Monaco Coach Diplomat vs RAM 5500

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 Monaco Coach Diplomat RAM 5500
Complaints on file 86 215
Model years covered 1998–2011 2013–2025
Worst model year 2000 2018
Best model year 2004 2015
Crashes reported 4 15
Fires reported 6 15
Injuries reported 1 8
Deaths reported 3 0
Most complained-about part Equipment & Accessories Transmission & Drivetrain
Share of complaints involving harm 16.3% 17.7%

Monaco Coach Diplomat by year

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

What breaks

Equipment & Accessories 16 18.6%
Body & Structure 15 17.4%
Electrical System 13 15.1%
Windows, Mirrors & Wipers 12 14.0%
Brakes 6 7.0%
Fuel & Propulsion 5 5.8%
Tires 5 5.8%
Other & Unspecified 4 4.7%

RAM 5500 by year

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

What breaks

Brakes 42 19.5%
Wheels 20 9.3%
Engine & Cooling 18 8.4%
Electrical System 15 7.0%
Steering 14 6.5%
Fuel & Propulsion 13 6.0%
Suspension 11 5.1%