GMC Sierra Denali power train problems by year
20 NHTSA owner complaints name the power train across 4 Sierra Denali model years. The most reported year is 2016 with 9 reports.
| Year | Power Train reports | Share | Median mileage | |
|---|---|---|---|---|
| 2019 Sierra Denali | 4 | 15% | — | |
| 2016 Sierra Denali | 9 | 30% | — | |
| 2015 Sierra Denali | 5 | 23% | — | |
| 2011 Sierra Denali | 2 | 7% | — |
Share is the fraction of that year’s complaints naming the power train. Raw counts are not adjusted for sales volume — years that sold more units naturally accumulate more reports.