2008 GMC Sierra Denali Other or unknown Problems
- Complaints
- 3about this part
- Share
- 17%of 18 total for the year
- Median mileage
- 78,500miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the other or unknown of the 2008 GMC Sierra Denali, 17% of the 18 complaints for this model year. Where a mileage was given, the median is 78,500 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.
“Dash board in cracking in two places over the speedometer and two places above the airbag. Cracks are continuing to appear on my dashboard which raises a concern of whether it would shatter if the airbag was to inflate during a accident.”
NHTSA complaint #11014532, filed 2017-08, 120,000 milesRelated service bulletins
- 11023091Sep 9, 2025New Vehicle Monitoring Programs Section in IVH
- 11021792Aug 7, 2025This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the…
- 11020816Jul 18, 2025This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.
- 11019074May 30, 2025This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and…
- 11019073May 30, 2025This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and…
- 11019072May 30, 2025This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and…
- 11017252Mar 28, 2025This service bulletin provides information for dealers/technicians on OnStar Module 2G Sunset Information.
- 11008956Sep 9, 2024This service bulletin provides information for dealers/technicians on When and How to Submit a Field Product Report (FPR) (U.S. and Canada Dealers Only).
- 11007208Sep 6, 2024This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire…
- 11006682Aug 9, 2024This service bulletin provides information on a guide to help reduce repeat visits for the same customer concern.
Other or unknown: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2019 | 5 | 19% |
| 2018 | 1 | 6% |
| 2017 | 3 | 20% |
| 2016 | 2 | 7% |
| 2015 | 2 | 9% |
| 2014 | 4 | 29% |
| 2013 | 6 | 75% |
| 2012 | 3 | 30% |
| 2011 | 17 | 61% |
| 2010 | 4 | 40% |
| 2009 | 3 | 43% |
| 2008 | 3 | 17% |
Other parts of the 2008 GMC Sierra Denali
6 complaintsAir bags
3 complaintsElectrical system
2 complaintsBrakes
1 complaintsElectronic stability control
1 complaintsExterior lighting
1 complaintsFuel system
1 complaintsLatches, locks and linkages
1 complaintsVisibility (wipers, defrost, mirrors)
1 complaintsWheels
1 complaints
← All problems reported for the 2008 GMC Sierra Denali
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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