Hyundai Tucson electrical problems

Federal Motor Vehicle Safety Standard (FMVSS) 111 regulates rear visibility systems. It requires backup cameras to shut off within a specific time or distance after moving forward to prevent driver distraction. A screen stuck on the reverse camera means the vehicle failed to comply with federal safety safety standards in that moment, actively flashing an illegal, high-contrast visual distraction while trying to navigate. I am writing to formally report a critical safety defect regarding the infotainment system in my 2026 Hyundai Tucson, which directly resulted in property damage on 7/6/26. While driving at approximately 35 mph, the center display screen failed to disengage the rear view camera. The persistent, high-visibility flashing of moving traffic behind me in my peripheral vision completely obscured my forward safety alerts and navigation, creating an immediate visual hazard. This system glitch distracted me at a critical moment, causing an impact with a curb. Given that this incident was precipitated by a verified malfunction of a federally regulated safety system (FMVSS 111), I requested that Hyundai corporate review this case, investigate the failure of this component, and cover the cost of the $3,337 structural repairs. They have denied my request. I am aware that NHTSA Recall 26V400000/Hyundai Recall 304 is pending complete entry of all affected vehicles (vehicle was built at the Montgomery plant). Hyundai issued Technical Service Bulletin TSB 24-BE-001H for 2022–2026 Tucsons. It officially documents that these infotainment systems suffer from "freezing, lagging, unresponsive touchscreens, and intermittent blank screens". The bulletin attributes this to a loose internal coaxial cable and software bugs. I feel strongly that the camera freeze is a direct byproduct of this documented hardware/software defect. Hyundai explicitly stated to the federal government: "An instrument panel display that fails increases the risk of crash".

I bought my car in for recalls and they performed service. I got down the road when the HUD started going out over bumps. They could not duplicate it when I bought it back after picking it up. This was yesterday 7/16/26. They have had this car for a total of 18 days not including other issues that I have bought it in for. Today I am having issues with the instrument cluster and HUD going out randomly over bumps still. This is exactly what I explained when dropping it for the repair. This is resulting in me not being able to read the instrument cluster since it displays no signal on cluster or goes completely black.

I purchased a 2025 Hyundai Tucson in March of 2026. Shortly after the purchase the screen began to malfunction. The screen glitches continuously while driving and there is no way to turn it off. This creates a significant distraction and raises serious concerns about driver safety. Especially driving at night. The screen turns completely dark then all of a sudden comes back in super bright. Because of the glitching there is no way to get to the setting to possibly turn the brightness down. It also creates a loud noise for about 10 minutes then resets itself and start all over again. I notice there was a recall about the screens glitching previously and I reached out to Hyundai and they informed my VIN wasn’t apart of the recall so there was nothing that could be done. Because the vehicle is over 60K miles I am not able to use the factory warranty. I believe it is unreasonable for a vehicle that is only a 2025 model to experience a major electronic failure after such a short period of ownership. Regardless of warranty limitations, consumers should be able to expect that critical vehicle systems, particularly those affecting safe operation, will function properly. I respectfully request that Hyundai and/or the selling dealership review this matter and provide goodwill assistance by covering the diagnostic fee and repairing or replacing the defective infotainment screen. I believe this would be a fair resolution considering the age of the vehicle, the timing of the failure, and the potential safety implications. I have taken a few screenshots of the video I recorded to show what is happening. I am not able to upload the video so you can hear the loud noise it makes.

The head-up display and the digital display cluster turn off and on while driving. The digital display cluster seems to lose connection and will show a "NO SIGNAL" message. This will happen for minutes at a time. When this happens, the display is black and does not show speed or other important safety information. The vehicle has been inspected twice by the dealership; they are not able to replicate the issue. This problem began within weeks of purchasing the new vehicle.

The contact's son owns a 2023 Hyundai Tucson. The contact stated that while driving at various speeds, various warning lights illuminated, and various messages were displayed on the instrument panel; however, the warning lights disappeared upon restarting the engine. The contact stated that her son was forced to restart the vehicle after the vehicle failed to accelerate from a complete stop on one occasion. The vehicle was taken to the dealer for diagnosis; however, the dealer was unable to diagnose or duplicate the failure. The contact was informed that the vehicle could not be diagnosed unless the warning lights were illuminated. The manufacturer was notified of the failure, and a case was filed. The contact later received a letter from the manufacturer confirming the dealer's information. The vehicle had yet to be repaired. The failure mileage was 21,000.

