FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP:CONTROL/DRIVE MODULE
General Motors, LLC (GM) is recalling certain 2025-2026 Chevrolet Silverado 3500, and GMC Sierra 3500 vehicles with gasoline engines and dual fuel tanks (RPOs L8T and N2N). The rear fuel pump may not transfer adequate fuel to the front tank, causing an engine stall.
Remedy: The vehicle's engine control module (ECM) will be updated by a dealer or through an over-the-air (OTA) update, free of charge. Owner notification letters are expected to be mailed April 20, 2026. Owners may contact GMC customer service at 1-800-462-8782 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N262544420. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on March 5, 2026.
11,807 vehicles affected
The vehicle was driven to a job site in Gowanda NY. The computer indicated it neede to clean the exhaust filter. The truck was parked in an open area on a blacktop parking area. The truck finished a Regen approximately 30 minutes later. The vehicle was shut down and left unattended. Approx 30 minutes later, the driver, heard noises, came around a structure and saw the vehicle was on fire. The driver did attempt to use a fire extinguisher to no avail. They then called 911 and the fire department was dispatched. The department put out the fire but the vehicle is a total loss. As this was a work site, the vehicle was towed to our shop and stored inside. The inland marine insurance company hired a fire investigator, and they looked at the vehicle. They determined the fire originated on the lower firewall in the engine compartment. He paused his investigation, to await a representative of GM to be present for destructive analysis to determine exact cause. The GM case number is XXX. This vehicle had errored multiple times and did Regen every 2-300 miles. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Fire
The vehicle was driven to a job site in Gowanda NY. The computer indicated it neede to clean the exhaust filter. The truck was parked in an open area on a blacktop parking area. The truck finished a Regen approximately 30 minutes later. The vehicle was shut down and left unattended. Approx 30 minutes later, the driver, heard noises, came around a structure and saw the vehicle was on fire. The driver did attempt to use a fire extinguisher to no avail. They then called 911 and the fire department was dispatched. The department put out the fire but the vehicle is a total loss. As this was a work site, the vehicle was towed to our shop and stored inside. The inland marine insurance company hired a fire investigator, and they looked at the vehicle. They determined the fire originated on the lower firewall in the engine compartment. He paused his investigation, to await a representative of GM to be present for destructive analysis to determine exact cause. The GM case number is XXX. This vehicle had errored multiple times and did Regen every 2-300 miles. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Fire
The vehicle was driven to a job site in Gowanda NY. The computer indicated it neede to clean the exhaust filter. The truck was parked in an open area on a blacktop parking area. The truck finished a Regen approximately 30 minutes later. The vehicle was shut down and left unattended. Approx 30 minutes later, the driver, heard noises, came around a structure and saw the vehicle was on fire. The driver did attempt to use a fire extinguisher to no avail. They then called 911 and the fire department was dispatched. The department put out the fire but the vehicle is a total loss. As this was a work site, the vehicle was towed to our shop and stored inside. The inland marine insurance company hired a fire investigator, and they looked at the vehicle. They determined the fire originated on the lower firewall in the engine compartment. He paused his investigation, to await a representative of GM to be present for destructive analysis to determine exact cause. The GM case number is XXX. This vehicle had errored multiple times and did Regen every 2-300 miles. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Fire
>Exhaust fumes are returned back in to the cab of the truck. >Exhaust fumes, particularly from diesel engines, are highly dangerous, containing carbon monoxide, nitrogen oxides, and fine particles that can cause severe respiratory illnesses, cardiovascular disease, and cancer. Short-term exposure leads to dizziness, headaches, and nausea, while long-term exposure can be fatal or cause lasting lung damage. >Truck was taken to dealer and verified by service to be an issue. I have attached the paperwork from that appointment. >The truck was fixed by the dealer and retuned with no initial exhaust smell. The exhaust fumes have began to enter the cab of the truck again. We have contacted a new dealership service department to have the truck inspected they have given us an appointment in a week from today.
The contact owns a 2025 Chevrolet Silverado 3500. The contact stated that while driving at various speeds and towing a trailer or an RV, the brake pedal was depressed, and the trailer brake failed to engage. The contact stated there was no warning light illuminated. The contact stated that the failure was intermittent. The contact stated that the manual trailer brake was able to activate, and the trailer brake engaged to slow the trailer or the RV. The contact had taken the vehicle to a local dealer, where it was diagnosed and determined that the tow hitch wiring harness needed to be replaced. The contact stated that the tow hitch was factory installed. The vehicle was repaired; however, the failure reoccurred. The manufacturer was not informed of the failure. The failure mileage was approximately 1,500.
