1,833 of the 3,662 complaints about the GMC Sierra 1500 (50.1%) concern Engine, making it the model's largest problem area. That share is 2.2× the Engine share across all tracked vehicles.
1,833Complaints · Engine
50.1%Share of complaints
2.25×vs. all vehicles
863Last 12 months
1.2%Share involving a crash or fire
1Related recalls
Analysis
863 Engine complaints were filed in the last 12 months versus 783 in the 12 months before — up 10%.
22 of these reports (1.2%) describe a crash or fire, with 5 injuries and 0 deaths mentioned.
1 recall campaign relates to this area, most recently campaign 25V274000 (2025-04-24, model years 2021, 2022, 2023 and 2024).
5/08/2026: I stopped outside my garage. I then placed the truck in park and exited the vehicle while running. I went inside my garage and several minutes later, heard a crash.
Engine · 2026-10-08 · ODI 11769781 · Crash
The contact owns a 2021 GMC Sierra 1500. The contact stated that while the vehicle was parked, the battery charge indicator to zero. The vehicle lost motive power, and the vehicle was unable to exceed 30 MPH while driving. The vehicle was driven in LIMP Mode.
Engine · 2026-09-28 · ODI 11767454
2021 GMC with 6.2L motor. The engine begin to produce a clattering noise in the upper part of the engine. When the clattering happens the vehicle will shudder.
Engine · 2026-10-13 · ODI 11770868
Vehicle is a 2021 GMC Sierra with 3.0 Diesel. Coolant control valve is bad. Vehicle has 108,000 miles. GM issued Bulletin N252508341 extending the warranty to 15 years or 150,000 miles for 2021-2022 GMC Sierra.
Engine · 2026-10-12 · ODI 11770585
While towing a trailer on 6/26/26, the 6.2L L87 engine suffered a sudden drop in oil pressure, began knocking, and completely lost motive power on the roadway.
Engine · 2026-10-12 · ODI 11770706
I was approaching an intersection about to make a left turn as the turn signal was flashing yellow and my truck just stopped accelerating.
Engine · 2026-10-12 · ODI 11770641
Excerpts from complaints filed with NHTSA, trimmed for length. The ODI number is NHTSA's record identifier.
Related recalls
ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL Campaign 25V274000 · 2025-04-24 · Model years: 2021, 2022, 2023, 2024
Summary: General Motors LLC (GM) is recalling certain 2021-2024 Cadillac Escalade and Escalade ESV, Chevrolet Silverado 1500, Suburban, and Tahoe, GMC Sierra 1500, Yukon, and Yukon XL vehicles equipped with a 6.2L V8 gas engine. The connecting rod and/or crankshaft engine components may have manufacturing defects that can lead to engine damage and engine failure.
Remedy: Dealers will inspect the engine, and as necessary, repair or replace the engine. For vehicles that pass inspection, dealers will add higher viscosity oil, install 6 oil fill cap, replace the oil filter, and update the owner's manual. Repairs will be performed free of charge. Owner notification letters were mailed June 18, 2025. Owners may contact Cadillac customer service at 1-800-333-4223, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is N252494000.
Why modern engines burn oil, and what owner complaints revealDesign choices linked to oil consumption in recent engines, the warning signs owners describe, what counts as normal, and which tracked models currently have the highest engine share in their complaints.
