FaultScore

Infiniti M45 vs RAM Promaster

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 Infiniti M45 RAM Promaster
Complaints on file 372 915
Model years covered 2003–2010 2014–2026
Worst model year 2003 2014
Best model year 2007 2016
Crashes reported 4 31
Fires reported 0 25
Injuries reported 5 3
Deaths reported 0 0
Most complained-about part Fuel & Propulsion Engine & Cooling
Share of complaints involving harm 2.4% 6.4%

Infiniti M45 by year

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

What breaks

Fuel & Propulsion 114 30.6%
Engine & Cooling 75 20.2%
Airbags 28 7.5%
Seats 26 7.0%
Steering 25 6.7%
Acceleration & Cruise Control 12 3.2%
Transmission & Drivetrain 9 2.4%

RAM Promaster 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 159 17.4%
Electrical System 145 15.8%
Steering 69 7.5%
Brakes 64 7.0%
Body & Structure 21 2.3%