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2013 Chevrolet Silverado 1500

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2013 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

170 reports with mileage · 131 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 83 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Structure. Review the 75 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine. Review the 33 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

8 crash reports0 fire reports4 injury reports

What owners actually said

301 reports
32,000 miles · Aug 23, 2016
Unknown Or Other

THE DASH DEVELOPED A CRACK AT THE LEFT CORNER OF THE PASSENGER AIRBAG, WHICH WAS IDENTICAL TO THE ONE THAT OCCURRED IN OUR 2012 CHEVROLET SUBURBAN. THE VEHICLE IS IN EXCELLENT CONDITION, AND EXTREMELY WELL MAINTAINED. MILES ARE AT 32,000, BUT THE FACTORY WARRANTY RAN OUT AT THE END OF MAY AND CHEVY REFUSES TO COVER THE REPAIR AT…

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THE DASH DEVELOPED A CRACK AT THE LEFT CORNER OF THE PASSENGER AIRBAG, WHICH WAS IDENTICAL TO THE ONE THAT OCCURRED IN OUR 2012 CHEVROLET SUBURBAN. THE VEHICLE IS IN EXCELLENT CONDITION, AND EXTREMELY WELL MAINTAINED. MILES ARE AT 32,000, BUT THE FACTORY WARRANTY RAN OUT AT THE END OF MAY AND CHEVY REFUSES TO COVER THE REPAIR AT 100%.

NHTSA ODI #10898085

Mileage unknown · Aug 19, 2016
Unknown Or Other

CRACKS IN DASHBOARD , EXPOSE AIRBAG , RECALL NEEDED , PLEASE HELP US AND MAKE A COMPLIANT.

NHTSA ODI #10897178

28,000 miles · Aug 2, 2016
Unknown Or Other

HAS 28K MILES ON IT AND THE PAINT HAS RUNS AND CLEAR COAT PEELED. DASH IS ALSO CRACKED GIVING SERIOUS CONCERNS TO AIR BAG DEPLOYMENT CAUSING FLYING DEPRIS. DEALER BASICALLY SAID YOUR SOL

NHTSA ODI #10892669

48,000 miles · Jul 22, 2016
StructureWheelsCrash

ON 7/14 AM I HAD THE CHEVROLET DEALER PUT 2 NEW TIRES AND HAD AN ALIGNMENT DONE. WE LEFT ON TRIP LATER THAT DAY AND IN A HEAVY RAIN STORN NEAR JACKSONVILLE, AR, WITHOUT ANY WARNING THE TRUCK SPUN OUT OF CONTROL ON HWY 167S DUE TO SEVERE HYDROPLANING. THE NEXT DAY I LOOKED AT THE TIRES AND THEY WERE NOT THE SAME TIRES AS ON THE R…

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ON 7/14 AM I HAD THE CHEVROLET DEALER PUT 2 NEW TIRES AND HAD AN ALIGNMENT DONE. WE LEFT ON TRIP LATER THAT DAY AND IN A HEAVY RAIN STORN NEAR JACKSONVILLE, AR, WITHOUT ANY WARNING THE TRUCK SPUN OUT OF CONTROL ON HWY 167S DUE TO SEVERE HYDROPLANING. THE NEXT DAY I LOOKED AT THE TIRES AND THEY WERE NOT THE SAME TIRES AS ON THE REAR OR AS SPECIFIED BY GM. THEY SHOULD HAVE BEEN P245 AND THEY WERE MS245. I RECALL WHEN I FIRST LOOKED AT THE TRUCK WHEN WE PICKED UP AT THE CHEVROLET GARAGE THAT THEY DID NOT LOOK "NEW". THEY WERE DUSTY AND DIRTY AND DID NOT HAVE THE "NEW TIRE STIPLING" THAT I HAVE SEEN ON OTHER NEW TIRES THAT I HAVE PURCHASED. I LATER FOUND OUT BY GOODYEAR THAT THE TIRES SHOULD HAVE BEEN PUT ON THE REAR OF THE VEHICLE. I HAVE DONE A LOT OF DRIVING IN SNOW AND RAIN AND WHEN I NOTICE HYDROPLANING, I SLOW DOWN. BUT IN THIS ACCIDENT THERE WAS NO WARNING. WHEN I FIRST CALLED THE CHECROLET DEALER THEY SAID THAT 245 EURO TIRES WERE PUT ON MY TRUCK AND THEY WERE BETTER THAN THE P245 TIRES AND TO CONTACT THERE LAWYER. I THINK THE TIRES THEY PUT ON THAT THEY SOLD AS NEW, WERE TAKEN OFF OF ANOTHER VEHICLE AND PUT ON MY TRUCK . I ASKED THEM IF THEY WOULD SHOW ME THE ORDER, BILL OF LADING, AND PACKING SLIP ANE AGAIN THEY REFERRED ME TO THEIR LAWYER.

