2012 Kia Optima vs 2012 Lexus ES350
Complaints, recalls, TSBs, investigations and safety ratings side by side, from official federal data. Last verified Aug 7, 2026. Raw complaint counts are not adjusted for sales volume.
| Metric | 2012 Kia Optima | 2012 Lexus ES350 |
|---|---|---|
| NHTSA complaints | 919 | 89 |
| Recall campaigns | 5 | 3 |
| Service bulletins (TSBs) | 241 | 208 |
| Investigations | 7 | 1 |
| Crash reports | 25 | 3 |
| Fire reports | 77 | 2 |
| NCAP overall rating | 5/5 | — |
| EPA MPG (combined) | 26–36 | 22 |
| Median reported incident mileage | 82,120 mi | — |
Reported problems side by side
| Component | Kia Optima | Lexus ES350 |
|---|---|---|
| Engine | 398 | 0 |
| Steering | 188 | 1 |
| Air Bags | 48 | 77 |
| Electrical System | 122 | 2 |
| Power Train | 54 | 0 |
| Service Brakes | 52 | 1 |
| Fuel/propulsion System | 42 | 0 |
| Vehicle Speed Control | 40 | 2 |
Symptoms owners describe
| Stalling | 110 | 0 |
| Clunking / rattling | 74 | 0 |
| Check engine light | 73 | 0 |
| Loss of power | 49 | 0 |
| Vibration / shaking | 32 | 0 |
| Hesitation / surging | 22 | 0 |
| Airbag warning light | 19 | 0 |
| Won’t start | 14 | 0 |
2012 Kia Optima
2012 Lexus ES350
Compare all Kia Optima vs Lexus ES350 years →
Method. Complaints are unique NHTSA reports. A vehicle that sold more units will naturally accumulate more complaints — use shares and read the underlying reports before drawing conclusions.