Table 1 shows nine common engine and engine cooling related problems of the 2021 GMC Sierra 1500. The number one most common problem is related to the engine and engine cooling (233 problems). The second most common problem is related to the engine cooling system (six problems).
The contact owns a 2021 GMC Sierra 1500. The contact stated that while operating the vehicle, the check engine warning light illuminated and remained illuminated. While driving at various speeds, the vehicle entered limp mode, causing the vehicle to decelerate. Read details...
The contact owns a 2021 GMC Sierra 1500. The contact stated while driving 65 mph, the vehicle was shaking abnormally with the check engine warning light illuminated. The contact pulled over to the side of the road and had the vehicle towed to the residence. Read details...
Traveling on interstate going at the posted speed limit and turned off the interstate onto my exit turn and vehicle engine started knocking and engine shut off oil warning light came on all while trying to stop the vehicle at the cross traffice stop sighn and ended up stopped in the middle of Read details...