2025 Hyundai Tucson Electrical System Problems

The display screen for the instrument cluster goes off for 3 seconds every 1 or 2 minutes. It leaves me without a speedometer, side safety cameras, or vehicle information.

Vehicle has failed to start with NO WARNING LIGHTS (completely blank infotainment screen) and no sounds when start button is pressed. Vehicle also completely shuts down when stopping in traffic and takes several attempts at restarting before the vehicle actually starts and able to move. This is a SEVERE LIFE THREATENING OR SERIOS INJURY SITUATION that Hyundai seems to have no interest in solving. Incidents have been video when safety is not an issue.

The contact owns a 2025 Hyundai Tucson. The contact stated that the horn was inoperable. While another driver was reversing, the contact attempted to use the horn to alert the driver, but the horn failed to operate as intended. There were no warning lights illuminated. The vehicle was taken to a local dealer, where it was confirmed that the horn was not functioning properly. The dealer informed the contact that the necessary parts to repair the vehicle were on backorder. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 8,400.

WHEN OPERATING WILL SCREEN GOES BLANK ABD INDICATED “LOST SIGNAL” DURING THIS TIME NO SPEED INDICATION. ON HYUNDAI FORUM THERE ARE MANY WHO ARE HAVING SAME PROBLEM.

The car keeps randomly dying. Completely loses power even when driving

Vehicle dash intermittently goes out. Flickers, goes dark, or shows every warning that exists on the panel. Could be unsafe as speed, gas gage, or other warnings that provide safety are going dark. Took it to dealer in Roseville, Ca. They tried to repair it, but problem began to occur again a week later. I have a video of it, but can’t show here.

Issue Type: Intermittent Electronic System Failure / Critical Safety Hazard Description of Incident: A severe safety-related incident occurred while driving at night on 12/29/2025, at approximately 5:48 pm. Under fully dark winter conditions in MA, while the vehicle was in motion with the headlights set to AUTO, the following events occurred: Total System Blackout: All interior and exterior lighting systems suddenly failed simultaneously, including the digital instrument cluster, infotainment display, and backlighting for all illuminated buttons and controls. The complete failure of exterior lighting and interior displays resulted in an immediate loss of forward visibility and access to critical driving information. Duration: The blackout lasted approximately two seconds before the system appeared to reboot. Recurrence: Approximately ten seconds after the first incident, the same total blackout occurred again under identical conditions. Vehicle Status: The engine remained running throughout the incidents; however, the simultaneous loss of lighting and instrumentation created an extremely high-risk driving situation. This incident constitutes a critical safety failure. The vehicle had experienced repeated electrical system failures prior to this incident, and was previously presented to the dealer on 8/7/2025 for diagnosis and repair. The dealer was unable to determine the cause of the malfunction and failed to take appropriate corrective action to address these issues: 07/13/2025: The Auto Stop function became inactive, and the vehicle failed to accelerate properly after stopping at traffic lights, creating a hazardous driving condition. 07/14/2025: The phone failed to connect to the vehicle’s infotainment system. 07/17/2025: While reversing in a parking lot, the Parking Collision Warning system failed to detect a moving vehicle behind the car. No audible or visual warning was issued, rendering the safety feature ineffective in preventing a potential collision.

During normal winter operation with the heater in use, the center console area becomes excessively hot. I have measured surface temperatures exceeding approximately 130°F using an infrared thermometer. The affected area includes interior touch surfaces, cup holders, and a factory-installed wireless phone charging pad. The heat appears to originate from HVAC ducting routed through the center console to supply the rear seat vents. Closing the rear vents does not reduce the console temperature, indicating heat transfer through the ducting rather than airflow. The condition is most severe after a warm-soak cycle (driving to operating temperature, briefly parking, then driving again). When a phone is placed in the intended storage or wireless charging area, the device overheats and triggers thermal protection warnings. The console surfaces also become hot enough to present a potential burn risk with prolonged skin contact. These temperatures exceed recommended ambient conditions for consumer electronics and lithium-ion batteries in a normal-use interior storage and charging location. The issue was reported to a Hyundai dealership. The service department stated the heat was caused by the rear HVAC duct and considered the condition “normal.” No repair, insulation review, or corrective action was offered, and no specific temperature measurements were provided in writing. Hyundai Consumer Affairs directed me to return to the same service department, despite the concern remaining unresolved. This condition occurs during normal vehicle operation and represents a potential interior thermal safety concern.

DEC 24, 2025 I STARTED MY AND WENT A VERY SHORT DISTANCE DOWN THE ROAD, MY ENTIRE DASH DISPLAY WENT COMPLETELY BLACK. IT STAYED THIS WAY FOR ABOUT 5 TO 10 MINUTES AND I PULLED OVER AND TURND THE CAR OFF AND BACK ON, PRETTY SCARY

The dashboard and heads up display intermittently goes on and off. All warning lights are on when the dashboard comes back on. It goes off long enough to not know how fast you are going. Hyundai has this as a known issue for Limited trims of the Hyundai Tucson yet they only tell you to take it to the dealer for the vehicle to be fixed. Customers have taken their vehicle back to the dealership after the dealerships stated that the issue was fixed because the issue happens again a few days later. This is a safety issue that needs to be addressed.

The contact owns a 2025 Hyundai Tucson. The contact stated that while driving at various speeds, the instrument panel and the infotainment screen display went black. The contact stated that the failure had progressively worsened and was a daily recurring failure. The vehicle was taken to the dealer, where it was diagnosed, and it was determined that the Heads-Up Display (HUD) harness needed to be replaced. The vehicle was not yet repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 13,000.

Once entire display screen including entertainment display and dashboard display went black/ turned off while driving. It came back on within a few seconds. Once dashboard display (without entertainment) went black/ turned off while driving. Last a few seconds.

The contact owns a 2025 Hyundai Tucson. The contact stated while driving 55 MPH, the instrument panel turned black. The contact pulled over to the right side of the road, turned off and restarted the vehicle, and the vehicle operated as intended. The dealer was contacted. The vehicle was taken to the dealer, where it was diagnosed, but the diagnostic information was not provided. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 2,000.

I’ve been driving this car for nearly a year, and during that time I have observed 6+ incidents when my instrument cluster went blank and rebooted in the middle of the road while the vehicle is moving. This seems to be widespread issue with no resolution from Hyundai what so ever. I have raised this issue with Hyundai as well.

Bought new, less that 400 miles in November 2025. Within 2 weeks dash board went blank/black. I consider this a driving distraction especially at night when nothing shows, no speed no gauges. Blackout time varies each occasion. Sometimes after a few seconds all warning light come on and stay on until vehicle shut off . Sometimes a NO GIGNAL message. Contiued after service visit with update to vehicle at about 7300 miles in January 2026. Service department acted like they have never heard of this issue.

2 times, while driving 35-40 mph, the vehicle automatically slammed hard on brakes to full stop without any danger or other vehicle near, causing neck pain/whip lash. 3 days ago, I attempted a U-turn in busy intersection, suddenly the vehicle braked hard and came to full stop without any danger near. The dash lights lit up, the vehicle stalled. I was in middle of very busy intersection. It would not move forward. I reversed just in time to miss being slammed into by fast moving oncoming traffic.

Component that fails & available for inspection upon request? HVAC heat exchange and faulty gas gauge. I drive from Minneapolis to Warroad, MN frequently and the floor wells has insufficient heat hence impairing use and safety in Minnesota's severe climate. I have videos on the following but I am unable to upload videos to your site: (1) when I have heat on high, full blast and to foot well ONLY, the dashboard vent is 115-143 degrees (using a digital food thermometer) and a ~60 degree difference with the footwell at 65-85 (although 85 degrees sounds warm at 1 degree outside my feet are very cold - I would be happy to have you test this with me). (2) Brand new SUV consistently 1.5 - 3 hrs to warm up. I explained to Hyundai this is NOT a software issue rather an HVAC air exchange issue. (3) The gas gauge consistently underestimates the remaining fuel available by 50% in cold weather - an issue that between Bemidji, MN and Baudette, MN (102 miles/1hr 45min) there are few gas stations. On 11/11/2025 I took the SUV to first Bloomington Hyundai - they said it is working as designed. Then 11/20/2025 to Morries Hyundai said they are aware of a similar situation with the EON. However, without an "error code" Hyundai is unwilling to fix the air exchange. Additionally, I opened case#: XXX[XXX] -68 with Hyundai corporate - additionally they are unwilling to admit fault - this vehicle should NOT be sold in Minnesota's extreme climate conditions. How was your safety of others put at risk? If I run out of gas, my passengers and I risk frost bite or fatality of hypothermia. Has the problem been reproduced or confirmed by a dealer service center? Yes. Has the vehicle or component been inspected by the manufacturer? Yes. Were there any warning messages or other symptoms of the problem prior to the failure, and when did they first appear? No warning messages have ever appeared. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The FAWS Forward Assistance Warning System incorrectly identifies a "sleepy driver" and turns off Adaptive Cruise Control. FAWS has a dozen triggers that will cause this system to incorrectly alert the driver that his eyes aren't looking at the road and it turns off ACC. The FAWS has a turn off switch but it does not turn it off. So, without this safety feature of Adaptive Cruise Control, the driver just gets constant alerts to stay alert. Hyundai claims it is working "as designed" and has a suggestion to invest in specific sunglasses, or not be taller than 6'1" so the eyes can be detected, or don't wear a hat. Seriously, these are in the manual.

Blindspot detection did not pick up car on my right side two times. Front collision warning is effected by the angle of the sun at certain times of the day. Dashboard dims randomly. Could be for a minute or much longer. Could dim on and off, or stay dimmed for over twenty minutes. Brought the car in twice for this problem. Claimed nothing found and tech reset the codes. Bought it in two weeks later, stating problem not fixed. Told them to check connection, suggested they might want to replace the cables, and its a known problem. Again, reset the codes. Only this time they fiddled with the dimmer control on the console and I can no longer adjust the setting.

The contact owns a 2025 Hyundai Tucson. The contact stated that while driving at an undisclosed speed, the instrument cluster independently turned off. In addition, the contact stated that an error code with an unknown message was displayed. The vehicle was taken to the dealer; however, the failure was not diagnosed. The contact stated that the vehicle had been taken back to the dealer three times since the vehicle was purchased. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was unknown.