2020 GMC Canyon

Truck feels like it is going over rumble strips when accelerating. There is a NTHSA bulletin for this. 21-NA-047

NHTSA ID

11756765

Incident

Aug 10, 2026

The main issue is the transmission... It shudders. Now I have to change the oil every 10K miles on it, or it will start shuddering again. It first started when the truck had 50K or a little more miles in it. The issue was resolved, I thought... Then it did it again at 69K (Just out of the warranty). I called the dealership and they stated I had to pay if I wanted an oil change, and they could not do an oil flush even if I paid for it. So I said OK, I will take it to a mechanic, and I did and "fixed" the problem. I used the oil GM recommended and the shuddering stopped. BUT then, another 10K miles and it starts again. I have changed the oil a lot of times... It now has 128K miles in it, and this last time, I had to change the oil at 9k miles because of the shuddering... What will be next? I will have to change it at 5K miles, just like the motor oil? It is sad to see all these people having the same issue as I do, and GM does not do anything about it. I've done a lot of research... There is a guy that fixes the issue eliminating a specific valve, in the transmission, and updating the other ones with higher quality valves they make to fix the problem. I'm sure it would cost GM some money, but these trucks are expensive, you know? It is sad that no one is trying to help consumers when companies sale these cars and trucks to the public for a very high price and they do not take care of the mistakes they make when producing them. Please help us making GM fix this transmission issues. It is not fare for us consumers to be having trouble with new vehicles. Thank you for your time.

NHTSA ID

11711123

Incident

Mar 16, 2023

The contact owns a 2020 GMC Canyon. The contact stated that while her son was attempting to park the vehicle in a parking garage, there was a loud screeching sound coming from the vehicle while depressing the brake pedal. The contact's son used excessive force to depress the brake pedal, and an unknown warning light illuminated. Due to the failure, the vehicle was towed to an independent mechanic, where the vehicle was diagnosed with a vacuum pump failure, which caused the end of the cam shaft to fracture. The contact called several dealers and was informed that the cam shaft was on backorder. The contact stated that one of the dealers stated that the failure was a common issue resulting in the part being on backorder. The manufacturer was also notified of the failure and referred the contact to the NHTSA Hotline. The contact was informed that only the NHTSA could place a recall on the vehicle. The cam shaft and vacuum pump had been repaired. The failure mileage was approximately 80,000. The VIN was not available.

NHTSA ID

11693914

Incident

Oct 1, 2025

Mileage

80,000 mi

The contact owns a 2020 GMC Canyon. The contact stated upon depressing the brake pedal and turning the key in the ignition switch to turn off the vehicle, the key failed to turn to the OFF position and remained stuck. There was no warning light illuminated. The contact stated that upon turning the key back to the ON position and moving the gear shifter several times, the contact was able to turn off the vehicle successfully. The contact stated that the failure had been recurring, and on several occasions, the key could not be released and was left in the ignition switch. The dealer and the manufacturer were not notified of the failure. The vehicle was not diagnosed or repaired. The failure mileage was approximately 23,000.

NHTSA ID

11639350

Incident

Dec 15, 2024

Mileage

23,000 mi

See attached document for complaint

NHTSA ID

11577092

Incident

Oct 19, 2023

The contact owned a 2020 GMC Canyon. The contact stated that while driving at 45 MPH, he crashed into the vehicle in front. The contact stated that the vehicle was switching lanes abruptly, and did not have enough time to slow down or stop. No warning lights were illuminated on the vehicle. The air bags did not deploy. The vehicle was towed to a yard by the police department. A police report was filed. The contact sustained back, arm, neck, fractured ribs, lung, and head injuries that required medical attention. The vehicle was deemed destroyed. The manufacturer was notified of the failure and a case was opened. The failure mileage was 58,000.

NHTSA ID

11564168

Incident

Dec 18, 2023

Mileage

58,000 mi

The wiring in most vehicles 2020 and newer are soy/ nut based product… which squirrels, rodents and other animals can’t resist and the wiring throughout the vehicle is being chewed this all makes all models all manufacturers… there is also problems with the 8 speed transmission that shutters and hard gear changing and the quick fix is to flush out and refill it with transmission fluid

NHTSA ID

11559477

Incident

Nov 20, 2023

The contact owns a 2020 GMC Canyon. The contact stated while driving 40 MPH, the vehicle hesitated, and the steering wheel became difficult to turn. The contact stated several unknown warning lights were illuminated. The contact parked on the side of the roadway. The vehicle was not drivable. The contact towed the vehicle to her residence and then to the local dealer, where it was diagnosed with needing the power steering module to be replaced. The vehicle was not repaired. The manufacturer had not been informed of the failure. The failure mileage was approximately 63,432.

NHTSA ID

11518197

Incident

Apr 14, 2023

Mileage

63,432 mi

This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.

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This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.