FaultScore

Mercedes Benz M Class vs Lexus GX

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 Mercedes Benz M Class Lexus GX
Complaints on file 93 232
Model years covered 1998–2008 2003–2026
Worst model year 2003 2014
Best model year 1999 2006
Crashes reported 6 17
Fires reported 3 1
Injuries reported 6 8
Deaths reported 0 0
Most complained-about part Steering Body & Structure
Share of complaints involving harm 16.1% 11.2%

Mercedes Benz M Class by year

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

What breaks

Steering 19 20.4%
Engine & Cooling 11 11.8%
Electrical System 11 11.8%
Brakes 10 10.8%
Stability & Traction Control 8 8.6%
Transmission & Drivetrain 7 7.5%
Fuel & Propulsion 5 5.4%
Seat Belts 4 4.3%

Lexus GX by year

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

What breaks

Body & Structure 35 15.1%
Airbags 19 8.2%
Electrical System 18 7.8%
Engine & Cooling 16 6.9%
Brakes 16 6.9%
Suspension 16 6.9%
Transmission & Drivetrain 12 5.2%