Worst years for a Pontiac Bonneville
Owners have filed 2,580 complaints about the Pontiac Bonneville with NHTSA across model years 1977 to 2005. More of them are about the engine & cooling than anything else.
Avoid
1998 Pontiac Bonneville359 complaints — the highest FaultScore of any year, mostly engine & cooling.
Cleanest on record
2004 Pontiac Bonneville38 complaints — the lowest FaultScore of the graded years.
Every Pontiac Bonneville 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 |
|---|---|---|---|---|---|---|
| 2005 | B | 37 | 5 | 1 | 130,000 | Airbags |
| 2004 | B | 38 | 0 | 2 | 43,000 | Electrical System |
| 2003 | C | 67 | 4 | 6 | 80,500 | Engine & Cooling |
| 2002 | C | 113 | 5 | 4 | 48,927 | Steering |
| 2001 | D | 179 | 6 | 24 | 65,000 | Steering |
| 2000 | D | 301 | 4 | 23 | 65,000 | Windows, Mirrors & Wipers |
| 1999 | C | 176 | 9 | 9 | 70,096 | Engine & Cooling |
| 1998 | D | 359 | 12 | 40 | 70,226 | Engine & Cooling |
| 1997 | C | 188 | 3 | 25 | 98,774 | Engine & Cooling |
| 1996 | C | 181 | 6 | 11 | 110,000 | Engine & Cooling |
| 1995 | D | 330 | 18 | 4 | 115,500 | Engine & Cooling |
| 1994 | C | 123 | 14 | 10 | 127,000 | Electrical System |
| 1993 | D | 183 | 17 | 12 | 147,000 | Brakes |
| 1992 | — | 139 | 17 | 5 | 153,000 | Brakes |
| 1991 | — | 26 | 4 | 1 | — | Brakes |
| 1990 | — | 45 | 4 | 1 | — | Brakes |
| 1989 | — | 35 | 3 | 0 | — | Brakes |
| 1988 | — | 20 | 3 | 1 | — | Electrical System |
| 1987 | — | 24 | 1 | 1 | — | Steering |
| 1986 | — | 3 | 0 | 0 | — | Transmission & Drivetrain |
| 1985 | — | 2 | 0 | 0 | — | Seat Belts |
| 1984 | — | 1 | 0 | 0 | — | Wheels |
| 1982 | — | 1 | 0 | 0 | — | Engine & Cooling |
| 1981 | — | 2 | 0 | 0 | — | Engine & Cooling |
| 1979 | — | 2 | 0 | 0 | — | Electrical System |
| 1978 | — | 4 | 0 | 0 | — | Tires |
| 1977 | — | 1 | 0 | 0 | — | Steering |
What breaks on a Pontiac Bonneville
Across every model year on file. Follow a row for that part's complaints and the year it was worst.
Exactly what failed on a Pontiac Bonneville
The named sub-assemblies behind those complaints, across every model year.
Complaints filed over time
Every complaint about every Pontiac Bonneville, by the month it reached NHTSA.
Pontiac Bonneville problems by state
Where owners filed from. Heavier states are usually just bigger markets, but a part that fails in heat or salt shows up here first.
Compare the Pontiac Bonneville
Side by side on complaint history. Remember that raw totals track how many were sold as much as how good they were.