8.3

pretty bad
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
4,051 miles

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problem #5

Mar 162021

Sierra 1500

  • 11,000 miles
The contact owns a 2020 GMC Sierra 1500. The contact stated that upon exiting the vehicle, he noticed that the vehicle was leaking an unknown fluid. There was no warning light illuminated. The vehicle was taken to simpson Buick GMC of buena park (6600 auto center dr, buena park, ca 90621) where it was diagnosed with the torque converter needing to be replaced. The vehicle was repaired however, the failure recurred. The manufacturer was not informed of the failure. The failure mileage was approximately 11,000. The VIN was unavailable.

- Norco, CA, USA

problem #4

Dec 302020

Sierra 1500

  • 5,000 miles
Car was idling and parked. Warning code showed up on dashboard ESC, electronic stability control, reduced engine power. Vehicle then displayed transmission disruption, warning light displayed as well. I was able to drive it to the dealership but the performance of the vehicle was limited by the reduced engine power. Transmission was hesitating and clunky during gear changes. My Sierra has 5,000 miles on it and the transmission was already replaced at 2,000 miles. GMC has a serious problem with this make and model. Unsure what the resolution will be, but I am no longer confident in the product GMC is selling.

- Toms River, NJ, USA

problem #3

Sep 172020

Sierra 1500

  • 5 miles
Transmission kicks when coming to a complete stop.

- West Palm Beach, FL, USA

problem #2

Aug 122020

Sierra 1500

  • 4,000 miles
At 550 miles had to tow to dealer. They said needed to reprogram transmission. Now at 4000 miles, went to start and vehicle will not do anything. No power. It is being towed to dealer again. Pretty much bought a lemon as it looks now.

- North Richland Hills, TX, USA

problem #1

Jan 132020

Sierra 1500

  • 250 miles
The truck randomly gets stuck in park. Cannot put it into drive, neutral or reverse. The car has been at the dealership since January 27, 2020. GMC wont send them the part, the dealship believes it must be a problem with the part and they are trying to fix or redesign the part before its sent out. Also I was told by my dealership another 2020 AT4 came in with the same problem. It was towed to them.

- Bay Shore, NY, USA