Worst years for a GMC Sierra Denali
Owners have filed 332 complaints about the GMC Sierra Denali with NHTSA across model years 2002 to 2020. More of them are about the brakes than anything else.
Cleanest on record
2013 GMC Sierra Denali10 complaints — the lowest FaultScore of the graded years.
Every GMC Sierra Denali year, graded
The grade compares each year against the rest of this model's own run — never against another car. Click any bar or row to open that year's report.
| Year | Grade | Complaints | Crashes | Fires | Median miles | Most reported |
|---|---|---|---|---|---|---|
| 2020 | B | 10 | 0 | 0 | 4,850 | Engine & Cooling |
| 2019 | D | 46 | 0 | 0 | 5,269 | Brakes |
| 2018 | D | 26 | 0 | 0 | 26,000 | Engine & Cooling |
| 2017 | C | 15 | 2 | 0 | 51,800 | Engine & Cooling |
| 2016 | D | 42 | 2 | 0 | 54,000 | Transmission & Drivetrain |
| 2015 | C | 24 | 1 | 0 | 47,800 | Brakes |
| 2014 | B | 19 | 0 | 0 | 62,248 | Brakes |
| 2013 | A | 10 | 0 | 0 | 72,500 | Other & Unspecified |
| 2012 | B | 15 | 0 | 0 | 42,500 | Steering |
| 2011 | C | 40 | 0 | 0 | 62,500 | Other & Unspecified |
| 2010 | B | 12 | 0 | 0 | 45,284 | Body & Structure |
| 2009 | — | 8 | 0 | 0 | — | Other & Unspecified |
| 2008 | C | 21 | 0 | 0 | 68,000 | Body & Structure |
| 2007 | — | 2 | 0 | 0 | — | Airbags |
| 2006 | — | 5 | 1 | 0 | — | Brakes |
| 2005 | — | 5 | 0 | 0 | 70,000 | Brakes |
| 2004 | C | 15 | 2 | 0 | 40,000 | Brakes |
| 2002 | C | 17 | 3 | 0 | 76,815 | Brakes |
What breaks on a GMC Sierra Denali
Across every model year on file. Follow a row for that part's complaints and the year it was worst.
Worst in 2019
Worst in 2018
Worst in 2019
Worst in 2016
Worst in 2004
Worst in 2008
Worst in 2016
Complaints filed over time
Every complaint about every GMC Sierra Denali, by the month it reached NHTSA.
Compare the GMC Sierra Denali
Side by side on complaint history. Remember that raw totals track how many were sold as much as how good they were.