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2013 Chevrolet Tahoe

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2013 Chevrolet Tahoe do not stand out strongly from the model-year median of 246.

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How this year compares

Owner complaints by model year

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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

162 reports with mileage · 70 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.

  • Structure. Review the 56 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Air Bags. Review the 51 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 16 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

4 crash reports0 fire reports2 injury reports

Vehicle Speed Control complaints

7 reports
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Mileage unknown · Jun 25, 2025
EngineUnknown Or OtherVehicle Speed Control

One day I was driving normal and my engine light and two other lights came on. It dropped my speed under 30mph and I couldn't pass the gas. It said reduced engine power, service stabilitrak and service traction. I immediately took it to auto zone then placed it in the shop at the dealership. They had my truck for almost 2 months…

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One day I was driving normal and my engine light and two other lights came on. It dropped my speed under 30mph and I couldn't pass the gas. It said reduced engine power, service stabilitrak and service traction. I immediately took it to auto zone then placed it in the shop at the dealership. They had my truck for almost 2 months and finally said they fixed it. It ran ok for a month or so. I was so scared to drive because it does it randomly. Boom it happen again now im frustrated because what is the problem. Called shop they said bring it back they will have a new person look at it. They had it for a month again. Paid more money. Then boom a month later the same thing. So at this point im calling no one is answering they ignored me so I called the customer service on the truck to complain. I had to get rentals and everything with the same problem it is over a year later. No answer and nobody called back nothing. I parked my truck for months and yesterday June 24th the lights came on again. I have heard alot of my friends and family say they have a chevy vehicle and they did/do the same thing.

NHTSA ODI #11669335

Mileage unknown · May 6, 2024
Power TrainUnknown Or OtherVehicle Speed Control

Transmission, vehicle stops functioning without notice on the road while driving acceleration stops. The problem was confirmed to be a transmission failure by chevrolet. The inspection was done by chevrolet to confirm the transmission has failed. The vehicle started to jump when sitting still and the drive train for 2wheel/4whel…

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Transmission, vehicle stops functioning without notice on the road while driving acceleration stops. The problem was confirmed to be a transmission failure by chevrolet. The inspection was done by chevrolet to confirm the transmission has failed. The vehicle started to jump when sitting still and the drive train for 2wheel/4whell did stop working it only allowed the vehicle to be moved in 2whell drive. This happened after the vehicle went over 100k miles and when I took it to chevrolet they said nothing was wrong with it, they said "it's an old car". When the car is driven over 35/40mph the vehicle now shakes along with it stopping to function while driving. Even with chevrolet verifying that the transmission is bad(which is the recall on Tahoe models from the same year of production) they refuse to acknowledge it is all models unless it's on a specific list of vin numbers. They refuse to replace the transmission recall at no cost according to the current recall that was done already for this year make and model. I've had all engine tune up maintenance requirements done and have not missed any vehicle scheduled maintenance this vehicle year make and model is on the recall list and I've attached the copy of it to show proof of the record. The record was provided by chevrolet, along with the record of NHTSA recalls to show this is the same year make and model but the vin isn't included, as well as the recalls they listed to show that zero apply to this vehicle when this is clearly the same exact symptoms listed on the recall but this vin isn't listed when it should be if the same exact symptoms are failing on the vehicle with maintenance kept up.

NHTSA ODI #11587178

104,000 miles · Jun 9, 2017
Electronic Stability Control (esc)EngineVehicle Speed Control

WHILE DRIVING VEHICLE CONTINUES TO DROP INTO REDUCED POWER MODE CAUSING A JARRING MOTION AS IT DROPS A SIGNIFICANT AMOUNT OF SPEED,ALMOST CAUSING MULTIPLE ACCIDENTS. THE CHECK ENGINE LIGHT COMES ON, TRACTION CONTROL TURNS OFF, STABILLITRACK TURNS OFF, AND ENGINE GOES INTO LIMP MODE AND STARTS SHAKING AND JARRING. THE SAME 2 CODE…

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WHILE DRIVING VEHICLE CONTINUES TO DROP INTO REDUCED POWER MODE CAUSING A JARRING MOTION AS IT DROPS A SIGNIFICANT AMOUNT OF SPEED,ALMOST CAUSING MULTIPLE ACCIDENTS. THE CHECK ENGINE LIGHT COMES ON, TRACTION CONTROL TURNS OFF, STABILLITRACK TURNS OFF, AND ENGINE GOES INTO LIMP MODE AND STARTS SHAKING AND JARRING. THE SAME 2 CODES CONTINUE TO COME UP IN DIAGNOSIS. P2135 AND P2176. I HAVE TAKEN THE VEHICLE TO THREE MECHANICS 1 OF THEM BEING CHEVY ITS SELF. WITH NO SOLUTION FOUND. I HAVE HAD THE ACCELERATION PEDAL REPLACED, THE WIRING REPLACED, THE IGNITION SWITCH AND RELAY REPLACED HAD THE THROTTLE BODY CONNECTOR REPLACED, THE THROTTLE BODY AND GASKET REPLACED 3 TIMES. I HAVE DONE EVERYTHING RECOMMENDED BY ALL SHOPS INCLUDING CHEVY. PLEASE HELP AS THE TRUCK HAS BEEN IN THE SHOP MORE THEN IT HAS BEEN ON THE ROAD AND I HAVE ALMOST BEEN IN MULTIPLE ACCIDENTS AS THE TRUCK IS DIFFICULT TO CONTROL WHEN THE ISSUE HAPPENS.

