2025 Hyundai Tucson Hybrid electrical problems

Filed Nov 7, 2026 · Electrical · NY

I am reporting a major safety hazard on my 2025 Hyundai Tucson Hybrid Limited. The car has a bad wiring connection behind the dashboard that causes the screens to black out and critical safety systems to fail. I have taken it to the dealer 5 times, but they haven't fixed the hardware issue. Over the last week, the problem got much worse. On Monday, November 2, 2026, the main navigation screen went completely black while driving. Then, on Thursday, November 5, 2026, as soon as I started the car and before I even began driving, the computer network crashed. My dashboard immediately showed a "Check Driver Assistance" warning, and the ABS (Anti-lock Braking System) light, traction control light, and master warning triangle all turned on at the same time. All of my automatic safety brakes and cameras shut off completely right at startup. Driving a brand-new car where the speedometer goes black and the emergency brakes turn off is terrifying and life-threatening. The dealer is refusing to replace the bad wiring harness.

Filed Nov 6, 2026 · Electrical, Lights · WI

While driving my 2025 Hyundai Tucson Hybrid on [XXX] toward [XXX] at approximately 70 mph on XXX, multiple safety system lights illuminated on the dashboard, and my turn signals stopped functioning. The dashboard turn signal indicators and audible clicking were not working. After shutting off and restarting the vehicle, the malfunction resolved. I brought the vehicle to Zimbrick Hyundai East [XXX] on XXX, for evaluation. The dealership identified eight historical diagnostic trouble codes across six vehicle systems, including multiple electronic communication errors, but no active codes. Following a 16 mile test drive, the technician was unable to reproduce the malfunction or identify its cause. No corrective repairs were performed. The vehicle has approximately 15,600 miles at the time of inspection. I am concerned this intermittent malfunction could recur while driving, preventing me from safely signaling turns or lane changes. The cause remains unidentified and unresolved. The attached photograph, taken XXX at approximately 8:42AM, shows one of several warning messages I reviewed during the incident. Multiple other safety system warning in indicators remained illuminated. I stopped reviewing them because doing so while driving was unsafe. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Oct 25, 2026 · Driver assistance, Electrical · MN

Display cluster recurring issue even after repair and software update. All warning lights on while at highway speed. Initial event in July 2025 - repair done. Coincidental with recall notice related to cluster display. Blank screen/cluster display while driving on July 30, 2026 - with eventual repair within same week. But, in October 2026 - all warning lights re-appeared intermittently from just flashing to steady display of at least 2 mins. Service date (third of same issue- excluding during regular maintenance where recall update done) already scheduled 10/26/26 at dealership.

Filed Oct 22, 2026 · Driver assistance, Electrical · FL

Main LED screen black/green out. Back up camera safety functions failed & suffered recurring failure after being serviced 3x by the dealer. Corporate now been put on notice to discuss tesolution options. Thank god (so far) vehicle has not been involved in any accidents.

Filed Oct 12, 2026 · Electrical · MO · crash

I was in an accident back in March that I think is related to a recall announced in June. I asked that Hyundai refund my insurance deductible and they rejected my claim. I'm hoping regulatory support will be able to help.

Filed Oct 1, 2026 · Electrical · MD

Dashboard vehicle information screen displays "NO SIGNAL" 100% of the time, The information screen is supposed to show speedometer, tach, gas and other details of the condition of the vehicle. This has been continuous for the past 3 days, before that has happened repeatedly before resetting itself. Safety recall 26V400000 DID NOT correct the problem

Filed Sep 15, 2026 · Driver assistance, Electrical · VA

On 9/13/26, while driving, all the instrument warning lights came on and stayed on after the car was shut off and back on a few times. Running diagnostics on the car showed everything was working ok. On 9/14/26, The warning lights were off in the morning. On 9/15 while driving, making a left turn, the instrument panel went completely blank, with the exception of the radio part of the screen. My turn signal, speed, fuel, blind spot indicator, etc. nothing showed up. Video is available of the incident.

Filed Sep 3, 2026 · Electrical · 5,987 miles · MN

The contact owns a 2025 Hyundai Tucson. The vehicle was repaired under the federal safety agency Campaign Number: 26V400000 (ELECTRICAL SYSTEM); however, the contact stated that the failure occurred. The contact stated that the instrument panel flickered and went blank and repeatedly turned on and off. No warning lights were illuminated. The local dealer was contacted; however, the vehicle was not diagnosed. The contact was informed that the VIN was not under recall. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 5,987.

Filed Aug 28, 2026 · Driver assistance, Electrical · 9,419 miles · NH

The contact owns a 2025 Hyundai Tucson. The contact stated that the vehicle was included in the federal safety agency Campaign Numbers: 26V400000 (Electrical System) and 26V316000 (Forward Collision Avoidance); however, approximately 15 minutes after the software updates were completed, the lane keep assist failed intermittently, causing the vehicle to veer out of the intended lane. No warning lights illuminated. The vehicle was returned to the dealer; however, the vehicle was not diagnosed or repaired. The manufacturer was notified of the failure, and a case was opened. The failure mileage was approximately 9,419.

Filed Aug 28, 2026 · Driver assistance, Electrical · MA

The parking cameras on this vehicle have been intermittently failing for almost a year, most frequently when reversing the vehicle, but also when parking in a garage (forward camera). This puts me and any cars and pedestrians around me at risk every time it fails when I am attempting to reverse out of a parking space. The car's rear window is not designed for maximum visibility of surroundings. I have taken the car to the dealer 3 times to repair this defect, including one visit in which they replaced the camera. The symptom of the defect is that a green screen appears where the camera image should be and says it's not working, when I put the car into reverse or pull into a parking space.