IllustrationOdometer Fraud. The contact purchased a 2011 Chevrolet Suburban. It was discovered that there was a mileage discrepancy. The vehicle was a private sale. At the time of purchase, the mileage was 133,000. The contact stated that at the time of registration, it was discovered that the mileage was 233,793.
2011 Chevrolet Suburban
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 2011 Chevrolet Suburban do not stand out strongly from the model-year median of 118.
About this comparison →How this year compares
Owner complaints by model year
Compare all Suburban 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
60–25K
1825–50K
2450–75K
2075–100K
11100–150K
9150K+
88 reports with mileage · 60 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 66 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Structure. Review the 26 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 10 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 reports4 injury reports
Electrical System complaints
10 reportsTL* THE CONTACT OWNS A 2011 CHEVROLET SUBURBAN. WHILE DRIVING APPROXIMATELY 65 MPH, THE RPMS REDUCED TO 0 AND THE INSTRUMENT PANEL INDICATORS ILLUMINATED. ADDITIONALLY, ALL THE DOORS UNLOCKED AND LOCKED AND THE RADIO BEGAN TO TURN ON AND OFF. THE CONTACT PULLED OVER TO THE SIDE OF THE ROAD AND TURNED OFF THE VEHICLE. THE CONTACT…
Read full complaint
TL* THE CONTACT OWNS A 2011 CHEVROLET SUBURBAN. WHILE DRIVING APPROXIMATELY 65 MPH, THE RPMS REDUCED TO 0 AND THE INSTRUMENT PANEL INDICATORS ILLUMINATED. ADDITIONALLY, ALL THE DOORS UNLOCKED AND LOCKED AND THE RADIO BEGAN TO TURN ON AND OFF. THE CONTACT PULLED OVER TO THE SIDE OF THE ROAD AND TURNED OFF THE VEHICLE. THE CONTACT HAD TO WAIT A COUPLE OF MINUTES BEFORE SHE WERE ABLE TO RESTART THE VEHICLE. THE FAILURE OCCURRED APPROXIMATELY FIVE TIMES. THE CONTACT CALLED RAINBOW CHEVROLET (LOCATED AT 2020 W AIRLINE HWY, LA PLACE, LA 70068, 985-718-4683), BUT THE CAUSE OF THE FAILURES COULD NOT BE DETERMINED. THE VEHICLE HAD NOT BEEN REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURES. THE CONTACT STATED THAT THE FAILURES WERE RELATED TO NHTSA CAMPAIGN NUMBER: 14V827000 (ELECTRICAL SYSTEM). THE APPROXIMATE FAILURE MILEAGE WAS 141,000. THE VIN WAS INVALID.*JB
VEHICLE SHUTS DOWN WHILE DRIVING AND WHILE PARKED. ALL ELECTRONICS SHUT DOWN, UNABLE TO ACTIVATE HAZARD LIGHTS. PREVIOUSLY PAYED TO FIX ABS LIGHT/SENSOR. DASH CRACKED DRIVER SIDE AND PASSENGER SIDE. HAS HAPPENED MULTIPLE TIMES PRIOR.
WHEN DRIVING THE VEHICLE THE ELECTRIC WILL FLICKER AND THEN THE SERVICE TRACTION CONTROL LIGHT WILL APPEAR ON THE DASH. THIS HAPPENS WHEN DRIVING, PARKING AND STARTING THE ENGINE. UNABLE TO TURN OFF THE LIGHT WITH THE BUTTON ON THE DASH BOARD.
MY VEHICLES ENGINE SHUTS OFF WHILE DRIVING. ALL ELECTRICAL IN THE CAR INCLUDING POWER DOOR LOCKS START TO OPEN AND CLOSE WHEN ENGINE SHUTS OFF AND POWERS BACK ON. EXTREMELY UNSAFE ESPECIALLY WHEN DRIVING WITH ALL MY CHILDREN IN THE CAR.
TL* THE CONTACT OWNS A 2011 CHEVROLET SUBURBAN. THE CONTACT NOTICED THAT THE DASHBOARD CRACKED APART. THE VEHICLE WAS NOT TAKEN TO THE DEALER. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT CONTACTED AND MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 35,000.
THE REAR LIFT GATE ON MY 2011 SUBURBAN HAS BEGUN TO SPONTANEOUSLY CLOSE ON ITS OWN. IT KNOCKED MY HUSBAND DOWN OVER THE WEEKEND AND CONKED ME ON THE HEAD YESTERDAY WHILE I WAS PARKED AND LOADING GROCERIES- GLAD I DIDN'T NEED STITCHES! THIS IS A VERY DANGEROUS SITUATION AND I HOPE CHEVROLET WILL WORK TO RECTIFY IT. A QUICK INTERN…
Read full complaint
THE REAR LIFT GATE ON MY 2011 SUBURBAN HAS BEGUN TO SPONTANEOUSLY CLOSE ON ITS OWN. IT KNOCKED MY HUSBAND DOWN OVER THE WEEKEND AND CONKED ME ON THE HEAD YESTERDAY WHILE I WAS PARKED AND LOADING GROCERIES- GLAD I DIDN'T NEED STITCHES! THIS IS A VERY DANGEROUS SITUATION AND I HOPE CHEVROLET WILL WORK TO RECTIFY IT. A QUICK INTERNET SEARCH WILL TELL YOU THAT MANY, MANY PEOPLE ARE HAVING THE SAME PROBLEM WITH SUBURBANS AND OTHER CHEVY MODELS.