While driving my 2018 Hyundai Tucson Limited 1.6L Turbo with the 7-speed EcoShift dual clutch transmission (DCT), the vehicle has repeatedly failed to engage and hold gears, resulting in loss of motive power in traffic. Diagnostic scanning retrieved codes P074B (Unable to Engage Gear 3), P074B71 (Unable to Select 3rd Gear), P074B07 (Gear Dropped Out of 3rd Gear), P092177 (1st Gear System Referencing Failure), and P0921 (Gear Shift Forward Actuator Circuit Range/Performance). A Hyundai dealer diagnosed the failure as requiring transmission replacement at approximately 93,000 miles. This is the same 7-speed DCT and the same failure mode addressed by NHTSA Campaign 16V628000 (Hyundai Recall 149) and Hyundai Service Campaign T1B, which covered 2016–2017 Tucson vehicles but excluded the 2018 model year despite using the same transmission. Hyundai has acknowledged this defect in 2018 vehicles through TSB 21-AT-014H and TSB 22-AT-007H, which prescribe a TCU software update, but issued these as service bulletins rather than a recall, so owners were never notified. When I requested the TSB software update, the Hyundai dealer refused to perform it. This defect creates a serious safety hazard: the vehicle can drop out of gear or fail to accelerate without warning while in traffic, increasing the risk of a crash — the identical hazard NHTSA cited in granting recall 16V628000. I request that NHTSA review whether the existing recall scope should be expanded to include 2018 Tucson vehicles.

Good morning the problems I am having with my 2025 are very discouraging. Started October of 2025, my tire light illuminated stated the tires were low when they are all at correct specs when using an air guage to check. November of 2025 while driving at night the headlights suddenly shut off briefly then came back back on. January of 2026 while leaving work the transmission would not shift, held accelerator pedal to floor but could not go above 20 mph all the way home for 3 miles. April of 2026 the right side of navigation screen went completely black, shut vehicle off twice and on third restart the screen reilluminated. June of 2026 same thing with the screen going black. I have had my Tuscon at the local dealer here in my town for supposedly a repair that they state was a "coaxel cable" behind the dash that was fixed that was causing this issue. I also had the recall performed for the front view camera software update but it is still showing not completed. This is very frustrating to be having experiencing these kind of issues on this new of a vehicle. Clearly something is going on with the software or something and the dealer keeps telling me they are not finding anything wrong. I am a service advisor myself at a small independent shop so I understand the terms they are using but something needs to be addressed to correct the issues that I am having. It is scary when driving and the screen goes black or driving at night and losing the headlight functions. I would appreciate if somebody will look into this and reach out to me to get some kind of remedy for why this is happening. I am paying alot for this vehicle and to say I am satisifed is an understatement. I have purchased Hyundai as my choice of vehicle due to the quality, great warranties and good reviews from other consumers however I am seriously thinking of exploring alternative makes as I do not want to keep going through this. Plus the engine consumes oil. I have attached p/w for review as well

While driving on the expressway my car hit a bump and all the power from the vehicle was lost. I’ve been having issues with my car and have taking it to Hyundai dealership. Everytime I take it they are saying my car is fixed. But it’s not. Now they are saying they didn’t fix it because I didn’t explain the problem to them. I lost control driving high speeds. Thankfully the power returned. When I tell hyuandai in Naperville what happened they said it’s not their responsibility because I didn’t say it was electrical. I told them I didn’t know I had a an electrical problem. I thought that if I take my car in they would tell me the problem.

The contact owns a 2025 Hyundai Tucson. The contact stated that while in reverse, several warning lights illuminated on the instrument panel, and the vehicle suddenly reversed without depressing the accelerator pedal and crashed into a light post. The air bags did not deploy. There were no injuries sustained. The contact sought medical attention after being overwhelmed by the experience. A Police report was not filed. The contact was able to drive the vehicle, and the vehicle was taken to the dealer, and the front-view camera was updated; however, the dealer was unable to determine the cause of the failure. The vehicle was taken to Imperial Body Shop to repair the body damage. After the software update was performed, the contact became aware that the vehicle failed to turn off immediately, and several attempts were needed to turn off the vehicle. On another occasion, the contact was able to turn off the vehicle; however, the engine continued to run. Several attempts were needed to turn off the vehicle. The manufacturer was made aware of the failure. The manufacturer opened a case for the failure. The failure mileage was approximately 7,500.