FaultScore

Mercury Mountaineer vs Jeep Compass

Both cars' complete complaint records, side by side.

Read the totals carefully. NHTSA publishes no sales figures, so the car that sold more collects more complaints regardless of quality. The rows worth weighing are the proportions — the share of complaints that involved harm, and which part dominates.

Measure Mercury Mountaineer Jeep Compass
Complaints on file 2,646 6,123
Model years covered 1996–2010 2007–2026
Worst model year 1997 2018
Best model year 2010 2008
Crashes reported 191 248
Fires reported 91 76
Injuries reported 148 138
Deaths reported 5 2
Most complained-about part Transmission & Drivetrain Engine & Cooling
Share of complaints involving harm 16.4% 7.6%

Mercury Mountaineer by year

Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded

What breaks

Tires 364 13.8%
Body & Structure 298 11.3%
Engine & Cooling 217 8.2%
Brakes 142 5.4%
Seats 127 4.8%

Jeep Compass by year

Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded

What breaks