Mercury Grand Marquis vs Pontiac Bonneville
Owner complaints, worst years and recall history side by side, from official NHTSA data. Last verified Aug 8, 2026. Raw complaint counts are not adjusted for sales volume.
Mercury Grand Marquis
- Total complaints
- 3,910
- Avg per model year
- 131
- Recall campaigns (all years)
- 17
- Most complained year
- 2005 (487)
Top problems: Exterior Lighting, Electrical System, Vehicle Speed Control
Pontiac Bonneville
- Total complaints
- 1,949
- Avg per model year
- 94
- Recall campaigns (all years)
- 4
- Most complained year
- 1998 (277)
Top problems: Engine and Engine Cooling, Electrical System, Service Brakes, Hydraulic
Complaints by model year
| Year | Mercury Grand Marquis | Pontiac Bonneville | ||
|---|---|---|---|---|
| 2005 | 487 | 27 | ||
| 2004 | 347 | 28 | ||
| 2003 | 362 | 54 | ||
| 2002 | 78 | 89 | ||
| 2001 | 157 | 129 | ||
| 2000 | 162 | 214 | ||
| 1999 | 164 | 143 | ||
| 1998 | 143 | 277 | ||
| 1997 | 316 | 147 | ||
| 1996 | 239 | 150 | ||
| 1995 | 179 | 244 | ||
| 1994 | 156 | 88 | ||
| 1993 | 144 | 138 | ||
| 1992 | 255 | 113 | ||
| 1991 | 82 | 22 | ||
| 1990 | 56 | 39 | ||
| 1989 | 58 | 28 | ||
| 1988 | 73 | 17 | ||
| 1987 | 43 | 19 | ||
| 1986 | 21 | 3 |
Method. Complaints are unique NHTSA reports per model year. A model that sold more units will naturally accumulate more complaints — compare the shape across years, not just the raw totals, and read the year pages for what actually fails.