FaultScore

Mercedes Benz GLS 450 4MATIC vs Winnebago Winnebago

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 GLS 450 4MATIC Winnebago Winnebago
Complaints on file 77 192
Model years covered 2022–2025 1973–2002
Worst model year 2022 1994
Best model year 2023 1997
Crashes reported 18 3
Fires reported 1 2
Injuries reported 4 3
Deaths reported 0 0
Most complained-about part Driver Assist & Collision Avoidance Tires
Share of complaints involving harm 29.9% 4.2%

Mercedes Benz GLS 450 4MATIC 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 17 22.1%
Electrical System 10 13.0%
Other & Unspecified 10 13.0%
Engine & Cooling 9 11.7%
Brakes 7 9.1%
Transmission & Drivetrain 4 5.2%
Wheels 4 5.2%
Acceleration & Cruise Control 3 3.9%

Winnebago Winnebago by year

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

What breaks

Tires 31 16.1%
Brakes 30 15.6%
Engine & Cooling 20 10.4%
Suspension 14 7.3%
Windows, Mirrors & Wipers 13 6.8%
Equipment & Accessories 13 6.8%
Electrical System 11 5.7%
Steering 10 5.2%