2014 Chevrolet Silverado 2500

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.

The contact owns a 2014 Chevrolet Silverado 2500. The contact received notification of NHTSA Campaign Number: 21V054000 (Air Bags); however, the part to do the recall repair was unavailable. An unknown local dealer was contacted, and it was confirmed that the part was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure.

NHTSA ID

11700870

Incident

Nov 21, 2025

The contact owns a 2014 Chevrolet Silverado 2500. The contact stated that the driver's side front door panel inside plastic had deteriorated and disintegrated. The contact stated that the door was difficult to open. There were no warning lights illuminated. The local dealer was contacted, but the vehicle was not diagnosed or repaired. The manufacturer was contacted and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 85,000.

NHTSA ID

11596086

Incident

Jan 1, 2024

Mileage

85,000 mi

LT295/65R20 Two Nitto Grappler G2 which were on the rear of my truck, the internal belts of the tire have separated, causing a buckle of the tire. The separation caused a bouncing rough ride. This is a safety issue when riding the vehicle and I believe eventually it would have blown. The two tires were replaced by Discount Tire under my extended warranty that I purchased with the tires. I did contact Nitto Tire and attempted to have them replace the remaining front tires, I believe they will be separating very soon. Nitto refused to replace the tires, due to the tires being over 5 years old. The tires are not worn and have 11/32’s thread. I believe Nitto has a problem with the tires separating and should be addressed.

NHTSA ID

11579606

Incident

Mar 22, 2024

Cp4 failure, left me stranded and cost me 11k in repairs. 69k miles on truck 6,427.40$ for the Bosh disaster kit. Plus additional fluids, gaskets, ect that are not included. And 3900$ in labor. This cost me little under 11k. I have full invoice at total performance diesel at 300 west robles ave, Santa Rosa. This really affects my life. And it’s a common thing for the cp4 pump. 7,500$ deposit and 2,698.38$ was my final payment.

NHTSA ID

11547604

Incident

Aug 1, 2023

When pulling out into busy traffic the TCM quit and lost all power to the wheels. Could not move. Luckily the traffic seen we had a issue and swerved to go around us. We found out later this has been a huge issue for GM with TCM on units like mine. If traffic would not have been paying attention they would have hit us and caused injuries to my family and probably theirs. Glad we were not pulling out onto a highway with high speed traffic.

NHTSA ID

11545449

Incident

Apr 14, 2023

TCM failed. Vehicle is at the dealership awaiting new part for over three months now. Continue to get extended ETA on the part, latest communication was maybe November before it ships. Last vehicle dealership had took a year for the replacement TCM Vehicle immediately went into ‘limp mode’ on highway, was very unsafe because could only go 20-25mph. Confirmed by dealer upon them working on pickup it was the TCM. They, as well as we researched, and found stated that this is widespread problem in 2011-2016 year Duramaxes. We were left vehicleless. We tow trailers for our business and fifth wheel camper for personal use. Very detrimental to our livelihood.

NHTSA ID

11545297

Incident

Jun 23, 2023

Mileage

170,318 mi

The fuel pump has put metal shaving all through my fuel system and It is available for inspection if anyone is interested in taking a look at it. It made my truck die in the middle of the highway. It put me and a lot of others in danger! AutoNation Chevrolet seen and confirmed and said it was because the cp4 fuel pump isn’t compatible with my truck and that a class action was just granted over this in 5 states. The Chevrolet dealership inspected the component. Only light that came on was change fuel filter and I got it changed just a day or two before it died on me.

NHTSA ID

11540849

Incident

Aug 15, 2023

Transmission Control Module Failed on the highway while towing and left me and family in a dangerous situation.

NHTSA ID

11540440

Incident

Apr 15, 2023

This preliminary information communicates information about how to determine if a wheel and tires size change is available.

This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.

This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.

This Preliminary Information communication provides information to the technician that some owners of Heavy Duty Trucks and Utilities may ask if they can lower their tire pressures. Tire pressures being set to the "Tire and Loading Label" will ensure the safe handling and ride characteristics of the truck and should not be lowered.

This PI Communications information on an alternative product dealers can use to perform 19-NA-255: Wax Coating on Frame Peeling, Metal Shows Corrosion/Rusting due to issue with getting product from current supplier listed in the bulletin.

This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.