2015 GMC Sierra Denali Body and structure Problems
- Complaints
- 1about this part
- Share
- 5%of 22 total for the year
- Median mileage
- 15,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the body and structure of the 2015 GMC Sierra Denali, 5% of the 22 complaints for this model year. Where a mileage was given, the median is 15,000 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.
“The contact owns a 2015 Gmc Sierra Denali. While operating the vehicle, rain water from the roof mounted antenna leaked into the passenger side cabin. The contact indicated that the water caused the electronics in the vehicle to malfunction, such as the onstar and navigation system. The vehicle was taken to the dealer (ron sonet buick/Gmc in lake city, florida) where it was diagnosed that the antenna needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 15,000.”
NHTSA complaint #10994001, filed 2017-06, 15,000 milesRelated service bulletins
- 11015382Feb 20, 2025This informational bulletin provides a procedure on how to remove the paint stain that may present itself under the shipping film.
- 11014171Jan 31, 2025This service bulletin provides information on proper use of floor mats.
- 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.
- 11009764Sep 21, 2024This service bulletin provides information on Concerns or Questions Regarding Installation of Dealer Installed Accessories.
- 10250244Jan 18, 2024This preliminary informational (PI) bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers.
- 10239124Jun 30, 2023This service bulletin provides information on Paintless Dent Repair Process.
- 10235561Apr 4, 2023This preliminary informational (PI) bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers.
- 10232283Feb 17, 2023This PI provides information on Rear and Side Tempered Glass Spots (Quench Marks) and that they are a normal characteristic.
Body and structure: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2019 | 1 | 4% |
| 2018 | 4 | 24% |
| 2016 | 1 | 3% |
| 2015 | 1 | 5% |
| 2014 | 2 | 14% |
| 2013 | 2 | 25% |
| 2012 | 2 | 20% |
| 2011 | 9 | 32% |
| 2010 | 4 | 40% |
| 2009 | 2 | 29% |
| 2008 | 6 | 33% |
Other parts of the 2015 GMC Sierra Denali
7 complaintsTransmission and drivetrain
5 complaintsElectrical system
3 complaintsOther or unknown
2 complaintsAir bags
1 complaintsEngine
1 complaintsEngine cooling
1 complaintsFuel system
1 complaintsSeats
1 complaintsSteering
1 complaints
← All problems reported for the 2015 GMC Sierra Denali
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 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