Hyundai Tucson electrical problems

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)

My 2018 Hyundai Tucson experienced complete engine failure at around 118,000 miles. The motor suddenly blew without warning. This vehicle uses an engine type known for widespread engine defects, including bearing wear and internal failure. I bought the vehicle used in 2023, maintained it regularly, and there were no warning lights or overheating before the failure. I had to put oil in my vehicle every week. I had to use 5qts of oil. It smelled like fumes coming through the vents. It then stalled on the highway while we had our son in the vehicle and shaked profusely. Mind you we had our son in the vehicle. How unsafe is that. I then did my research and found out Hyundai engines of this generation have a history of stalling, seizing, and internal damage. I am filing this complaint because this appears to be part of a known safety defect that can cause sudden loss of power while driving. We took it to shop and confirmed the motor blew. It was faulty. Also, sometimes the electrical components would turn off in vehicle such as radio and would go black. Also the turn signal would be on and then turn off. It would also shake while driving. This needs to be taken care of ASAP as it almost caused danger to my family and also caused financial strain on my family too as I now had to roll over my vehicle loan into a new safe vehicle. I would like to be contacted in regards to this. Thank you.

In October 2025, the center display screen in my 2025 Hyundai Tucson Hybrid began shutting off repeatedly while the vehicle was in motion. The screen controls essential functions including speed information, navigation, backup camera, safety alerts, and hybrid system data. When it shuts off, all of these features become unavailable without warning. The failure is intermittent and continues to reoccur. The component involved is the center display/infotainment system and may affect related radar and safety-system warnings. The dealer stated they duplicated the issue and reported that it was repaired, but the same display failure occurred again afterward while I was driving. The vehicle is currently with the dealer and is available for inspection upon request. My safety and the safety of others is put at risk because when the screen shuts off, I lose access to critical vehicle information. This has happened at highway speeds, including one instance where the display shut off approximately eight times within 20 minutes. In addition, the radar warning system has activated when no nearby vehicles were present, creating distraction and uncertainty. The problem has been reproduced by the dealership, documented by me on video, and reported to the manufacturer. The vehicle has been inspected multiple times by an authorized Hyundai service center and reviewed by the manufacturer’s customer service department. There have been no police or insurance inspections because the defect has not resulted in a crash, though the safety risk is significant. Warning symptoms include intermittent radar system alerts appearing without surrounding traffic. These symptoms began in October 2025 and have continued even after dealer repairs. The display failure persists and the vehicle remains unsafe to operate. P.S. I cannot upload video evidence as the website would not allow me and I have to start over.

I am writing regarding a serious incident involving negligent automotive service performed by Jiffy Lube Store #687. On October 24, 2025, I took my 2017 Hyundai Tucson to this location for a standard oil change. I trusted that the service would be completed properly and safely. However, on November 21, my vehicle’s oil lamp unexpectedly illuminated. Concerned, I returned to Jiffy Lube on November 22, where employees informed me that they had “sealed the small leak and topped [my] oil,” adding that I was entitled to two top-offs between oil changes and “should be good for two weeks.” Tragically, the very next day, November 23, the oil lamp flashed again. My vehicle then shut off while I was driving, with my children in the back seat. This was a frightening and dangerous situation for all of us. I am now left confused, stressed, and unsure of the full extent of the damage.

Attention warning... If you wear glasses that transition to dark, the system shuts down the car on cruise control. Numerous warning lights and bells. Take a break warning and sounds continuously popping up on the screen. There is no way to disable the eyes forward attention system. You cannot wear sunglasses as it can't see your eyes. I use my cruise control all the time. But the system shuts it down. This happens on all 2025 Hyundai equipped with the attention system.

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.

Sensors something to do with the motor and not sure where the other sensors is related to could be the motor as well. The safety was not good due to it shut off in the middle of traffic and making wraddling noise. I took the vehicle to the dealership where purchase from. They have done nothing besides fixed one thing that I know of supposed to been the surpension. But the other problems was not fixed No it has not been inspected by anyone The warning lamp come on and just blinking none stop

Instrument cluster screen and HUD go entirely blank intermittently, for various lengths of time. Loss of speedometer is a safety issue. Also, have no idea of what other functions may, or may not be working. Dealer acknowledges seeing and servicing this problem for other owners. And Hyundai owners online forum report the same issue. Dealer has replacement component ordered, but not 100% sure of cause or solution. No warning whatever. First occurred shortly after purchase in July 2025, with less than 1000 miles on it.