Table 1 shows one common seats related problems of the 2018 GMC Sierra 1500.
| Problem Category | Number of Problems |
|---|---|
| Seats problems |
I purchased a 2018 GMC Sierra 1500 6. 2 denali new. I followed all service requirements including oil changes by gm dealerships. 2025 I noticed my truck power was decreasing. Than I started to hear knocking noses. I took it to a dealership for diagnosis but they couldn't identify anything. Finally it started to skip this is when a dealership diagnose it as being an issue with the active fuel management system. They said my lifters, camshaft, and various other parts was damaged and had to be replaced. Additionally, they said it was a recall on 6. 2 engines with the same identical issue but my year wasn't included. The cost to repair approximately 10,000. I really need your attention to this matter! September 10, 2025 my truck placed me and others in danger when it lose engine power. Also my engine light was on for the first time.
Tl the contact owns a 2018 GMC Sierra 1500. The contact stated that the driver's seat made popping noises and moved from side to side while the vehicle made turns. The manufacturer issued an unknown technical service bulletin, but it was not covered under a warranty. The vehicle was taken to colonial Buick GMC (3965 atlanta hwy, loganville, GA 30052, (678) 922-9606), but they refused to inspect the condition of the seat. The dealer also refused to notify the manufacturer. The dealer acknowledged the service bulletin, but claimed that they could not duplicate the failure. The manufacturer was not contacted. The vehicle was not diagnosed or repaired. The failure mileage was 28,000.