NHTSA Complaint #11512687 — 2013 HYUNDAI SONATA

The electrical system of the vehicle malfunctions regularly. When the headlights are on, the brake lights are stuck on and do not turn off, nor do they properly "activate" when braking. If the headlights are off, they work just fine. If the headlights are on, the entire dashboard lighting is prone to going haywire. On several occasions with the headlights on, the electrical system has malfunctioned and turned off all lights, inside and outside. They will not turn back on unless I turn the headlights off and back on. Turning on the high beams has made the lighting malfunction and the entire vehicle will decelerate, even when pressing on the gas. I will gladly allow my vehicle for inspection upon request. This is clearly a hazard to both myself and other vehicles on the road, especially at night. Not only is the lack of functional brake lights a hazard, but so is having rapidly flashing lights on the dashboard to myself as a driver. Moreover, the headlights randomly turning off at night is extremely dangerous, as is the random deceleration. Upon looking into it to see if I could find an answer, I learned it's a common problem with 2011-2014 Hyundai Sonatas and to see that so many have this issue but nothing has been done to correct it is shocking. My local dealership did inspect my car upon an engine seizure a few years ago, but all they reported was an issue with the passenger side brake light bracket and bulb (another common issue it seems). I have never received any sort of warning lamp or message, aside from the traction light randomly coming on from time to time for no reason.