Pontiac exhaust system problems
Across all Pontiac models in NHTSA's complaint database, 500 complaints involve exhaust system. The Bonneville accounts for the largest share (24%). The single worst model year is the 1998 Bonneville with 52 exhaust system complaints.
At a glance
- Complaints
- 500 about exhaust system, all Pontiac models
- Most affected
- Bonneville 24% of these complaints
- Typical mileage
- 72,000 miles 272 complaints with mileage
- Crashes and fires
- 1 and 38
Source: NHTSA owner complaints
Which Pontiac models
| Model | Complaints | Share |
|---|---|---|
| Bonneville | 120 | 24% |
| Grand AM | 111 | 22% |
| Grand Prix | 110 | 22% |
| Montana | 54 | 11% |
| Sunfire | 25 | 5% |
| Trans Sport | 18 | 4% |
| G6 | 17 | 3% |
| Vibe | 13 | 3% |
| Aztek | 10 | 2% |
| Firebird | 9 | 2% |
Worst model years for exhaust system
- 1998 Pontiac Bonneville52 complaints
- 1999 Pontiac Grand Prix31 complaints
- 2000 Pontiac Grand AM24 complaints
- 1999 Pontiac Grand AM23 complaints
- 1999 Pontiac Montana18 complaints
Exhaust system complaints by model year
View the numbers
| Model year | Complaints |
|---|---|
| 1990 | 5 |
| 1991 | 2 |
| 1992 | 6 |
| 1993 | 16 |
| 1994 | 12 |
| 1995 | 35 |
| 1996 | 42 |
| 1997 | 45 |
| 1998 | 74 |
| 1999 | 85 |
| 2000 | 53 |
| 2001 | 47 |
| 2002 | 28 |
| 2003 | 14 |
| 2004 | 5 |
| 2005 | 5 |
| 2006 | 9 |
| 2007 | 4 |
| 2008 | 6 |
| 2009 | 7 |
Among the 272 of these complaints that report mileage, the median is about 72,000 miles.
Complaint counts are not adjusted for how many vehicles each brand sells, so large brands naturally have more complaints.