2007 Jeep Grand Cherokee vs 2007 Mercury Mariner
Complaints, recalls, TSBs, investigations and safety ratings side by side, from official federal data. Last verified Aug 8, 2026. Raw complaint counts are not adjusted for sales volume.
| Metric | 2007 Jeep Grand Cherokee | 2007 Mercury Mariner |
|---|---|---|
| NHTSA complaints | 1,108 | 33 |
| Recall campaigns | 5 | 2 |
| Service bulletins (TSBs) | 66 | 15 |
| Investigations | 2 | 1 |
| Crash reports | 31 | 1 |
| Fire reports | 11 | 0 |
| NCAP overall rating | — | — |
| EPA MPG (combined) | 12–20 | 19–27 |
| Median reported incident mileage | 69,290 mi | 80,000 mi |
Reported problems side by side
| Component | Jeep Grand Cherokee | Mercury Mariner |
|---|---|---|
| Electrical System | 658 | 7 |
| Power Train | 196 | 11 |
| Engine | 169 | 7 |
| Engine and Engine Cooling | 77 | 2 |
| Vehicle Speed Control | 60 | 4 |
| Steering | 49 | 1 |
| Air Bags | 29 | 2 |
| Service Brakes | 30 | 0 |
Symptoms owners describe
| Stalling | 262 | 0 |
| Loss of power | 79 | 0 |
| Check engine light | 65 | 0 |
| Won’t start | 44 | 0 |
| Hesitation / surging | 23 | 0 |
| Electrical failures | 15 | 0 |
| Steering problems | 14 | 0 |
| Vibration / shaking | 13 | 0 |
2007 Jeep Grand Cherokee
2007 Mercury Mariner
Compare all Jeep Grand Cherokee vs Mercury Mariner 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.