The contact owns a 2025 Chevrolet Silverado 3500. The contact stated that while driving at various speeds and towing a trailer or an RV, the brake pedal was depressed, and the trailer brake failed to engage. The contact stated there was no warning light illuminated. The contact stated that the failure was intermittent. The contact stated that the manual trailer brake was able to activate, and the trailer brake engaged to slow the trailer or the RV. The contact had taken the vehicle to a local dealer, where it was diagnosed and determined that the tow hitch wiring harness needed to be replaced. The contact stated that the tow hitch was factory installed. The vehicle was repaired; however, the failure reoccurred. The manufacturer was not informed of the failure. The failure mileage was approximately 1,500.
We were towing our 2025 Brinkley Z3100 Fifth Wheel and had a complete loss of trailer brakes with no warning or notification during a trip to and from the tennessee mountains from Florida. Had we not noticed the poor stopping ability it would have been an issue on any downhill grades as the trailer is in excess of 14,000 lbs. We stopped disconnected and reconnected the 7 pin connector and brakes were restored. This happened 4 times. We have made an appointment with the service department at Davis Chevrolet in Gainesville Florida however the service writer (Paul) has already indicated that he feels it is a trailer problem with the interaction of the trailer. Internet searches show this is a common problem with the GM Products and a Service Bullitin has been issued for years 2023-2024. Ours is a 2025 with the identical issues. I think there could be many many more of these out there and hope the issue can be resolved. I can reproduce the problem and it meets the full description of the Service bullitin 6379278.
We were towing our 2025 Brinkley Z3100 Fifth Wheel and had a complete loss of trailer brakes with no warning or notification during a trip to and from the tennessee mountains from Florida. Had we not noticed the poor stopping ability it would have been an issue on any downhill grades as the trailer is in excess of 14,000 lbs. We stopped disconnected and reconnected the 7 pin connector and brakes were restored. This happened 4 times. We have made an appointment with the service department at Davis Chevrolet in Gainesville Florida however the service writer (Paul) has already indicated that he feels it is a trailer problem with the interaction of the trailer. Internet searches show this is a common problem with the GM Products and a Service Bullitin has been issued for years 2023-2024. Ours is a 2025 with the identical issues. I think there could be many many more of these out there and hope the issue can be resolved. I can reproduce the problem and it meets the full description of the Service bullitin 6379278.
VALVE BODY FAILURE. TRUCK IS 6 MONTHS OLD. JUST HIT 37000 MILES. ENGINE BRAKE DISENGAGED, CHECK ENGINE LIGHT, TRAILERING OPTION DISABLED, AND WOULD NOT SHIFT OUT OF 1ST GEAR. TOWED TO DEALERSHIP TO BE TOLD VALVE BODY FAILED. REPLACEMENT PART HAS BEEN ORDERED AND NO ETA ON AVAILABILITY. GM MIGHT NEED TO BUY MY TRUCK BACK!
Roof flex under certain conditions Car wash loud banging and movement of Roof lining Loud bang at pavement or bridge approaches. Dealer has inspected and verified with same model. GM does not recognize problem and has no fix,vehicles with sunroof have know problem because of reinforcement of Roof
The trailer brake controller randomly shuts down. We have gone through our trailer meticulously and have found zero issues. We have used this trailer with other trucks without any issues. This truck brake controller is shutting down leaving the driver with out brakes. We almost had a wreck due to this. GM keeps telling us that it is a trailer issue however the trailer works perfectly with any other truck. Someone is going to die in a wreck of this is not addressed immediately.
The tailgate is unlatching itself (electronically). This occurs every 30 seconds when the vehicle is parked. This is a safety issue because if someone is standing or walking behind the vehicle, the tailgate will open and injure them. Because the lights activate when the tailgate unlatches, the battery was drained and the vehicle could not start. Thus damaging the life of the battery. This has occurred consistently for the last 2 days. The dealer has the part for the issue because the 2024 has a recall but 2025 (ours) does not. Please be advised, the drained and dead battery had left us stranded.