrade, causing the propellant to burn too quickly when ignited. The rapid burning can cause the inflator to rupture during deployment, potentially causing serious or even fatal injury to vehicle occupants. See 2016 Blomquist Report at www.nhtsa.gov/sites/nhtsa.gov/files/documents/expert_report-hrblomquist.pdf.Consequently, all frontal inflators using propellant 2004 that do not contain a "desiccant" (a substance that traps and holds moisture) in US vehicles are under recall. These "non-desiccated" inflators either have been or are required to be replaced.In some cases, the remedy part for these recalled inflators was, or will be, an inflator using either propellant 2004 or 2004L that does contain a desiccant. None of these "desiccated" remedy parts (which were installed in older model year vehicles) are currently under recall for a degradation concern. Certain subsets of desiccated PSAN inflators using propellant 2004 for use as original equipment, however, have been recalled for a degradation concern. All Takata inflators produced with propellant 2004L contain desiccant, and none of these desiccated inflators using propellant 2004L are under recall for a degradation concern. There have been no reported field ruptures in any non-recalled desiccated PSAN inflators.It is understood that desiccants fully saturate at some threshold, at which point any additional moisture will not be captured. This means the degradation process observed in non-desiccated inflators using propellant 2004 may also occur in non-recalled desiccated inflators using propellant 2004, assuming additional moisture enters the inflator and high temperature cycling occurs. Based on available information, desiccant saturation can occur within the first five years in the worst environments, and the time required for full saturation is affected by multiple factors. While no present safety risk has been identified, further work is needed to evaluate the future risk of non-recalled desiccated inflators using propellant 2004.Three entities -- Takata (now known as TK Global), the Independent Testing Coalition, and Exponent -- have been studying the long-term behavior of Takata desiccated PSAN inflators using propellant 2004L (as well as 2004) in the presence of moisture and temperature cycling. The research efforts, which include development of predictive modeling techniques and field sample analysis, are ongoing. To date, none of the researchers have identified field evidence showing that propellant 2004L is undergoing a degradation process that leads to aggressive deployment and potential rupture. However, the time in service of such inflators remains short compared to that of the inflators using propellant 2004. Further study is needed to assess the long-term safety of desiccated inflators using propellant 2004L.The Office of Defects Investigation is opening this investigation to examine whether a safety defect related to propellant degradation exists in non-recalled desiccated PSAN frontal inflators manufactured by Takata. This investigation will require extensive information on Takata production processes and surveys of inflators in the field. Lists of recall actions that may have used desiccated PSAN inflators as remedy parts, as well as the makes and models originally manufactured with them, is available with the downloadable version of this document (see nhtsa.gov/recalls?nhtsaId=EA21002 -- note this information is subject to change/revision as the investigation proceeds). This investigation does not supersede EA15-001, which remains open.
Air Bags:frontal:passenger Side:inflator Module
From 2000 through 2017, Takata produced millions of air bag inflators using two types of phase-stabilized ammonium nitrate ("PSAN") propellant -- propellant 2004 and propellant 2004L. After prolonged exposure to high temperature cycles and humidity, inflators using propellant 2004 can degrade, causing the propellant to burn too quickly when ignited. The rapid burning can cause the inflator to rupture during deployment, potentially causing serious or even fatal injury to vehicle occupants. See 2016 Blomquist Report at www.nhtsa.gov/sites/nhtsa.gov/files/documents/expert_report-hrblomquist.pdf.Consequently, all frontal inflators using propellant 2004 that do not contain a "desiccant" (a substance that traps and holds moisture) in US vehicles are under recall. These "non-desiccated" inflators either have been or are required to be replaced.In some cases, the remedy part for these recalled inflators was, or will be, an inflator using either propellant 2004 or 2004L that does contain a desiccant. None of these "desiccated" remedy parts (which were installed in older model year vehicles) are currently under recall for a degradation concern. Certain subsets of desiccated PSAN inflators using propellant 2004 for use as original equipment, however, have been recalled for a degradation concern. All Takata inflators produced with propellant 2004L contain desiccant, and none of these desiccated inflators using propellant 2004L are under recall for a degradation concern. There have been no reported field ruptures in any non-recalled desiccated PSAN inflators.It is understood that desiccants fully saturate at some threshold, at which point any additional moisture will not be captured. This means the degradation process observed in non-desiccated inflators using propellant 2004 may also occur in non-recalled desiccated inflators using propellant 2004, assuming additional moisture enters the inflator and high temperature cycling occurs. Based on available information, desiccant saturation can occur within the first five years in the worst environments, and the time required for full saturation is affected by multiple factors. While no present safety risk has been identified, further work is needed to evaluate the future risk of non-recalled desiccated inflators using propellant 2004.Three entities -- Takata (now known as TK Global), the Independent Testing Coalition, and Exponent -- have been studying the long-term behavior of Takata desiccated PSAN inflators using propellant 2004L (as well as 2004) in the presence of moisture and temperature cycling. The research efforts, which include development of predictive modeling techniques and field sample analysis, are ongoing. To date, none of the researchers have identified field evidence showing that propellant 2004L is undergoing a degradation process that leads to aggressive deployment and potential rupture. However, the time in service of such inflators remains short compared to that of the inflators using propellant 2004. Further study is needed to assess the long-term safety of desiccated inflators using propellant 2004L.The Office of Defects Investigation is opening this investigation to examine whether a safety defect related to propellant degradation exists in non-recalled desiccated PSAN frontal inflators manufactured by Takata. This investigation will require extensive information on Takata production processes and surveys of inflators in the field. Lists of recall actions that may have used desiccated PSAN inflators as remedy parts, as well as the makes and models originally manufactured with them, is available with the downloadable version of this document (see nhtsa.gov/recalls?nhtsaId=EA21002 -- note this information is subject to change/revision as the investigation proceeds). This investigation does not supersede EA15-001, which remains open.