2021 Hyundai Sonata Hybrid problems
NHTSA has received 74 complaints about the 2021 Hyundai Sonata Hybrid, and 35% of them involve electrical system. After that come engine (32%) and forward collision avoidance (7%).
At a glance
- Complaints
- 74 filed with NHTSA
- Most reported
- Electrical system 35% of complaints
- Crashes and fires
- 3 and 0
- Injuries and deaths
- 6 and 0
Source: NHTSA owner complaints
Where the complaints are
Share of this model year's complaints by the part of the car involved. One complaint can name more than one part, so the shares can add up to more than 100%.
What the data shows
Safety-related details: 3 complaints mention a crash; 6 injuries reported.
Looking only at complaints filed within five years of the model year (so older and newer years are comparable), the 2021 ranks 4th most-complained-about out of 9 model years of the Hyundai Sonata Hybrid with enough data (74 complaints in that window).
What owners wrote
A few complaints as filed, shortened and with personal details removed. The first ones are among the most serious reports for this model year; the rest are typical.
The forward collision warning, automatic emergency braking and adaptive cruise control failed as the first 2 activated when there were no oncoming collisions in front of me and the nearest cars around me were 1/4 of a mile away. The cruise control failed as it turned back on after the vehicle veered off the highway and into the rest stop.
The contact owns a 2021 Hyundai Sonata. The contact stated that while driving at an undisclosed speed, he received an alert indicating that the engine was overheating and to pull over. No warning lights were illuminated. The contact then veered to the side of the road and waited approximately 15 minutes before restarting the vehicle. The vehicle was then taken to the dealer where the vehicle remained. The vehicle was diagnosed, and it was determined that the engine coolant bypass valve needed to be replaced.
The contact owns a 2021 Hyundai Sonata Hybrid. The contact stated that the key fob was inoperable and after using the key to manually open the door. The contact stated that the vehicle failed to start while pressing the START/STOP button. The vehicle was towed to the local dealer, but the cause of the failure was not determined. The contact was advised that when the failure occurred, to start the vehicle, the battery reset button should be pressed before pressing the START/STOP button.