1997 Cadillac Deville vs 1997 Mercury Grand Marquis
Complaints, recalls, TSBs, investigations and safety ratings side by side, from official federal data. Last verified Sep 22, 2026. Raw complaint counts are not adjusted for sales volume.
| Metric | 1997 Cadillac Deville | 1997 Mercury Grand Marquis |
|---|---|---|
| NHTSA complaints | 269 | 316 |
| Recall campaigns | 1 | 4 |
| Service bulletins (TSBs) | 74 | 133 |
| Investigations | 5 | 7 |
| Crash reports | 4 | 11 |
| Fire reports | 8 | 6 |
| NCAP overall rating | — | — |
| EPA MPG (combined) | 18 | 18 |
| Median reported incident mileage | 82,000 mi | 80,800 mi |
Reported problems side by side
| Component | Cadillac Deville | Mercury Grand Marquis |
|---|---|---|
| Engine and Engine Cooling | 47 | 124 |
| Service Brakes, Hydraulic | 55 | 32 |
| Fuel System, Gasoline | 34 | 32 |
| Exterior Lighting | 29 | 19 |
| Steering | 22 | 22 |
| Electrical System | 28 | 12 |
| Suspension | 10 | 26 |
| Vehicle Speed Control | 3 | 24 |
Symptoms owners describe
| Stalling | 17 | 10 |
| Vibration / shaking | 12 | 11 |
| Steering problems | 9 | 0 |
| Brake problems | 7 | 9 |
| Loss of power | 6 | 0 |
| Overheating | 5 | 27 |
| Rust / corrosion | 0 | 11 |
1997 Cadillac Deville
1997 Mercury Grand Marquis
Compare all Cadillac Deville vs Mercury Grand Marquis years →
Method. Complaints are unique NHTSA reports. A vehicle that sold more units will naturally accumulate more complaints — use shares and read the underlying reports before drawing conclusions.