NHTSA ODI #10887892

100,000 miles · Jul 19, 2016
Visibility/wiper

TL* THE CONTACT OWNS A 2013 CHEVROLET SILVERADO 1500. WHILE DRIVING AT A HIGHWAY RATE OF SPEED, THE WINDOW WIPER MOTOR FAILED AND CAUSED THE WIPERS NOT TO WORK. THE CONTACT HAD TO QUICKLY ADJUST THE WIPERS IN INCLEMENT WEATHER. THE VEHICLE WAS TO BE TAKEN TO A MECHANIC FOR DIAGNOSTIC TESTING AND REPAIR. THE MANUFACTURER WAS NOTI…

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TL* THE CONTACT OWNS A 2013 CHEVROLET SILVERADO 1500. WHILE DRIVING AT A HIGHWAY RATE OF SPEED, THE WINDOW WIPER MOTOR FAILED AND CAUSED THE WIPERS NOT TO WORK. THE CONTACT HAD TO QUICKLY ADJUST THE WIPERS IN INCLEMENT WEATHER. THE VEHICLE WAS TO BE TAKEN TO A MECHANIC FOR DIAGNOSTIC TESTING AND REPAIR. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND PROVIDED NO REMEDY. THE VIN WAS NOT AVAILABLE. THE APPROXIMATE FAILURE MILEAGE WAS 100,000.

NHTSA ODI #10885790

500 miles · Jul 12, 2016
Structure

TL* THE CONTACT OWNS A 2013 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT THE ENGINE MOUNTS AND FRAME WERE SEVERELY RUSTED. THE BOLTS AND NUTS IN THE FRAME WERE ALSO CORRODED AND COULD NOT BE REMOVED. ADDITIONALLY, ALL OF THE UNDERCOATING FRACTURED FROM THE VEHICLE. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE ABNORMAL AND…

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TL* THE CONTACT OWNS A 2013 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT THE ENGINE MOUNTS AND FRAME WERE SEVERELY RUSTED. THE BOLTS AND NUTS IN THE FRAME WERE ALSO CORRODED AND COULD NOT BE REMOVED. ADDITIONALLY, ALL OF THE UNDERCOATING FRACTURED FROM THE VEHICLE. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE ABNORMAL AND EXTENSIVE AMOUNT OF CORROSION TO THE FRAME AND UNDERCARRIAGE AREAS WERE CONFIRMED. THE DEALER INFORMED THE CONTACT THAT THEY WOULD REMOVE ALL OF THE RUST AND CORROSION AND APPLY A NEW UNDERCOATING. THE FAILURE MILEAGE WAS 500.

NHTSA ODI #10884358

34,352 miles · Jul 7, 2016
Unknown Or Other

DASHBOARD STARTING TO CRACK ON PASSENGER SIDE. 3 YEARS 7 DAYS...

NHTSA ODI #10883297

20,247 miles · Mar 7, 2016
Wheels

CHROME COVER OF 20" WHEEL CAME OFF AND ENTIRE WHEEL WAS REPLACED ON 1/28/2016. IT CAME OFF AGAIN ON FEB . 16., 2016 WHILE DRIVING.

NHTSA ODI #10840403

39,000 miles · Feb 13, 2016
Unknown Or Other

2013 CHEVROLET SILVERADO REAR SLIDING ELECTRIC WINDOW STUCK OPEN. THE MOTOR CAN BE HEARD WORKING, BUT THE WINDOW DOES NOT MOVE. RECALL FOR THE SAME PROBLEM IN YEARS 2014, 2015, 2016, BUT NOT 2013?

NHTSA ODI #10826017

13,000 miles · Jan 23, 2016
Air BagsCrash

ON 1/22/2016, I WAS INVOLVED IN A FRONT END COLLISION WHILE MAKING A LEFT TURN ONTO A MAJOR STREET. THE VEHICLE I COLLIDED WITH APPROXIMATE SPEED WAS 35MPH WHEN THE COLLISION OCCURRED!!! THE SMELL OF GUN POWDER WAS THROUGH OUT MY VEHICLE. ALSO THE SERVICE AIR BAG WARNING LIGHT WAS FLASHING ON MY DASH BOARD. NONE OF THE FACTORY A…

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ON 1/22/2016, I WAS INVOLVED IN A FRONT END COLLISION WHILE MAKING A LEFT TURN ONTO A MAJOR STREET. THE VEHICLE I COLLIDED WITH APPROXIMATE SPEED WAS 35MPH WHEN THE COLLISION OCCURRED!!! THE SMELL OF GUN POWDER WAS THROUGH OUT MY VEHICLE. ALSO THE SERVICE AIR BAG WARNING LIGHT WAS FLASHING ON MY DASH BOARD. NONE OF THE FACTORY AIR BAGS DEPLOYED DURING THE FRONT END COLLISION!!!

NHTSA ODI #10821876

Official recalls

2

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.

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.

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.