MY BREAK LIGHTS WONT WORK , DEALER STATES ITS COMPUTER . I HAD THE TRUCK 3 YEARS. I HAD NO IDEA I HAD NO BREAK LIGHTS TILL I TOOK THE TRUCK FOR INSPECTION
TL* THE CONTACT OWNS A 2011 CHEVROLET SUBURBAN. THE CONTACT STATED THAT NONE OF THE INSTRUMENT PANEL INDICATORS WERE WORKING AND THE ABS WARNING INDICATOR ILLUMINATED. THE VEHICLE WAS NOT TAKEN TO A DEALER OR AN INDEPENDENT MECHANIC FOR DIAGNOSTIC TESTING. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE VEHICLE WAS NOT REPAIRE…
Read full complaint
TL* THE CONTACT OWNS A 2011 CHEVROLET SUBURBAN. THE CONTACT STATED THAT NONE OF THE INSTRUMENT PANEL INDICATORS WERE WORKING AND THE ABS WARNING INDICATOR ILLUMINATED. THE VEHICLE WAS NOT TAKEN TO A DEALER OR AN INDEPENDENT MECHANIC FOR DIAGNOSTIC TESTING. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 86,289.
1.)WHEN WE WERE DRIVING THRU THE MOUNTAINS OUR ELECTRICAL SYSTEM STARTED TO GO HAYWIRE AND THE LIGHTS STARTED GOING IN AND OUT AND THE IGNITION STARTED TO ACT UP CAR TURNED OFF A FEW TIMES WE HAD TO RESTART IT WHEN WE BROUGHT IT TO THE DEALERSHIP TO GET CHECKED OUT THEY SAID THERE WAS COINS IN THE RADIO. 2.) THE DEFROSTERS F…
Read full complaint
1.)WHEN WE WERE DRIVING THRU THE MOUNTAINS OUR ELECTRICAL SYSTEM STARTED TO GO HAYWIRE AND THE LIGHTS STARTED GOING IN AND OUT AND THE IGNITION STARTED TO ACT UP CAR TURNED OFF A FEW TIMES WE HAD TO RESTART IT WHEN WE BROUGHT IT TO THE DEALERSHIP TO GET CHECKED OUT THEY SAID THERE WAS COINS IN THE RADIO. 2.) THE DEFROSTERS FOR THE FRONT WINDSHIELD DOESN'T DEFROST THE WINDOW AT ALL WHEN DRIVING IN COLD DAYS THE WHOLE WINDOW FOGS UP AND FREEZES MAKING VISIBILITY TO NONE AND WE HAVE TO STOP WIPE DOWN THE WIND SHIELD AND DRIVE AGAIN FOR TEN MINUTES THEN THIS PROBLEM GOES ON AND ON THE HEATER GOES ON FULL BLAST BUT NO RESULTS THAT IS A VERY UNSAFE AND UN DRIVABLE AT TIMES. COINS IN THE RADIO? I WAS ASTONISHED AND VERY UPSET HOW COULD AN INDUSTRY MAKE A VEHICLE THAT IF WATER IS SPILLED ON/OR IN THE RADIO OR COINS DROPPED IN THE CD COMPARTMENT THAT THE WHOLE ELECTRICAL SYSTEM GOES OUT AND STARTS GOING HAYWIRE ESPECIALLY HERE IN ALASKA A LOT SNOW AND HARSH WINTER DRIVING CONDITIONS ARE NOT GREAT AND IF THE VEHICLE STALLS DO TO THE RADIO AND DEFROSTERS NOT WORKING OR SOMEONE SPILLED SOMETHING ON THE RADIO THEN THE PEOPLE AND CHILDREN WOULD FREEZE TO DEATH THEN WHO WOULD BE AT FAULT THAT MEANS THE COMPANY THAT MAKES THE VEHICLE IS GONNA BE LIABLE FOR THE CONSEQUENCES THE DEFROSTERS NOT WORKING DOESN'T HELP ANY WE HAVE TO DRIVE THRU THIS WEATHER OUT HERE 9MONTHS OUT OF THE YEAR AND HAVE TO SUFFER BECAUSE OF THESE SITUATIONS THAT IS INEXCUSABLE AND VERY DANGEROUS TO PUBLIC THIS NEEDS TO BE FIXED AND RESOLVED. WE TOOK IT TO THE DEALERSHIP A FEW TIMES BUT THE PROBLEM STILL CONSISTS DOING THE HORRIBLE DANGEROUS THINGS THAT THE SUBURBAN DOES WE HAVE ANOTHER APPOINTMENT TO TAKE THE VEHICLE IN AGAIN BECAUSE THE RADIO IS ACTING UP AGAIN AND DEFROSTERS ARE ACTING UP THIS IS A DEFECT AND NEEDS TO BE FIXED. *TR
Official recalls
321V050000 · 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.
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.