2022 GMC Sierra 1500

Vehicle has been maintained at GM authorized dealership according to manufacturer recommendations. 6.2L recall was performed as recommended by manufacturer at approximately 25k miles. Engine failed at 36000 miles. The failure created a safety situation where vehicle suddenly lost propulsion power on the interstate. GM replaced the engine with a remanufactured engine. Vehicle was out of service for approximately 90 days. My family has lost confidence in the vehicle and unfortunately because of the now known issues with this engine the vehicle has lost significant value, making it nearly impossible to trade the vehicle in for something reliable.

The hood molding flew off my vehicle as I was traveling down the interstate. I did not hit anything, it just randomly flew off of my vehicle. The piece flew off and just barely missed the vehcile behind me. If that would of hit the other vehicle, it would of caused damage to their vehicle, and potentially could of caused an accident. The piece that fell off was the trim piece that is diretly below the hood latch and above the front grille. There was no incidcators that this was going to happen. I see there was a recall on the same model and year vehicle as mine but for chrome grilles. The recall # is 25V-060.

While driving down the street pulling a trailer the engine stopped. I was able to get it to the side of the road. I called the GMC dealer and they dispatched a wrecker. No prior warnings, just a check engine light right before it failed and lost momentum. This is the second of three new trucks from GMC with engine failure, 1st was lifters, and the other two were bearing locked up. All maintenance was performed by the Dealership on all three trucks

At around 1,500 miles the truck reduced power. I was able to drive it to the dealership. The dealership reported the lifters had failed and it would be 5-6 months to repair because of the parts shortage.

I request that GM and NHTSA investigate whether recall N242490120 / NHTSA recall 25V060 was properly performed and effective, determine why the deflector detached, and assess whether improper installation, defective parts, inadequate fastening, impact, road debris, or another cause was responsible. Evidence and Records Requested Please review or provide: • Complete recall-repair records, including repair orders, technician notes, procedures, parts and fastening specifications, photographs, repair date and mileage, personnel identities, and attachment-point inspections. • An explanation for the discrepancy between the April 18, 2025 myGMC date and April 28, 2025 GM VIN-lookup date. • Dealership inspection findings, photographs, measurements, and conclusions. • GM repair instructions, technical guidance, recall-validation records, and engineering analyses. • A written determination of the probable cause and whether this was a remedy failure, improper installation, defective part, unrelated damage, or unresolved cause. • Criteria for determining whether the grille must be replaced or repaired. • Warranty, goodwill, claim, technical-assistance, and customer-service records. • Similar complaints, warranty claims, field reports, damage reports, and recurrence data. Corrective Actions Requested I request that GM identify the cause, determine whether the grille must be replaced, and assess whether the attachment can be repaired. If the incident resulted from the recall condition, repair, improper installation, defective parts, or failure of the remedy, I request no-cost repair or reimbursement, including grille replacement. If GM attributes the incident to unrelated damage or an external event, I request the supporting evidence and technical basis. I request that NHTSA determine whether additional oversight or corrective action is warranted to prevent recurrence and road-debris hazards.

The contact owns a 2022 GMC Sierra 1500. The contact stated that the vehicle intermittently failed to start and was jumpstarted on each occurrence. The contact purchased and installed a new battery; however, the failure persisted. The vehicle was taken to an authorized dealer, where it was diagnosed that a corroded ground strap had caused an electrical short to the battery. The dealer replaced the ground strap, and the vehicle was repaired. The contact associated the failure with Customer Satisfaction Program: N252515590; however, the VIN was not included. The failure mileage was unknown.

The contact owns a 2022 GMC Sierra 1500. The contact stated that while driving 25 MPH, the contact entered a parking lot and shifted the vehicle into park and the message “Shift to Park” was displayed. Additionally, the check engine warning light illuminated. The contact stated that the failure had occurred on several occasions. Due to the failure, the contact was unable to start the vehicle. The failure mileage was approximately 74,000.

No warning. It’s been replaced by Gm and a week later now it’s in the shop again because it’s acting up.

I am filing this complaint regarding a potentially serious safety defect involving my 2022 GMC Sierra 1500 Denali four-wheel-drive with the V8 5.3 engine. The vehicle had approximately 28,786 miles at the time of the incident. While traveling on an interstate highway in heavy traffic, my truck suddenly lost engine power. I was extremely fortunate that I was able to maneuver through traffic and get the vehicle onto the shoulder without being struck by another vehicle. A sudden loss of engine power under these conditions could easily have resulted in a serious or fatal collision. Immediately follow the incident Onstar detected diagnostic trouble code P129F The vehicle was subsequently taken to an authorized GM dealership. The dealership diagnosed the problem and replaced the fuel pump power control module to repair the vehicle. I have since learned that General Motors issued service bulletin 24 –NA-139 concerning this condition. The bulletin specifically includes 2022 GMC Sierra 1500 vehicles and identifies loss of power stalling and DTC P129F among the possible symptoms. GM states the condition may be caused by an internal short in the K111 fuel pump driver control module/fuel pump, power control module. I am particularly concerned that GM has been aware of this potential failure condition since at least 2024. A failure capable of causing a vehicle to suddenly lose engine power while traveling at Internet speeds presents amsafety hazard not only to the occupants of the affected vehicle but also to surrounding motorist. I respectfully request that NHTSA review this issue including other owner complaints involving error code P129F, fuel pump power control, module failures, stalling, or sudden loss of power in affected GMC Sierra and related to GMC vehicles and determine whether a safety defect investigation or recall is warranted. Vehicle: 2022 GMC Sierra 1500 Denali four-wheel-drive Engine: 5.3 L V8

I was driving today with product resting on the tailgate and the tailgate dropped while turning a corner, spilling product on the street. It was a residential street, thankfully, but it has happened on the highway. Previously, I had bikes resting on the tailgate and the same thing happen. Tailgate will randomly drop while driving, especially with a little weight resting on it. I close it completely, but doesn't seem to matter. It has become a concern and safety issue.