2024 GMC SIERRA 2500 Complaints

The contact owns a 2024 GMC Sierra 2500. The contact stated that the vehicle was idling roughly, and the RPM fluctuated between 500 and 1,000 RPM while idling. The check engine warning light was illuminated. Additionally, the contact stated that the fuel economy had decreased to 13 miles per gallon. The contact stated that upon scanning the vehicle, the contact retrieved DTC: P0606 and P062B. The contact related the failure to GM Campaign Number: N232415860 (Fuel Injector Flow Rate Compensation). The dealer was contacted and informed the contact that a fee would be charged for a diagnostic test. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 70,000.

This vehicle exhibits the same failure described in NHTSA Recall N232426400 — spontaneous unlatching after rain due to water intrusion into the exterior tailgate release switch. I’m requesting a goodwill replacement under GM bulletin # N232426400 as the failure mechanism and part are identical. It has caused brake failure and nearly killed me because of battery drain while driving. All American Chevrolet of Midland Texas is refusing to solve the problem and says no recall is available.

LED instrument cluster goes blank. No speedometer, no fuel gauge, oil gauge, nothing.

DRIVING THE SPEED LIMIT OF 55 ON A PAVED ROAD, NO WEATHER CONDITIONS AND THE REAR DRIVER SIDE TIRE EXPLODED. WHEN THIS HAPPENED THE TRUCK SLID ACROSS THE ROAD INTO THE OTHER LANE. LUCKILY NO ONE WAS COMING IN THE OTHER LANE AND I WAS ABLE TO GET THE TRUCK UNDER CONTROL. THE TIRE WAS FINE, TIRE PRESSURE WAS CORRECT BUT THE ENTIRE TREAD OF THE TIRE FLEW/BLEW OFF AND CAUSED EXTREME DAMAGE TO THE REAR DRIVER SIDE TIRE WHEEL WELL AND BACK BODY PANEL OF THE TRUCK. THE TIRE IS STILL FULL OF AIR AT THE CORRECT PRESSURE TO THIS DAY. THE TIRE SIZE IS LT 275/70 R 18 125/122 R LOAD RANGE E

Transmission shifting - faulty shifting between 25 - 55 mph. Took truck to dealership and they state that the radiator leaked coolant into the transmission. They are replacing the transmission and radiator under warranty. Truck only has 21K miles on it. Mostly all highway.

While trailering a large RV the information center sent me two warnings. The first was trailer brakes disconnected the second was service trailer brakes. Took it to the dealer they were unable to replicate so they blew me off.

The contact owns a 2024 GMC Sierra 2500. The contact stated that transmission fluid was leaking onto the garage floor. The contact stated that while driving at an undisclosed speed, the transmission hesitated before shifting. The contact stated that the check transmission warning light was illuminated. The vehicle was taken to a local dealer; however, the dealer was unable to diagnose the vehicle. The vehicle was not repaired. The contact had inquired if the transmission needed to be replaced, and was informed that transmissions were on a national back order. The manufacturer was not informed of the failure. The failure mileage was 8,808.

The contact owns a 2024 GMC Sierra 2500 equipped with BF Goodrich Tires, Tire Line: K03, Tire Size: 275/70/R18, DOT Number: (N/A). The contact stated that while driving approximately 65 MPH, the vehicle started vibrating. No warning light was illuminated. A dealer was contacted. The vehicle was taken to the dealer where it was diagnosed, and determined that the tires were out of round and provided the contact with several readings on the tires. The manufacturer was contacted, and informed the contact that the tires were out of warranty. The failure mileage was approximately 25,000.

The contact owns a 2024 GMC Sierra 2500. The contact received notification of NHTSA Campaign Number: 24V894000 (LATCHES/LOCKS/LINKAGES); and the vehicle was taken to a local dealer where the recall repair was performed; however, the contact became aware that the battery was draining, and the vehicle failed to start on more than one occasion. The contact stated that the check engine warning light remained illuminated. The local dealer was contacted; however, the vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The approximate failure mileage was 41,000.

Problem #1: Trailer brakes failed while pulling 40' fifth wheel trailer. Was driving at about 50MPH on a 55MPH road and was approaching a stop light. I went to apply my truck and trailer brakes simultaneously and quickly found out I had "lost" my trailer brake. This happened another two times within the next 10 mile trip to my house. I immediately disconnected my trailer and took my truck to the shop. The GMC Dealer fixed this issue, however, it is both scary and extremely dangerous to the public when something like this happens on a brand new truck. Problem #2: Right around 30,000 miles I was driving (unloaded) down the road at about 35MPH when I felt a hard clunk in the transmission followed by grinding noises - immediately a notice flashed on the dash stating the truck went into reduced acceleration and the check engine light came on. I brought my truck to a local GMC Dealer to be serviced on June 19th and they advised me it was the Allison transmission valve body. The part has been on back-order and my truck is still at the dealership sitting in the back lot with at least 4 other 2024 HD models. I called GM twice to inquire about Safety Recall N242454440 (covering 2020-2022 GM Vehicles) and recommend that it get extended beyond 2022 since the problem with the transmission valve body has not been resolved yet. I have not heard anything back from them since that call back in June.