Mercedes Benz EQS 580 vs Hyundai Ioniq 9
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 EQS 580 | Hyundai Ioniq 9 |
|---|---|---|
| Complaints on file | 26 | 64 |
| Model years covered | 2022–2024 | 2026–2026 |
| Worst model year | — | — |
| Best model year | — | — |
| Crashes reported | 3 | 0 |
| Fires reported | 1 | 0 |
| Injuries reported | 6 | 5 |
| Deaths reported | 0 | 0 |
| Most complained-about part | Driver Assist & Collision Avoidance | Electrical System |
| Share of complaints involving harm | 38.5% | 7.8% |
Mercedes Benz EQS 580 by year
What breaks
Driver Assist & Collision Avoidance
11
42.3%
Brakes
4
15.4%
Other & Unspecified
4
15.4%
Electrical System
2
7.7%
Seat Belts
2
7.7%
Transmission & Drivetrain
1
3.8%
Windows, Mirrors & Wipers
1
3.8%
Wheels
1
3.8%
Hyundai Ioniq 9 by year
26
What breaks
Electrical System
20
31.3%
Driver Assist & Collision Avoidance
11
17.2%
Fuel & Propulsion
9
14.1%
Transmission & Drivetrain
6
9.4%
Acceleration & Cruise Control
4
6.3%
Other & Unspecified
4
6.3%
Engine & Cooling
2
3.1%
Seats
2
3.1%