2021 Chevrolet Silverado 2500 owner complaints
89 complaints filed with NHTSA, including 2 crashes, 1 fire, 2 injuries and 0 deaths.
Problems by component
Forward Collision Avoidance3 Recent complaints
October 27, 2026Fuel/Propulsion System
When leaving work my truck would crank but not start. Started searching fixes on the internet. I found many people talking about a known issue with the fuel pump control module. Called the dealer and the dealer already knew of this issue in my year model truck. I purchased the fuel pump control module and fixed the problem. I purchased this module at full price because there is no recall on my VIN number. One week later a coworker had the same issue on his 2024 truck and his truck was covered under warranty.
October 6, 2026Power TrainForward Collision Avoidance
Vehicle braking does not work- since new- dealer said it was funcitioning- sometimes you will get the warning and other times it does not and it never brakes. Transmission- i received a letter to bring truck in to have a software update for modulator valve wear....which was performed...since that time the stator and the torque converter were replaced in September/October of 2025. it was in dealership approx. 6 weeks for the repairs. Since that time i have had the vehicle roll forward when in reverse and pedal depressed, I have had hard shifts when shifting into gear at a stop, severe enough to lurch the truck forward and break traction....i have started having three to four downshifts very a
September 29, 2026Structure
I opened my passenger front door to load and the tailgate opens and closes by itself but doesn’t and remains open. I physically shut the tailgate and it opened again by itself. I started my truck to see if it would stop. It didn’t stop until I put my truck in reverse to back out of the garage. After I backed out and the tailgate stopped open. I closed it and the tailgate will not open by pressing the button on the tailgate. It will open if I use my key fob.
September 29, 2026Engine
The contact owns a 2021 Chevrolet Silverado 2500. The contact stated that while driving 15 MPH, there was a knocking sound coming from the engine. The vehicle was taken to the local dealer, and the contact was informed that the engine was blown causing complete engine failure. The engine was replaced under warranty, but the failure reoccurred. The warranty company inspected the vehicle. The failure mileage was approximately 121,000.
September 23, 2026Power Train
Pulling out from a stop sign, a loud bang came from the transmission, and rear wheels momentarily locked up then truck acted like it was in neutral. Truck was able to drift to side of road. We called our GM dealer, and they told us that our warranty had expired. We had the truck towed to our certified repair shop. After review of truck, the mechanic called and said the output shaft of the transmission broke. The mechanic called GM and asked if there was any financial assistance for this problem and they said no. He ordered a transmission through GM, and we had to pay for transmission upfront. The amount was 6627.05. Since then as we researched, we found out that GM has a Goodwill assistance