FaultScore

Volvo EX90 vs Mercury Mariner Hybrid

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 Volvo EX90 Mercury Mariner Hybrid
Complaints on file 128 314
Model years covered 2025–2026 2006–2012
Worst model year 2008
Best model year 2010
Crashes reported 4 8
Fires reported 0 0
Injuries reported 3 1
Deaths reported 0 0
Most complained-about part Electrical System Engine & Cooling
Share of complaints involving harm 5.5% 2.9%

Volvo EX90 by year

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

What breaks

Driver Assist & Collision Avoidance 21 16.4%
Other & Unspecified 18 14.1%
Fuel & Propulsion 13 10.2%
Acceleration & Cruise Control 9 7.0%
Transmission & Drivetrain 8 6.3%
Brakes 7 5.5%
Seat Belts 4 3.1%

Mercury Mariner Hybrid by year

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

What breaks

Engine & Cooling 69 22.0%
Brakes 62 19.7%
Steering 41 13.1%
Acceleration & Cruise Control 20 6.4%
Other & Unspecified 9 2.9%