Structure Related Problems of the 2021 GMC Sierra 1500

Table 1 shows four common structure related problems of the 2021 GMC Sierra 1500. The number one most common problem is related to the body (six problems). The second most common problem is related to the structure (three problems).

Table 1. Structure related problems of GMC Sierra 1500

Problem Category Number of Problems
Body problems
6
Structure problems
3
Tailgate problems
1
Door problems
1

Recently reported Structure problems of the 2021 GMC Sierra 1500

The Body problem

There is a water leak in the rear passenger compartment of my vehicle. Unsure where water is coming from. Continued leaking poses a risk to my safety as I may be exposed to black mold as well as anyone else who is riding in my vehicle.   Read details...

The Structure problem

The contact owns a 2021 GMC sierra ld crew. The contact stated that while driving on the highway at an undisclosed speed, the vehicle's bedrail attachment fully detached from the vehicle. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure.   Read details...

The Tailgate problem

The contact owns a 2021 GMC Sierra 1500. The contact stated that after parking the vehicle, it was discovered that the electronic multifunction tailgate had erroneously opened. Also, during the failure the tailgate struck a scooter lift that was attached to the vehicle.   Read details...


Structure related problems in other GMC Sierra 1500 model year vehicles:



Sierra 1500 Service Bulletins
Sierra 1500 Safety Recalls
Sierra 1500 Defect Investigations