NHTSA ODI #10994120

89,867 miles · Aug 2, 2016
Electrical SystemElectronic Stability Control (esc)Vehicle Speed Control

WHILE DRIVING AROUND 60 MPH THE CAR DOES A MASSIVE SHAKE. CHECK ENGINE LIGHT COMES ON, STABILIZATION TURNS OFF, TRACTION CONTROLS TURNS OFF AND ENGINE POWER IS REDUCED FIRST TO 10MPH AND COULD NOT GET MORE THAN 30MPH. I WAS ALMOST HIT BY AN 18 WHEELER DUE TO MY SUDDEN STOP. THE SUV IS NOW IN ENGINE POWER REDUCED MODE.

NHTSA ODI #10892684

40,000 miles · May 5, 2016
Electrical SystemEngineVehicle Speed Control

TL* THE CONTACT OWNS A 2013 CHEVROLET TAHOE. WHILE DRIVING 40 MPH, THE VEHICLE HESITATED AND LOST POWER AS IF IT WOULD STALL WITHOUT WARNING. THE AIR BAG LIGHT ILLUMINATED AND THE VEHICLE DID NOT RESPOND WHEN THE ACCELERATOR PEDAL WAS DEPRESSED. THE CONTACT ALSO STATED THAT THE RADIO POWERED ON AND OFF. THE DOORS LOCKED AND UNLO…

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TL* THE CONTACT OWNS A 2013 CHEVROLET TAHOE. WHILE DRIVING 40 MPH, THE VEHICLE HESITATED AND LOST POWER AS IF IT WOULD STALL WITHOUT WARNING. THE AIR BAG LIGHT ILLUMINATED AND THE VEHICLE DID NOT RESPOND WHEN THE ACCELERATOR PEDAL WAS DEPRESSED. THE CONTACT ALSO STATED THAT THE RADIO POWERED ON AND OFF. THE DOORS LOCKED AND UNLOCKED ON THEIR OWN. THE CONTACT PULLED THE VEHICLE OVER, WAITED A FEW MINUTES, AND PROCEEDED TO DRIVE. THE FAILURE RECURRED. THE VEHICLE WAS NOT TAKEN TO A DEALER. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 40,000.

NHTSA ODI #10863495

Mileage unknown · Oct 14, 2014
EngineVehicle Speed Control

2013 CHEVROLET TAHOE. REPRESENTATIVE FROM THE CITY WRITES IN REGARDS TO PROBLEMS WITH POLICE FLEET. *TGW THE CONSUMER STATED AFTER THE NEW ENGINE CALIBRATIONS WERE INSTALLED ON SEVEN VEHICLES, LESS THAN 24 HOURS LATER, THE PROBLEM CONTINUED, ALONG WITH ADDITIONAL ISSUES AND PROBLEMS THAT WERE NEVER EXPERIENCED BEFORE. SPECIFICA…

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2013 CHEVROLET TAHOE. REPRESENTATIVE FROM THE CITY WRITES IN REGARDS TO PROBLEMS WITH POLICE FLEET. *TGW THE CONSUMER STATED AFTER THE NEW ENGINE CALIBRATIONS WERE INSTALLED ON SEVEN VEHICLES, LESS THAN 24 HOURS LATER, THE PROBLEM CONTINUED, ALONG WITH ADDITIONAL ISSUES AND PROBLEMS THAT WERE NEVER EXPERIENCED BEFORE. SPECIFICALLY, THE VEHICLES LUNGED FORWARD AGGRESSIVELY AFTER COMING TO A STOP. GM EVENTUALLY REMOVED THE CALIBRATIONS. THE ISSUE WITH THE VEHICLES STALLING, LACK OF POWER, IDLE SURGING AND HESITATION UPON ACCELERATION, CONTINUED. *JB

NHTSA ODI #10641010

7,133 miles · Apr 17, 2014
Vehicle Speed Control

WHILE DRIVING THE SPEEDOMETER IS SHOWING 0 ON BOTH THE DIGITAL DISPLAY AND ANALOG NEEDLE DISPLAY. ALSO IT IS SHOWING THAT THE VEHICLE IS IN PARK. ONLY BY PULLING OVER AND STARTING THE CAR UP AGAIN (~5 MINUTES), THE PROBLEM GOES AWAY.

NHTSA ODI #10583284

Official recalls

4

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.

