2018 GMC Sierra Denali Brakes Problems
- Complaints
- 4about this part
- Share
- 24%of 17 total for the year
- Median mileage
- 14,700miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the brakes of the 2018 GMC Sierra Denali, 24% of the 17 complaints for this model year. Where a mileage was given, the median is 14,700 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“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 truck seemed to be pulling me to the right. Why I have no idea. But why is GM putting people lives at risk like this? Why are we having to suffer or put our families in jeopardy. This makes no sense. …”
NHTSA complaint #11366569, filed 2020-10, 14,700 miles“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 sorted out with a simple, software update . For some odd reason my Gmc's VIN wasn't up for a recall when it clearly needs one, im pleading for some help; I'm worried for my safety because of this manufacturer defect. …”
NHTSA complaint #11408155, filed 2021-04, 73,890 miles“1-it needs to apply the brake so hard to make it stop at 100 km/hr and above.. 2-there is a jerk on down '2nd to 1st and up shifting 1st to 2nd gear. 3-front parking sensors sensitivities is not accurate .”
NHTSA complaint #11317267, filed 2020-03Related service bulletins
- 11017173Mar 21, 2025This informational bulletin instructs the tech when fuel/fluid is needed to be tested and where it can be sent for analysis.
- 11014230Jan 31, 2025This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
- 11011709Nov 5, 2024This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
- 11000550May 3, 2024This service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty Coverage Period.
- 10242252Aug 18, 2023This technical bulletin provides information and a solution to a condition of Brake Pedal Moves or Self Applies at Full Turns.
Brakes: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2020 | 2 | 18% |
| 2019 | 8 | 31% |
| 2018 | 4 | 24% |
| 2016 | 8 | 27% |
| 2015 | 7 | 32% |
| 2014 | 4 | 29% |
| 2012 | 2 | 20% |
| 2008 | 1 | 6% |
| 2006 | 2 | 40% |
| 2004 | 5 | 45% |
| 2002 | 10 | 77% |
Other parts of the 2018 GMC Sierra Denali
5 complaintsBody and structure
4 complaintsExterior lighting
3 complaintsSteering
3 complaintsElectronic stability control
2 complaintsTransmission and drivetrain
2 complaintsOther or unknown
1 complaintsSuspension
1 complaintsWheels
1 complaints
← All problems reported for the 2018 GMC Sierra Denali
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology