2020 Hyundai Sonata problems and complaints
Owners have filed 180 complaints with NHTSA about the 2020 Hyundai Sonata. The most-reported areas: Fuel/Propulsion System (47), Electrical System (40), Engine (32).
Key takeaways
- 180 owner complaints on file with NHTSA.
- 5 involve a crash, 1 a fire, 4 reported injuries.
- Complaints are unverified owner reports; recalls are confirmed defects.
| Component | Complaints | Share |
|---|---|---|
| Fuel/Propulsion System | 47 | 26% |
| Electrical System | 40 | 22% |
| Engine | 32 | 18% |
| Unknown Or Other | 28 | 16% |
| Power Train | 24 | 13% |
| Structure | 17 | 9% |
| Seats | 16 | 9% |
| Forward Collision Avoidance | 12 | 7% |
| Fuel System | 12 | 7% |
| Gasoline | 12 | 7% |
| Air Bags | 7 | 4% |
| Steering | 7 | 4% |
One complaint can name several components, so shares add up to more than 100%.
| Version | Overall | Front | Side | Rollover |
|---|---|---|---|---|
| 2020 Hyundai Sonata 4 DR FWD | 5/5 | 4/5 | 5/5 | 5/5 |
Latest complaints, as filed
Owner-written and unverified by NHTSA.
Service Brakes,engine,fuel/Propulsion System - filed 2026-10-15
Vehicle experienced intermittent, severe powertrain defect resulting in a critical safety hazard. Between 30K and 36K miles, the vehicle underwent 3 violent highway deceleration episodes. During these events, the engine began shaking, escalating to violent shaking; with deceleration and coming to a stop, it would sha...
Structure,service Brakes,fuel/Propulsion System - filed 2026-10-06
Fuel system recall (NHTSA 25V796; Hyundai 286/23HYZ2 "Fuel Tank Expansion") on a 2020 Hyundai Sonata, plus the fuel-tank heat shield and rear floor pan area. On 4/21/2026 (110,423 mi.) a Hyundai dealer's recall test FAILED; no warning lamps or symptoms beforehand. The repair order says Hyundai "is declining the repair...
Electrical System - filed 2026-09-07
A/C blower motor fan would stop working. Happened twice within less than a year apart. Upon further inspection, multi fuse wiring overheated and melted, ruining fuse and making A/C stop working during 100 temperatures outside. Apparently this is a well known issue with this make and model Sonata. Electrical failure.
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More for the 2020 Hyundai Sonata
Complaints are reports filed by owners with the National Highway Traffic Safety Administration. NHTSA publishes them without verifying them, and counts rise with how many cars were sold, so compare years of the same model rather than different models. Crash ratings are NHTSA's own 5-Star Safety Ratings results.