Table 1 shows one common engine and engine cooling related problems of the 2025 Hyundai Tucson.
| Problem Category | Number of Problems |
|---|---|
| Engine And Engine Cooling problems |
The cars speedometer screen and radio screen go black and sometimes flicker on and off. This makes it impossible to see the speed. Also the car stalls sometimes when this happens in traffic. The autonomous braking applies the brakes even when there is a large distance from other cars and objects to the point where it has almost caused me to get into an accident on numerous occasions. The driver attention alert comes on and off over and over again even though I’m fully focused on driving and well aware of what is going on and this sometimes happens in a sequence where all of the warning lights illuminate on dash. Sometimes all of the warning lights display on cluster after it goes black and then car says to shift to park when display goes back on causing safety concerns for me in traffic. In addition my sunroof glass is making a loud noise like it’s going to crack.
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 car keeps randomly dying. Completely loses power even when driving.
On [xxx], my 2025 Hyundai Tucson hybrid displayed a red dashboard alert instructing me to “stop vehicle and check brake system. ” the vehicle experienced brake system warnings and a loss of power steering, requiring me to pull over. I immediately contacted Hyundai through the bluelink system, and the bluelink operator confirmed that multiple fault codes were visible in Hyundai’s system. I scheduled a Hyundai service appointment at the next available date. On [xxx], before the scheduled service appointment could occur, the vehicle experienced a sudden and total electrical failure while traveling at highway speed (approximately 65 mph). The vehicle lost propulsion and displayed brake system warnings. After reaching the shoulder, the vehicle also lost hazard lights while disabled in heavy rain. The vehicle was towed via Hyundai bluelink to a Hyundai dealership and removed from service. The occupants at the time of the incident included my wife and my minor child. The loss of propulsion, braking warnings, power steering, and hazard lights created a serious risk of a rear-end collision and injury. Due to repeated and escalating safety-related failures involving electrical, braking, and steering systems, I no longer consider the vehicle safe to operate. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).
Engine rpms surged and the car accelerated forward without foot on the gas pedal concerned about possible pedestrian accident or collision with objects and prop. Damage. Dealer was unable to duplicate the problem and no repair was made there is no warning. . . I never know when it will happen and it has occurred in a number of different circumstances.
Vehiclr has been doing this since 4 montbs after purchase, then a recall came out we were told it would fix the problem. 3 times now since the recall the odometer screen and media screen will go blank while your driving. The car wont accelerate, turn signals, and steering colum becomes hard to operate properly. We have had to near accidents 1 being less than 2 hours in August of 2025 after Hyundai just claimed to repair the issue. We were driving on [xxx], screen went out, we lost full control of steering, had to wrestle with the wheel to keep car in its lane, we were almost hit by semi truck and ran off road. We immediately took car back to dealership, and shop assistant mgr was able to see for himself, it wasnt working after theu just made repair. They kept car a few days we were very reluctant to take vehicle back, out of these safety concerns, and my family having to ride in this vehicle. We took ot back as the dealership assured us the matter had been taken care. Then last week on [xxx], in the evening was driving down street and the screens started to flicker and the car wouldnt stay centeryed in the lane, then it happened both went blank, the car slowed down and the fight began on operating vehicle. In regards to no turn signal would go off, it wouldnt accelerate, the steering wouldnt operate correctly, if o wanted to center the car in the lane, it would pull the car another direction. A 7 minute ride home took over 20 minutes. We took car back to world Hyundai matteson, the next morning and called Hyundai corporate office to inform them we didnt want the vehicle back. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).
Vehicle propulsion system failed, as a result vehicle rolled down an inclined driveway in to the street and was stuck in the middle on the street in traffic. Vehicle had started normally, was able to shift into drive, no obvious warning lights or error messages displayed. Vehicle would shift into drive/park/reverse as required but would not move. Upon shutdown an restart two warning lights were display but vehicle would still not move. Vehicle only had 168 miles on the odometer. Vehicle is a hybrid, engine was running and battery charged. Apparently the problem was a failed "over the air software update", this was corrected by dealer (see attached file). Safety issue is that the vehicle, 1 failed to display any error regarding a failed update, 2 failed to immobilize the vehicle allowing to move in an unsafe state, 3 failed to notify owner that updates had been done, 4 proceeded with an over thew air update that could potentially place the vehicle in an unsafe state.
