GMC Sierra service brakes, air problems by year
58 NHTSA owner complaints name the service brakes, air across 9 Sierra model years. The most reported year is 1999 with 26 reports.
| Year | Service Brakes, Air reports | Share | Median mileage | |
|---|---|---|---|---|
| 2002 Sierra | 4 | 2% | — | |
| 2001 Sierra | 7 | 3% | — | |
| 2000 Sierra | 11 | 2% | — | |
| 1999 Sierra | 26 | 4% | 50,870 mi | |
| 1998 Sierra | 2 | 1% | — | |
| 1997 Sierra | 5 | 2% | — | |
| 1996 Sierra | 1 | 0% | — | |
| 1995 Sierra | 1 | 0% | — | |
| 1994 Sierra | 1 | 1% | — |
Share is the fraction of that year’s complaints naming the service brakes, air. Raw counts are not adjusted for sales volume — years that sold more units naturally accumulate more reports.