2011 Jeep Grand Cherokee vs 2011 Mercury Mariner
Complaints, recalls, TSBs, investigations and safety ratings side by side, from official federal data. Last verified Aug 7, 2026. Raw complaint counts are not adjusted for sales volume.
| Metric | 2011 Jeep Grand Cherokee | 2011 Mercury Mariner |
|---|---|---|
| NHTSA complaints | 1,639 | 87 |
| Recall campaigns | 6 | 2 |
| Service bulletins (TSBs) | 195 | 27 |
| Investigations | 6 | 3 |
| Crash reports | 53 | 2 |
| Fire reports | 61 | 0 |
| NCAP overall rating | 4/5 | — |
| EPA MPG (combined) | 15–18 | 20–32 |
| Median reported incident mileage | 64,000 mi | 53,000 mi |
Reported problems side by side
| Component | Jeep Grand Cherokee | Mercury Mariner |
|---|---|---|
| Electrical System | 779 | 6 |
| Engine | 343 | 11 |
| Service Brakes | 322 | 0 |
| Fuel/propulsion System | 247 | 22 |
| Power Train | 90 | 24 |
| Steering | 86 | 20 |
| Air Bags | 60 | 2 |
| Vehicle Speed Control | 37 | 15 |
Symptoms owners describe
| Stalling | 412 | 15 |
| Won’t start | 121 | 0 |
| Loss of power | 56 | 6 |
| Check engine light | 55 | 7 |
| Brake problems | 32 | 0 |
| Hesitation / surging | 27 | 6 |
| Rust / corrosion | 23 | 0 |
| Electrical failures | 20 | 0 |
2011 Jeep Grand Cherokee
2011 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.