First incident was July 2025 . Car had 1300 miles. Would not accelerate over 25 miles an hour. Made an appointment with route 60 Hyundai in vero bch, FL. They could not find anything wrong. (invoice # [xxx]) second time [xxx]. 3009 miles on the speedometer. The car would not accelerate over 4mph. After several minutes acceleration was possible. We will once again return to route 60 Hyundai. Car could not get thru a busy intersection. Very dangerous. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).
On sept. 12,2025, I was driving with two family members. I was stopped at a light with the auto on/off engaged. Fortunately, I had my foot on the brake as the engine revved very significantly. I threw the car into neutral and the engine returned to normal. Had I not done so, we would have plowed into two cars in front of us at the light. The car was taken to the dealership; but, they could not duplicate a recurrence in road testing.
While driving my car to virginia to see my daughter, the oil light came on in the middle of a highway, where the speed limit was 70, the car slowed down and I had to pull off to the shoulder as the car lost all acceleration, making it very dangerous on a highway I waited for about 2 hours for a tow truck I waited for almost 2 months to get my car back and it happened again after having it back for a little over a week mind you, I bought the car brand new with 45 miles on it and the first problem happened a little over 2 weeks after I bought it hopefully this can be resolved so that my car doesn’t spend more time being serviced than me driving it.
Car would not go over 25 mph. Had to pull to side of the road. I had to turn the car off and on then it ran normal.
My entire dashboard goes black and I lose all directions and functions in car. It happens when driving often. Additionally after taking to dealership, it's getting worse. Now warning lights come on and stay on such as master warning lights, batteries, power steering, etc. Ac shuts off, the car misses out when driving between 25 and 30 mph. The dealership told me it's not safe to drive.
I purchased a brand-new Hyundai vehicle on [xxx] from dublin Hyundai. Since purchase, the vehicle has exhibited repeated, serious defects that compromised the safety of my [xxx] baby and family. Timeline of events: [xxx] – vehicle purchased new. Safety concerns arose within weeks of ownership. July 16, 2025 – vehicle dropped off for major issues: camera display failures, heads-up display malfunctions, and random security errors. Vehicle remained in service for over two weeks. August 2, 2025 – returned with the check engine light on and a scratch on the deck. August 3–4, 2025 – dropped off again; dealership instructed that the fuel level must remain between 50–70%. August 11, 2025 – dropped off again; a loaner vehicle provided was unsafe — gear shift failure, body control system errors, infotainment failure, and inability to lock the vehicle. This put my baby’s safety at direct risk as the loaner could not be secured or reliably driven. August 19, 2025 – vehicle returned with new scratches and multiple issues still unresolved. Late August 2025–present – vehicle was relocated to san jose without my consent. I only know its location from the Hyundai app, which frequently alerts: “battery level is below normal. Please check that vehicle lights and accessories are switched off to avoid battery drain. ” I have not been provided proper updates from Hyundai or the dealership. Safety risk: repeated mechanical and electronic failures in both the new vehicle and the loaner. Vehicle is unreliable, unpredictable, and unsafe for transporting a young child. Manufacturer and dealer have failed to provide a safe, operable vehicle despite multiple repair attempts. I am filing this complaint because these issues pose a serious safety risk to me, my infant child, and other drivers on the road. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).
On June 30, 2025, I was driving at about 55 mph with the Smart cruise on. A message appeared on the left side of the dash (in the left circular screen) that said “conditions for Smart cruise have not been met”. And the cruise turned off, then a second message appeared that said the engine has been put on idle. At that time I tried to use the gas pedal and got no response. Fortunately I was near a parking lot on my left and had enough momentum to pull in and park. I turned the Tucson off and restarted it and was able to continue to drive. I took the Tucson to the dealer and they tried to duplicate the issue, but were unable to do so. Then the ran a diagnostic, but said it indicated everything came back as normal. I purchased this Tucson limited hybrid on 1/23/2025 so the fact that the dealer couldn’t duplicate the incident didn’t surprise me. I believe that this was caused by a software problem even though the diagnosis by the dealer indicated everything was normal and in range. However, I believe that their equipment and/or their technical expertise was insufficient to identify the problem. You can imagine the danger if this occurs on an interstate or other highway where speeds are as high as 65 to 70 & higher by some drivers.
