KIA RIO vs Nissan Frontier
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 | KIA RIO | Nissan Frontier |
|---|---|---|
| Complaints on file | 1,816 | 4,485 |
| Model years covered | 2000–2023 | 1998–2026 |
| Worst model year | 2002 | 2022 |
| Best model year | 2023 | 2024 |
| Crashes reported | 229 | 219 |
| Fires reported | 149 | 62 |
| Injuries reported | 163 | 128 |
| Deaths reported | 8 | 10 |
| Most complained-about part | Engine & Cooling | Transmission & Drivetrain |
| Share of complaints involving harm | 30.2% | 9.3% |
KIA RIO by year
What breaks
Engine & Cooling
399
22.0%
Airbags
274
15.1%
Brakes
184
10.1%
Electrical System
159
8.8%
Other & Unspecified
130
7.2%
Fuel & Propulsion
102
5.6%
Transmission & Drivetrain
98
5.4%
Seat Belts
64
3.5%
Nissan Frontier by year
What breaks
Transmission & Drivetrain
997
22.2%
Fuel & Propulsion
828
18.5%
Engine & Cooling
675
15.1%
Electrical System
307
6.8%
Airbags
300
6.7%
Brakes
225
5.0%
Other & Unspecified
175
3.9%
Acceleration & Cruise Control
125
2.8%