2020 GMC Sierra 1500 drivetrain & axles problems
Owners reported drivetrain & axles problems in 97 complaints for the 2020 GMC Sierra 1500, 14% of the complaints on file. It is the 2nd most reported problem area for this model year.
At a glance
- Complaints
- 97 14% of this year's complaints
- Typical mileage
- 70,000 miles 17 complaints with mileage
- Crashes and fires
- 1 and 0
- Injuries and deaths
- 0 and 0
Source: NHTSA owner complaints
When drivetrain & axles problems show up
View the numbers
| Mileage | Complaints |
|---|---|
| 0k to 20k miles | 5 |
| 20k to 40k miles | 0 |
| 40k to 60k miles | 3 |
| 60k to 80k miles | 3 |
| 80k to 100k miles | 4 |
| 100k to 120k miles | 0 |
| 120k to 140k miles | 1 |
| 140k to 160k miles | 1 |
| 160k to 180k miles | 0 |
| 180k to 200k miles | 0 |
| 200k+ miles | 0 |
What the data shows
Of the 17 drivetrain & axles complaints that report mileage, the median is about 70,000 miles, and 47% were reported before 60,000 miles.
These complaints mention 1 crash.
What owners wrote
Hi, was driving Vehicle GMC 1500 Denali, vehicle Lost power, all Lites lite up on Dashboard, Vehicle Just lost power and i swerved off Road and sideswiped a Plant Holder on side of Road, damaging side passenger Rear door. I bought the truck to GMC Rvc and they said vehicle Blew Cam shaft and Lifters. I explained to them I'm very concerned for others safety in these Vehicles with the 6.2 Engine. Someone is going to get Killed or even a family.
The contact owns a 2020 GMC Sierra. The contact stated while driving at an undisclosed speed, the transmission hesitated and shifted unusually rough. No warning lights were illuminated. The vehicle was taken to an independent mechanic where it was diagnosed with a transmission valve issue. The contact was advised that the power train software needed to be updated. The contact was informed of an unknown recall; however, the VIN was not associated with a recall related to the failure. The vehicle was not repaired.
Other problems reported for the 2020 GMC Sierra 1500
- Engine 263 complaints
- Electrical system 81 complaints
- Brakes 55 complaints
- Steering 37 complaints
- Fuel system 27 complaints
- Forward collision avoidance 18 complaints
- Suspension 18 complaints
- Wipers, windshield & visibility 15 complaints