2025 Hyundai Tucson electrical system problems

“I was driving home tonight and while driving the car lost all power on the full screen and headlights. This is the second report of the same problem. It was like a blackout at two o clock in the morning. I couldn’t see the speed and the lights went out. It did come back on in immediately.”

“On July 17, I took my vehicle to Hyundai of Venice due to a safety recall of the automated emergency brake, the dealership told me that they had fixed the recall. On October 10 when I returned for service, I again notified them that the safety features such as the automated emergency brake and the Forward collision warning were not working. They ignored me again. Then on October 21, 2026, I was driving my mother to run an errand before her doctors appointment as I was pulling into a parking spot going no more than 3 mph. The safety features were still not working and I scratched the vehicle on the left of me which was empty. I then stopped the car, got out and took pictures of the license plate and of the scratch, and then looked at my front bumper and saw that I was also scratched, my mother, and I went into the supermarket to speak to the manager and attempt to call for the police, but then my mother noticed their brake lights were on and people were in the car so we hurried out to notify them that we had scratched their car by accident, I gave my insurance information and my mother gave her telephone number and after her doctors appointment, I contacted my…”

“When shifting into reserve, a green screen appears. I have to put my car back in to park and then reverse to get my back up camera to start working again. It doesn’t happen all the time but since my last software update, it has been happening more frequently.”

“The contact owns a 2025 Hyundai Tucson. The contact stated that while depressing the horn pad on the steering wheel, the horn failed to operate as intended. The vehicle was taken to a local dealer, where it was diagnosed and confirmed that the failure was related with Technical Service Bulletin: 26-BE-003H. The manufacturer was made aware of the failure. The failure mileage was approximately 24,022.”

“I was driving home tonight after dark. The car has been running just fine and all the sudden all the electrical on the car shut off, even the headlights and then everything turned back on.”

“Shifter malfunction, service immediately warning comes on. The car will not shift out of park and cannot be driven. It has happened 4 times now. No one has been hurt, but I have been stranded multiple times. The dealer couldn’t reproduce the issue the first time I brought it in, but they did second time I brought it in for the same issue. They replaced a part that was supposedly faulty, but the issue persists after the replacement. CAUSE : 42950R00 SHIFT BY WIRE (SBW) CONTROL UNIT ASSY 6064 1 42951-2D085 SBW CONTROL UNIT (N/ C) (N/C) FC: PART#: 42951-2D085 COUNT: 1 CLAIM TYPE: WAR There were no prior warnings. The error message has come on while I am mid driving on the highway, back roads or even just starting my car in the morning. In most cases I need to wait for the issue to just “self resolve”.”