GMC Sierra Denali service brakes problems by year
23 NHTSA owner complaints name the service brakes across 3 Sierra Denali model years. The most reported year is 2019 with 8 reports.
| Year | Service Brakes reports | Share | Median mileage | |
|---|---|---|---|---|
| 2019 Sierra Denali | 8 | 31% | — | |
| 2016 Sierra Denali | 8 | 27% | — | |
| 2015 Sierra Denali | 7 | 32% | — |
Share is the fraction of that year’s complaints naming the service brakes. Raw counts are not adjusted for sales volume — years that sold more units naturally accumulate more reports.