Built from NHTSA complaints and recalls collected for this model, generated September 21, 2026. Totals reflect what has been collected, not every complaint ever filed.

Recalls

0 total

Safety issues the manufacturer must repair for free. A recall means confirm the fix was done, not walk away.

No recalls on record for this model

No safety recalls were found in this dataset. It is still worth entering the exact VIN on NHTSA before purchase, since recalls can be added at any time.

Owner complaints by system

11 total

Unverified reports owners filed with NHTSA, grouped by the part of the car. Useful for spotting patterns. Open a group to read recent examples.

Engine & powertrain

Minor8

Most reports here involve fluid leaks.

fluid leaks 1software faults 1
A recent report: The contact owns a 2020 GMC Sierra Denali. The contact stated that while driving with Adaptive Cruise Control set to 55 MPH, the vehicle suddenly accelerated. The contact depressed the brake pedal to…
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The contact owns a 2020 GMC Sierra Denali. The contact stated that while driving with Adaptive Cruise Control set to 55 MPH, the vehicle suddenly accelerated. The contact depressed the brake pedal to disengage the Adaptive Cruise Control settings, preventing the vehicle from crashing into the vehicle ahead. The contact stated that the failure had occurred while the Adaptive Cruise Control was engaged. The approximate failure mileage was 99,000.

Source: NHTSA complaint ODI #11764047 · view all complaints for this vehicle at nhtsa.gov

Electrical & infotainment

Minor1

Most reports here involve sudden stalling.

sudden stalling 1
A recent report: The contact owns a 2020 GMC Sierra Denali. The contact stated while driving 65 MPH at night, the vehicle stalled and the “Shift to Neutral and Restart Vehicle” message was displayed. The contact was…
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The contact owns a 2020 GMC Sierra Denali. The contact stated while driving 65 MPH at night, the vehicle stalled and the “Shift to Neutral and Restart Vehicle” message was displayed. The contact was unable to restart the vehicle and was unable to visibly see the roadway. The contact was able to park on the side of the road. The vehicle was not drivable. The contact towed the vehicle to his residence, and then to the local dealer the next day, where the vehicle was diagnosed with needing the starter to be replaced. The vehicle was repaired. The manufacturer had not been informed of the failure. The failure mileage was unknown.

Source: NHTSA complaint ODI #11519126 · view all complaints for this vehicle at nhtsa.gov

Brakes

Minor2

Most reports here involve loss of braking.

loss of braking 1
A recent report: BRAKES SQUEAK. STARTED ABOUT 3000 MILES. I HAVE COMPLAINED TO DEALER SEVERAL TIMES.

Source: NHTSA complaint ODI #11406920 · view all complaints for this vehicle at nhtsa.gov

Is 11 complaints a lot? They were filed between 2020 and 2026, roughly 2 a year, which is about the same as the typical model in this dataset. We do not have sales figures for this model, so treat this as a rough volume, not a rate per car on the road. Popular, high-volume models naturally collect more complaints over time.