Toyota Prius Prime vs KIA EV9
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 | Toyota Prius Prime | KIA EV9 |
|---|---|---|
| Complaints on file | 165 | 412 |
| Model years covered | 2017–2024 | 2024–2026 |
| Worst model year | 2017 | 2024 |
| Best model year | 2019 | 2025 |
| Crashes reported | 38 | 5 |
| Fires reported | 0 | 2 |
| Injuries reported | 12 | 3 |
| Deaths reported | 0 | 0 |
| Most complained-about part | Electrical System | Electrical System |
| Share of complaints involving harm | 30.3% | 2.4% |
Toyota Prius Prime by year
What breaks
Electrical System
24
14.5%
Windows, Mirrors & Wipers
20
12.1%
Transmission & Drivetrain
13
7.9%
Driver Assist & Collision Avoidance
13
7.9%
Other & Unspecified
13
7.9%
Brakes
12
7.3%
Acceleration & Cruise Control
8
4.8%
Fuel & Propulsion
8
4.8%
KIA EV9 by year
What breaks
Electrical System
119
28.9%
Driver Assist & Collision Avoidance
61
14.8%
Other & Unspecified
45
10.9%
Suspension
22
5.3%
Wheels
21
5.1%
Steering
20
4.9%
Acceleration & Cruise Control
20
4.9%
Windows, Mirrors & Wipers
15
3.6%