2018 GMC Sierra Denali Recalls
No NHTSA recalls on record for the 2018 GMC Sierra Denali. That means NHTSA has no open safety campaign for this vehicle — it does not guarantee the absence of problems. Owners have filed 26 complaints with NHTSA, most often about the engine. Last updated July 5, 2026.
Complaints by component
What owners report
Verbatim reports filed with NHTSA, lightly edited for readability and with personal information removed.
“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…”
“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…”
“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.…”
“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…”
“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.”
“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…”
“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…”
“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…”
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL, FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 2018 GMC Sierra Denali as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.