GMC Hummer EV SUV vs Mercedes Benz GL550
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 | GMC Hummer EV SUV | Mercedes Benz GL550 |
|---|---|---|
| Complaints on file | 28 | 70 |
| Model years covered | 2024–2025 | 2010–2016 |
| Worst model year | — | 2013 |
| Best model year | — | 2011 |
| Crashes reported | 3 | 3 |
| Fires reported | 0 | 3 |
| Injuries reported | 0 | 7 |
| Deaths reported | 0 | 0 |
| Most complained-about part | Electrical System | Airbags |
| Share of complaints involving harm | 10.7% | 18.6% |
GMC Hummer EV SUV by year
What breaks
Electrical System
6
21.4%
Steering
4
14.3%
Driver Assist & Collision Avoidance
4
14.3%
Brakes
3
10.7%
Suspension
2
7.1%
Other & Unspecified
2
7.1%
Engine & Cooling
1
3.6%
Transmission & Drivetrain
1
3.6%
Mercedes Benz GL550 by year
What breaks
Airbags
20
28.6%
Engine & Cooling
10
14.3%
Electrical System
9
12.9%
Other & Unspecified
7
10.0%
Transmission & Drivetrain
4
5.7%
Steering
4
5.7%
Brakes
3
4.3%
Body & Structure
2
2.9%