14V614000 · Electrical System

Oct 1, 2014

General Motors LLC (GM) is recalling certain model year 2013-2014 Cadillac CTS, Escalade, Escalade ESV, Chevrolet Suburban, Tahoe, GMC Yukon, and Yukon XL, and 2014 Buick Enclave, Chevrolet Express, Impala, Silverado HD, Traverse, GMC Acadia, Savana, and Sierra HD vehicles. In the affected vehicles, the chassis electronic module may be internally contaminated, resulting in an electrical short.

Consequence & remedy

Consequence: If the module experiences an electrical short, the vehicle could stall, increasing the risk of a crash.

Remedy: GM will notify owners, and dealers will replace the chassis electronic module, free of charge. The recall began on December 26, 2014. Owners may contact GM customer service at 1-800-521-7300 (Buick), 1-800-458-006 (Cadillac), 1-800-222-1020 (Chevrolet), and 1-800-462-8782 (GMC). GM’s number for this recall is 14515.

13V001000 · Power Train:automatic Transmission; Steering:column LOCKING:ANTI-THEFT Device

Jan 2, 2013

General Motors (GM) is recalling certain model year 2013 Cadillac Escalade, Escalade ESV, and Escalade EXT; Chevrolet Avalanche, Express, Silverado HD, Silverado LD, Suburban, and Tahoe; and GMC Savana, Sierra HD, Sierra LD, Yukon, and Yukon XL vehicles, manufactured between November 7, 2012, through December 18, 2012, for failing to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) No. 102, "Transmission Shift Lever Sequence, Starter Interlock, and Transmission Braking Effect", and FMVSS No. 114, "Theft Protection and Rollaway Prevention." The vehicles may have been built with a fractured park lock cable or a malformed steering column lock actuator gear in the lock module assembly.

Consequence & remedy

Consequence: As a result, the vehicle may shift from Park with the ignition key removed or the ignition key in the OFF position. The vehicle may also shift out of Park without application of the brake pedal while the key is off. Either of these scenarios may cause the vehicle to roll away after the driver has exited the vehicle, resulting in a possible vehicle crash and/or injury.

Remedy: GM will notify owners, and dealers will inspect the affected vehicles and replace the steering column as necessary, free of charge. The recall began on January 21, 2013. Chevrolet owners may call 1-800-630-2438. Cadillac owners may call 1-866-982-2339. GMC owners may call 1-866-996-9463.

Additional source detail variants (2)

Power Train:automatic Transmission

General Motors (GM) is recalling certain model year 2013 Cadillac Escalade, Escalade ESV, and Escalade EXT; Chevrolet Avalanche, Express, Silverado HD, Silverado LD, Suburban, and Tahoe; and GMC Savana, Sierra HD, Sierra LD, Yukon, and Yukon XL vehicles, manufactured between November 7, 2012, through December 18, 2012, for failing to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) No. 102, "Transmission Shift Lever Sequence, Starter Interlock, and Transmission Braking Effect", and FMVSS No. 114, "Theft Protection and Rollaway Prevention." The vehicles may have been built with a fractured park lock cable or a malformed steering column lock actuator gear in the lock module assembly.

Consequence: As a result, the vehicle may shift from Park with the ignition key removed or the ignition key in the OFF position. The vehicle may also shift out of Park without application of the brake pedal while the key is off. Either of these scenarios may cause the vehicle to roll away after the driver has exited the vehicle, resulting in a possible vehicle crash and/or injury.

Remedy: GM will notify owners, and dealers will inspect the affected vehicles and replace the steering column as necessary, free of charge. The recall began on January 21, 2013. Chevrolet owners may call 1-800-630-2438. Cadillac owners may call 1-866-982-2339. GMC owners may call 1-866-996-9463.

Steering:column LOCKING:ANTI-THEFT Device

General Motors (GM) is recalling certain model year 2013 Cadillac Escalade, Escalade ESV, and Escalade EXT; Chevrolet Avalanche, Express, Silverado HD, Silverado LD, Suburban, and Tahoe; and GMC Savana, Sierra HD, Sierra LD, Yukon, and Yukon XL vehicles, manufactured between November 7, 2012, through December 18, 2012, for failing to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) No. 102, "Transmission Shift Lever Sequence, Starter Interlock, and Transmission Braking Effect", and FMVSS No. 114, "Theft Protection and Rollaway Prevention." The vehicles may have been built with a fractured park lock cable or a malformed steering column lock actuator gear in the lock module assembly.

Consequence: As a result, the vehicle may shift from Park with the ignition key removed or the ignition key in the OFF position. The vehicle may also shift out of Park without application of the brake pedal while the key is off. Either of these scenarios may cause the vehicle to roll away after the driver has exited the vehicle, resulting in a possible vehicle crash and/or injury.

Remedy: GM will notify owners, and dealers will inspect the affected vehicles and replace the steering column as necessary, free of charge. The recall began on January 21, 2013. Chevrolet owners may call 1-800-630-2438. Cadillac owners may call 1-866-982-2339. GMC owners may call 1-866-996-9463.

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.