Powertrain complaints and recalls from NHTSA
Summary
The 2020 Hyundai Sonata has 21 NHTSA powertrain complaints and 0 powertrain-related recalls.
21
Complaints
0
Recalls
0
Injuries Reported
Data source: National Highway Traffic Safety Administration (NHTSA) · Last updated April 9, 2026
| Date ↓ | Component | Summary |
|---|---|---|
| Jun 30, 2025 | POWER TRAIN,ENGINE | The contact owns a 2020 Hyundai Sonata. The contact stated that the vehicle hesitated while depressi... |
| Apr 21, 2025 | POWER TRAIN,ELECTRICAL SYSTEM,FORWARD COLLISION AVOIDANCE | My 2020 Hyundai Sonata has a recurring defect in its engine or transmission, causing sudden decelera... |
| Apr 6, 2025 | POWER TRAIN,ELECTRICAL SYSTEM,FORWARD COLLISION AVOIDANCE | My 2020 Hyundai Sonata has a recurring and dangerous defect involving sudden deceleration while driv... |
| Feb 27, 2025 | POWER TRAIN | My certified pre-owned 2020 Hyundai Sonata has experienced the same critical transmission failure th... |
| Feb 26, 2025 | POWER TRAIN,ELECTRICAL SYSTEM,FORWARD COLLISION AVOIDANCE | My 2020 Hyundai Sonata has a recurring and dangerous defect involving sudden deceleration while driv... |
| Nov 22, 2024 | POWER TRAIN,ELECTRICAL SYSTEM,UNKNOWN OR OTHER | I believe the transmission malfunctioned as I reached 60 MPH / 4000 RPMs on the highway when it sudd... |
| Nov 13, 2024 | POWER TRAIN,VEHICLE SPEED CONTROL,FUEL/PROPULSION SYSTEM | On or about November 13, 2024 our Hyundai Sonata 2020 gas tank almost exploded. We drove our vehicle... |
| Jun 25, 2024 | POWER TRAIN,STRUCTURE,FUEL/PROPULSION SYSTEM | I was on my way back home from Alexandria LA on [XXX] when I heard like the sound of an blow out tir... |
| May 25, 2024 | POWER TRAIN,ELECTRICAL SYSTEM,ENGINE | Vechile shut down completely on the highway, engine's been replaced twice, Catalytic converter, Turb... |
| Mar 18, 2024 | POWER TRAIN | The contact owns a 2020 Hyundai Sonata. The contact stated that while driving at an undisclosed spee... |
| Jul 14, 2023 | POWER TRAIN,ENGINE | Engine leaks oil. I went to the dealer and they blamed the other Hyundai dealer saying they stripped... |
| Aug 18, 2022 | POWER TRAIN,ELECTRICAL SYSTEM | The contact owns a 2020 Hyundai Sonata. The contact stated that while her husband was driving 75 MPH... |
| Aug 4, 2022 | POWER TRAIN,VEHICLE SPEED CONTROL | When accelerating hard (pedal to the floor) from approximately 55 mph, the transmission may not down... |
| Mar 24, 2022 | POWER TRAIN | Car is 20 months old and in that period the car has experienced on at least 3 occasions a problem wi... |
| Jul 26, 2021 | POWER TRAIN | 1.TRANSMISSION DOES NOT FUNCTION PROPERLY AT ALL TIMES. IT SLIPS FROM TIME TO TIME UPON ACCELERATION... |
| Jun 20, 2021 | POWER TRAIN | The transmission since we got the vehicle has had random hard shifts. The software updates seemed to... |
| Mar 20, 2021 | POWER TRAIN,ENGINE | TL* THE CONTACT OWNS A 2020 HYUNDAI SONATA. THE CONTACT STATED WHILE DRIVING 35 MPH AND ENTERING THE... |
| Sep 26, 2020 | POWER TRAIN,ELECTRICAL SYSTEM | FOLLOWING A FIRMWARE UPDATE TO THE OBC FOR A RECALL, THE VEHICLE TRANSMISSION NOW HAS A SEVERE DELAY... |
| Jul 13, 2020 | POWER TRAIN,ENGINE | VEHICLE ABRUPTLY STOPPED IN A TRAFFIC SIGNAL WITHOUT GIVING ANY INDICATIONS WHAT SO EVER. WHEN TRIE... |
| Jul 7, 2020 | POWER TRAIN,ENGINE | VEHICLE ROUGH IDLED & EVENTUALLY SHUDDERED TO A STOP. THIS HAPPENED FOUR TIMES WHILE IN GEAR AND IDL... |