2018 GMC Sierra Denali Problems, Complaints & Recalls
- Compared with other Sierra Denali years
- More complaints than other years 6th of 18 for complaints
- Safety recalls
- None on file
- NHTSA crash rating
- Not rated
Owners have filed 17 complaints with NHTSA about the 2018 GMC Sierra Denali. That ranks 6th out of 18 Sierra Denali model years for complaints. The most reported problem area is engine (5 complaints, 29%), typically at around 107,000 miles. Complaints mention 1 injury. There are no safety recalls on file for this model year.
- 17owner complaints
- 0safety recalls
- 0NHTSA investigations
- 0complaints mentioning a crash
Complaints are unverified owner reports and are not adjusted for sales volume.
Most common 2018 GMC Sierra Denali problems
Complaints grouped by the part of the car owners reported, with the median mileage when the problem happened.
| Problem area | Complaints | Share | Median miles | Owners mention most | Typical repair cost |
|---|---|---|---|---|---|
| Engine | 5 | 29% | 107,000 | — | — |
| Service Brakes | 4 | 24% | 14,700 | — | — |
| Structure | 4 | 24% | 48,000 | — | — |
| Exterior Lighting | 3 | 18% | 4,000 | — | — |
| Steering | 3 | 18% | 14,700 | — | — |
| Electronic Stability Control (esc) | 2 | 12% | 14,700 | — | — |
| Power Train | 2 | 12% | 87,000 | — | — |
| Suspension | 1 | 6% | 28,000 | — | — |
| Unknown or Other | 1 | 6% | — | — | — |
| Wheels | 1 | 6% | 26,000 | — | — |
One complaint can list several problem areas, so shares can add up to more than 100%.
Complaints by year received
2018 GMC Sierra Denali recalls (0)
No safety recalls are on file for the 2018 GMC Sierra Denali.
To see whether a specific car still has an open recall, enter its VIN on NHTSA's official recall lookup. You can also decode a VIN here.
Recent owner reports
Short excerpts of the latest complaints filed with NHTSA, with personal details removed. Full reports can be searched on NHTSA.gov.
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…
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 while exiting a parking lot, the passengerâs side running board detached from the vehicle causing minor damages to the passengerâs side of the vehicle. There was no warning light illuminated. The dealer was contacted but…
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…
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.
Other GMC Sierra Denali years
← 2017 Sierra Denali · 2019 Sierra Denali →
See all GMC Sierra Denali problems by year, every GMC model, or the GMC VIN decoder.
Similar GMC models
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Frequently asked questions
What are the most common problems with the 2018 GMC Sierra Denali?
Owners most often report engine, service brakes, structure problems. The top one, engine, accounts for 5 complaints.
Was there a recall on the 2018 GMC Sierra Denali?
No safety recalls are on file for this model year.
Was the 2018 GMC Sierra Denali a good year?
Complaint data can't fully answer that, because counts aren't adjusted for sales. Compared with other Sierra Denali model years, the 2018 has more complaints than most years. Always get a pre-purchase inspection and check the VIN for open recalls.