2020 Hyundai Sonata problems and complaints
Owners have filed 178 complaints with NHTSA about the 2020 Hyundai Sonata. The most-reported areas: Fuel/Propulsion System (45), Electrical System (40), Engine (31).
Key takeaways
- 178 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 | 45 | 25% |
| Electrical System | 40 | 22% |
| Engine | 31 | 17% |
| Unknown Or Other | 28 | 16% |
| Power Train | 24 | 13% |
| Seats | 16 | 9% |
| Structure | 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.
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.
Power Train,electrical System - filed 2026-09-03
I am submitting a safety complaint regarding a recurring, unresolved electrical defect in my 2020 Hyundai Sonata SEL. The vehicle fails to recognize when the ignition is switched off, leaving core vehicle systems active and causing severe parasitic battery drain that leaves the car immobilized. Description of the Pro...
Engine - filed 2026-09-03
The A/C evaporator core and the core seal needs replacing on 2020 Hyundai Sonata. Car is 6 years old. I already have a confirmed diagnosis with a PPM refrigerant leak tester at the condensate drain line The diagnosis is 100% confirmed. The evaporator is leaking heavily—we pulled 274 PPM at the drain tube and 177 PPM in...
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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.