2018 GMC Sierra Denali recalls & complaints
Source: NHTSA, updated daily. Last checked 2026-10-19. Recalls apply to specific VINs — run your VIN to confirm.
Recalls: check by VIN
Useful for owners
Owner complaints filed with NHTSA
Most complained-about parts: Engine (5), Body / structure (4), Brakes (4), Steering (3), Lights (3).
Complaints are unverified reports from owners. A pattern (many complaints about the same part) matters more than any single one.
Read recent complaints (8)
04/02/2026 · Transmission / drivetrain
The contact owns a 2018 GMC Sierra Denali 1500. The contact stated that on several occasions while driving at speeds over 30 MPH, the vehicle started shaking abnormally. The contact stated that the vehicle stalled while driving on three separate occasions and stalled twice while slowing down. There was no warning light illuminated. The vehicle was able to r…
03/11/2026 · Body / structure
The contact owns a 2018 GMC Sierra 1500 Denali. The contact stated that while driving at an undisclosed speed, and while the vehicle was parked, the running boards unexpectedly lowered. Additionally, there was oil leaking from the vehicle, and the check engine warning light was illuminated. The vehicle was taken to the dealer, where it was diagnosed with ca…
06/29/2023 · Body / structure
The contact owns a 2018 GMC Sierra 1500 Denali. The contact stated while exiting a parking lot, the passenger’s side running board detached from the vehicle causing minor damages to the passenger’s side of the vehicle. There was no warning light illuminated. The dealer was contacted but provided no assistance and advised the contact that the running board n…
04/14/2021 · Brakes
CERTAIN 2018 GMC SIERRA 1500 DENALIS WERE ISSUED A RECALL FOR THE "ELECTRONIC BRAKE CONTROL MODULE". FOR MY VIN, IT DOESN'T SHOW THAT THAT ISSUE NEEDS TO BE FIXED (I JUST PURCHASED THIS TRUCK LAST WEEK), BUT IT INDEED DOES. WHEN COASTING AT A LOW SPEED ON A SMALL HILL, BRAKES ALMOST FEEL NON EXISTENT. GMC RECALLED MANY OF THEIR VEHICLES TO GET THIS ISSUE SO…
04/05/2021 · Body / structure
HOOD VENT FELL OFF WHILE DRIVING NORMAL SPEEDS ON THE HIGHWAY AND HIT THE CAR BEHIND ME. I FEEL THAT THE CHEAP PLASTIC IS DEFECTIVE AND COULD CAUSE A PROBLEM WITH THE PART GOING AIRBORNE AT HIGH SPEEDS AND HITTING OTHER CARS.
12/28/2020 · Transmission / drivetrain
DRIVING DOWN THE HIGHWAY ABOUT 65MPH IT MADE A LOUD CLUNK AND I TOOK IT IN TO SERVICE DEPARTMENT AND THEY TOLD ME I WOULD HAVE TO PAY ABOUT $400.00 TO DRAIN THE TRANSMISSION FLUID AND REPLACE IT. I TOLD THEM M PICK UP ONLY HAS LESS THAN 15,000 MILES ON IT I DON'T THINK THIS IS FAIR, THE SERVICE GU SAID THE DON'T PAY FOR IT AND OTHER GMC DENALI CUSTOMERS H…
10/26/2020 · Steering
ON THE MORNING OF OCT 26, 2020 @ 845AM... I WAS HEADING SOUTH ON 287 IN MANSFIELD TX. IT WAS RAINING HARD SO I WAS ONLY GOING 60 MPH. THE CAR IN FRONT OF ME WAS GOING 55 OR SO. WHEN THE RAIN AND WIND PICKED UP, THE CAR IN FRONT OF ME ABRUPTLY HIT ITS BRAKES. THAT'S WHEN MY TRUCK BRAKES LOCKED AND I BEGAN SLIDING OR BEING PULLED TO THE RIGHT. I WAS IN THE LE…
10/26/2020 · Steering
I NEARLY DIED WHEN MY BRAKES FAILED ON MY 2018 GMC DENALI THIS MORNING. I WAS ONLY GOING 60 MPH WHEN ANOTHER DRIVER CUT IN FRONT OF ME, AND HIT THEIR BRAKES BUT WHEN I TRIED TO STOP, I COULD NOT! I THEN BEGAN SWERVING FROM LANE TO LANE BECAUSE IT WAS RAINING. THANK GOD I DIDN'T DIE AND THAT THE PERSON ON THE RIGHT SLOWED DOWN AND MOVED OUT THE WAY. THE TRUC…