GMC Complaints

116k miles and the transmission went out. Spent almost 6k on a jasper to replace it. I don’t think I need to explain what happens when a trans goes out. It did all of those things.

The contact owns a 2019 GMC Yukon XL. The contact stated that while attempting to start the vehicle, there were abnormal sounds coming from the engine. The contact stated that the check engine warning light illuminated and started flashing. A dealer was contacted. The vehicle was towed to a dealer where it was diagnosed and determined that part in the engine had failed, and the engine needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure via email. The failure mileage was 64,747.

2024 GMC Sierra 1500. While driving approximately 75 MPH, the front chrome grille deflector came loose from the passenger side of the vehicle and started flapping. Before I could safely pull over it became detached and flew over the hood of the vehicle striking the front windshield before nearly hitting another moving vehicle behind me. This caused damage to the hood, the other driver did not stop. While the 2024 model vehicle is not listed in NHTSA Campaign Number: 25V060000 (STRUCTURE) recalled on the 2022 model, GM lists the same part number for the 2022-2024 models, therefore the recall should include these years as well. The failure mileage was 27,500.

My vehicle has the 10l80 transmission. It experienced shuddering as well as several rear wheel lock ups at highway speeds. The vehicle is now out of service, since May 19 2025. I have been told there is no answer to shipment of replacement parts.

The contact owned a 2019 GMC Sierra 3500. The contact stated while driving at approximately 45 MPH, the vehicle went into “Engine Power Reduced Mode” and the contact attempted to pull over to the side of the road, but the contact stated that the battery went dead and the vehicle shutoff. The contact shifted to park(P) and attempted to restart the vehicle; however, the vehicle failed to restart, and smoke started coming from under the hood. The contact stopped attempting to restart the vehicle, and exited the vehicle and raised the hood, and the vehicle was on fire in the engine compartment on the left side of the firewall. The contact stated that there was gray and white smoke coming from the vehicle and an odor of electrical wires burning. The contact attempted to reach for a fire extinguisher but was informed by another driver who had stopped to see if the contact needed assistance, to step away from the vehicle. The other driver saw the flames coming from the engine compartment and told the contact to step away from the vehicle because it was unsafe to attempt to extinguish the flames, and the engine compartment became engulfed in flames. The Fire Department was contacted and arrived on scene and extinguished the fire. The contact stated that the front end of the vehicle and the front bumper, hood, engine, and engine components were damaged by the fire. Additionally, the front windshield was severely damaged. The vehicle was towed to an impound lot and declared a total loss by the Insurance provider. The contact stated that the Fire Department filed an incident report. The manufacturer was not informed of the failure. The contact related the failure and the fire to NHTSA Campaign Number: 21V496000 (Equipment) which was associated with the VIN. The failure mileage was approximately 242,000.

Per my dealership, there is chaffing in the main wiring harness of the vehicle and the entire harness needs to be replaced. On recall N222391510, for Sierra's of the same year, the harness had to be replaced as well.

I am writing to formally express my concern and frustration regarding the prolonged delay in implementing a remedy for General Motors Safety Recall N252494000, which affects vehicles equipped with the L87 6.2-liter VB engine. This recall, issued in April 2025, was prompted by serious safety concerns involving sudden engine failure and loss of propulsion-conditions that significantly increase the risk of a crash. Despite the recall being acknowledged and a Special Coverage Bulletin (N252494003) issued in May 2025, there has been no clear timeline or actionable fix provided to affected vehicle owners like myself. The root causes, as identified by GM, include rod-bearing damage due to sediment and out-of-spec crankshaft dimensions-both stemming from supplier manufacturing defects. Given the severity of the issue and the number of vehicles involved (nearly 600,000), the lack of timely resolution is unacceptable. I urge the NHTSA to take further action to ensure that GM expedites the development and deployment of a permanent fix. Vehicle owners deserve transparency, accountability, and above all, safety.

I recently purchased a 2024 GMC Sierra 1500. On July 14, 2025, I was informed of a recall involving the L87 engine and a risk of loss of propulsion. This is a major safety concern that can cause the vehicle to suddenly lose power while driving. I was advised not to drive the truck due to safety reasons, but GM has not released a fix or repair solution for this recall. This issue puts my safety and the safety of others at serious risk, as the vehicle could lose power without warning on the road. I contacted the dealership (Findlay Chevrolet, Las Vegas) and GM directly, but no timeline or resolution has been provided. I am now stuck with a vehicle I cannot legally or safely drive and no support from the manufacturer to resolve the issue. There were no warning lamps or prior symptoms before the recall was issued. The problem has been acknowledged by the manufacturer but remains unresolved. The vehicle has been inspected and the recall confirmed by the dealership, but they stated there is no fix currently available. I am requesting that NHTSA take this seriously and put pressure on GM to either provide a safe solution, a loaner vehicle, or a buyback program until the recall can be resolved.

While driving back home on the interstate the vehicle suddenly started making a loud clicking noise and came to a stop, luckily I was not hit. I was able to turn it back on drive it slowly with very little power to a safe spot.

The contact owns a 2024 GMC Sierra1500. The contact received notification from the OnStar App regarding NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue and informed the contact that the vehicle could not be repaired. The manufacturer was made aware of the issue and stated that no assistance would be provided until an authorization letter was sent to the contact for the recall repair to be performed. The contact had not experienced a failure. Parts distribution disconnect.