CarRecallWatchThe 2021 GMC Sierra 3500 has 5 safety recalls on file with NHTSA.
Owners have filed 20 complaints with NHTSA.
The most-reported problem area is Power Train (7 reports).
2021 GMC Sierra 3500 recalls
Rear Wheels Can Lock Up, Raising Crash Risk
Certain 2020-2021 GM full-size pickups and SUVs equipped with diesel engines may have a transmission control valve that can fail.
Tailgate May Unlatch While Parked, Risking Open Tailgate on the Road
The electronic gate-release switch on the power-unlatching tailgate can short circuit when water gets into it.
Water Can Short Brake Module and Cause Fire Risk
Some 2021-2022 Chevrolet Silverado and GMC Sierra 2500 and 3500 trucks were built with an electronic brake control module whose brake pressure modulator valve bolts may not be properly tightened.
Seat Belts May Not Be Securely Attached, Raising Crash Injury Risk
Incorrect bolts may have been used at one or more points where the seat belts attach to the vehicle.
Front Center Seat Belt May Not Restrain Occupant in Crash
Some full-size Chevrolet Silverado and GMC Sierra pickups from the 2019 to 2020 model years have a problem with the seat belt brackets for the front center seat.
Most common 2021 GMC Sierra 3500 problems
Problem areas named in the 20 complaints owners filed with NHTSA.
| Problem area | Reports |
|---|---|
| Power Train | 7 |
| Service Brakes | 5 |
| Electrical System | 4 |
| Engine | 3 |
| Unknown Or Other | 3 |
| Fuel/Propulsion System | 2 |
| Structure | 1 |
| Tires | 1 |
| Back Over Prevention | 1 |
| Visibility | 1 |
What owners report
The contact filed the complaint on behalf of the owner of a 2021 GMC Sierra 3500. The contact stated that while the vehicle owner was driving at an undisclosed speed, the driver noticed that the rear wheels were attempting to lockup. The contact stated that the failure was noticeable while driving forward and while reversing. No warning light illuminated. The vehicle was taken to the independent mechanic, where it was diagnosed with detached rear brake pads and detached rear emergency brake shoes. In addition, the rear brake caliber had seized. The vehicle owner was informed that the rear brake pads and the rear emergency brake shoes needed to be replaced, and the rear brake caliber needed
During takeoff the transmission acted as if it was in neutral while I was crossing traffic luckily, the semi truck that was coming towards me was able to stop. I had the vehicle towed to a shop. After the vehicle was towed to the shop the transmission acted normal when the mechanic searched the VIN number. There was a service bulletin issued by General Motors for this exact problem. Had the semi not been able to stop. It couldâve very well killed me or my children. I suppose if it wouldâve killed someone, maybe general motors would finally do a recall for this very disappointed in general motors and the NHTSA, the fact that this is an ongoing problem and has not been fixed and as a cust
The contact owns a 2021 GMC Sierra 3500. The contact stated that while his wife had the vehicle idling with the rear defroster activated, shortly afterwards, she observed smoke coming from the plastic on the rear sliding window. After a visual inspection, the contact's wife observed that the plastic was melting, prompting her to deactivate the rear defroster. No warning lights were illuminated. The vehicle was taken to the dealer, who was unable to determine the cause of the failure. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 26,000.
The contact owns a 2021 GMC Sierra 3500. The contact stated that while reversing, the back over prevention camera screen displayed an image of the ground. The contact stated that the image was approximately ten feet behind the vehicle. The vehicle was taken to the dealer; however, the failure was not duplicated. The dealer replaced the back over prevention camera system, however, the failure reoccurred. The contact stated that the original back over prevention camera was installed in another vehicle, and the back over prevention camera system worked as designed. The contact was informed that the back over prevention camera was not the cause of the failure. The manufacturer was made aware of
There is a known issue with these trucks with the infotainment screen blacking out, which renders the backup cameras inoperative. This is a huge safety risk and its astounding to me that this hasn't been recalled yet.
2021 GMC Sierra 3500 questions
Does the 2021 GMC Sierra 3500 have any recalls?
Yes. NHTSA lists 5 safety recalls for the 2021 GMC Sierra 3500: Rear Wheels Can Lock Up, Raising Crash Risk; Tailgate May Unlatch While Parked, Risking Open Tailgate on the Road; Water Can Short Brake Module and Cause Fire Risk; Seat Belts May Not Be Securely Attached, Raising Crash Injury Risk; Front Center Seat Belt May Not Restrain Occupant in Crash. Recall repairs are normally free at an authorized dealer.
What are the most common problems with the 2021 GMC Sierra 3500?
Based on 20 owner complaints filed with NHTSA, the most-reported problem areas are Power Train (7), Service Brakes (5), Electrical System (4).
How do I check if a recall on my 2021 GMC Sierra 3500 has been fixed?
Enter your 17-character VIN in our VIN recall check. It shows open recalls that have not been repaired on your specific vehicle. Recall repairs are normally free at an authorized dealer.