Vehicle Data Hub

2020 Hyundai Sonata electrical system problems

Owners reported electrical system problems in 40 complaints for the 2020 Hyundai Sonata, 14% of the complaints on file. It is the 2nd most reported problem area for this model year.

At a glance

Complaints
40 14% of this year's complaints
Crashes and fires
2 and 0
Injuries and deaths
0 and 0

Source: NHTSA owner complaints

What the data shows

These complaints mention 2 crashes.

What owners wrote

While stopping at a major highway intersection on [XXX] for a red light vehicle stalls and will not start back up while everyone else continues at a 55 mph mile an hour passing me on each side! This happened more than 6 times . While you’re stuck in intersection,you have to keep trying to start the car eventually it will start . Apparently it is EGR valve and is a very common problem.

October 2025 Crash

Tl* the contact owns a 2020 hyundai sonata. The contact stated that while driving at approximately 55 MPH, the vehicle shifted into safe mode and lost motive power. The vehicle was taken to st. Charles automotive located at 5601 veterans memorial pkwy, st peters, mo 63376, (636)441-4481 but was not diagnosed nor repaired. The manufacturer was not contacted or informed of the failure. The approximate failure mileage was 1,500.

Reported at 1,500 miles, January 2020

Other problems reported for the 2020 Hyundai Sonata

Electrical system problems in other years

Electrical system problems across all Hyundai models