2020 GMC Sierra Denali
Safety Score
99
Safe
Recalls
0
Complaints
8
NCAP Stars
—
Recalls (0)
No recalls found for the 2020 GMC Sierra Denali.
Owner Complaints (showing up to 50)
| Date | Component | Crash | Injuries | Summary |
|---|---|---|---|---|
| 2025-11-10 | ENGINE AND ENGINE COOLING | No | 0 | The contact owns a 2020 GMC Sierra Denali. The contact stated that while stopped at a traffic light with the brake peda… |
| 2023-04-08 | ELECTRICAL SYSTEM:STARTER ASSEMBLY | No | 0 | The contact owns a 2020 GMC Sierra Denali. The contact stated while driving 65 MPH at night, the vehicle stalled and th… |
| 2022-10-10 | FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL:SOFTWARE | No | 0 | The contact owns a 2020 GMC Sierra Denali. The contact stated while driving 75 MPH, the Adaptive Cruise Control feature… |
| 2021-06-01 | ENGINE | No | 0 | The contact's father owns a 2020 GMC Sierra Denali 3500. The contact stated that while his father was driving at an und… |
| 2020-10-29 | SERVICE BRAKES | No | 0 | TWO ISSUES BROKEN VALVE SPRING CAUSED ENGINE TO SHUT DOWN, SECOND SERVICE BRAKE, BRAKE FAILURE LIGHT, SERVICE ESC, SER… |
| 2020-10-07 | ENGINE | No | 0 | I NOTICED SEVERAL SPOTS OF OIL ON MY DRIVEWAY, I THEN INSPECTED THE UNDERSIDE OF THE ENGINE (L5P) AND NOTICED OIL DRIP… |
| 2020-08-24 | ENGINE | No | 0 | KNOCKING COMING FROM ENGINE - NOTICEABLE UNNECESSARY NOISE IN WHICH DEALER CAN NOT FIX THE PROBLEM |
| 2020-08-15 | SERVICE BRAKES | No | 0 | BRAKES SQUEAK. STARTED ABOUT 3000 MILES. I HAVE COMPLAINED TO DEALER SEVERAL TIMES. |