2020 Hyundai Sonata vs 2021 Hyundai Sonata
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 | 2020 Hyundai Sonata | 2021 Hyundai Sonata |
|---|---|---|
| NHTSA complaints | 170 | 125 |
| Recall campaigns | 4 | 4 |
| Service bulletins (TSBs) | 99 | 88 |
| Investigations | 1 | 1 |
| Crash reports | 4 | 7 |
| Fire reports | 1 | 0 |
| NCAP overall rating | — | — |
| EPA MPG (combined) | 31–47 | 27–47 |
| Median reported incident mileage | 9,998 mi | 35,000 mi |
Reported problems side by side
| Component | Hyundai Sonata | Hyundai Sonata |
|---|---|---|
| Engine | 30 | 34 |
| Fuel/propulsion System | 45 | 18 |
| Electrical System | 35 | 16 |
| Power Train | 23 | 22 |
| Fuel System, Gasoline | 12 | 11 |
| Structure | 16 | 4 |
| Forward Collision Avoidance | 11 | 8 |
| Seats | 15 | 2 |
Symptoms owners describe
| Check engine light | 27 | 12 |
| Stalling | 12 | 0 |
| Hesitation / surging | 8 | 0 |
| Electrical failures | 6 | 0 |
| Vibration / shaking | 6 | 5 |
| Won’t start | 5 | 0 |
| Loss of power | 0 | 9 |
| Overheating | 0 | 6 |
2020 Hyundai Sonata
2021 Hyundai Sonata
Compare all Hyundai Sonata vs Hyundai Sonata 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.