I think when its hot like in illinois its been super hot the screen keeps going black!! I can't see the dashboard I called my Hyundai dealership will get it looked at seems like I am not the only one dealing with this issue. Main screen on left goes black or it has problem logos on it randomly.
Battery management system failed safety-could not drive on interstate. Very unsafe. Dealer inspected problem afterwards. Warning lights appeared at time of problem. No warnings before. No signs of problem before it happened. Synopsis: after driving through a torrential thunderstorm on the interstate (06-13-25) and as we were getting ready to slow down for our exit on the interstate, we hit the brakes and our SUV gave us a warning. The warning said, "battery management system discharge". The SUV is a hybrid. At this point the SUV locked into e v mode. Our SUV would only go 10 mph which was very dangerous. It should be able to go up to 35 mph in e v mode and then past that, switch into gas mode. As stated, we could only go about 10 mph. We made it to our exit and found a spot to pull off the ramp. We let the SUV sit for a few moments and turned it off. We let it sit for a minute and then turned the car back on. The SUV when we turned it back on gave us a check engine light and still would not go over 10 mph. Luckily we were stopping for dinner. We were able to proceed to our destination. After dinner around an hour or so, when turned the vehicle back on, the SUV still gave us a check engine light. But was able to drive normally and switch between e v and gas modes. We made it home safely at the end of the weekend on 06-15-25. On 6-16-25 we took the SUV to be looked at by the dealer we purchased it from. Our phone app showed code dtc p0aa600. We gave the code to the staff. The staff inspected the SUV. The report stated, "customer states stopped driving and there code p0aa600 battery warning light npf could not duplicate problem. Tech scanned for codes code p0aa600 was found as a history code. Tech checked live data and everything came back within spec. Followed the flow chart procedure for the code. Check for bms isolation faults none found. Check 12volt battery. Battery is good". We drove it home and filed this report.
The engine dipstick plastic bottom presents an issue to remove dipstick. Dipstick must be wiggled or twisted as it is pulled up without force for removal. The engine head and block holes are not in perfect alignment. The concern is if the dipstick is removed by force the plastic on the end of dipstick could be broken off and end up in the oil pan. That could cause engine damage and a possible safety issue losing power. Hyundai national consumer affairs has been notified but states they cannot report a design complaint directly. They offered the NHTSA as a place to report this concern. This was also experienced on another same make/model car on dealers' lot.
I leased a brand new 2025 Hyundai Tucson on March 15, 2025, with fewer than 10 miles on the odometer. Shortly after driving an additional 10 miles, the vehicle’s screen malfunctioned, displaying burn-in and becoming non-functional. This issue significantly affects safety, as it renders the backup camera unusable during operation. The vehicle was first brought in for service on March 17, 2025, but the issue was not resolved. Subsequent service attempts were made on March 20, April 9, and most recently on April 11, 2025. As of today, the problem remains unresolved. The vehicle has been in the service center for approximately 15 days since the date of purchase. In addition to the defective screen, the vehicle failed to start on one occasion, leaving me stranded alone in a parking lot, stuck in accessory mode with the brake locked. The car has also exhibited alignment issues, consistently pulling to the left while driving, which has required two alignments since the purchase date.
?? NHTSA complaint description (modify as needed) ?? safety issue: I purchased a brand-new 2025 Hyundai Tucson hybrid on March 3, 2025, and within 5 minutes of driving and less than 20 miles, the vehicle stalled three times on a busy highway without warning. ?? component/system failure: the vehicle suffered a complete power loss, rendering it undrivable in the middle of the highway. The gas pedal became unresponsive, and I had no control over the vehicle’s movement. ?? immediate safety risk: the sudden stalling on a highway put my family and other drivers at serious risk of a collision. We were left stranded for over 3 hours while waiting for assistance. The vehicle was inspected by Hyundai’s roadside assistance and later towed to the dealership. ?? inspection & confirmation of the issue: the dealership and Hyundai’s technical team later diagnosed the issue as a failure in the electric oil pump and the oil pump control unit. Hyundai has not provided a clear resolution and is pushing for repairs, despite the vehicle failing immediately after purchase. The manufacturer and dealership have not provided a pre-delivery inspection report confirming whether the vehicle was defective before delivery. ?? no prior warning signs: there were no warning lamps, error messages, or any prior symptoms before the failure. The issue occurred suddenly and repeatedly within minutes of taking delivery of the vehicle. ?? request for investigation: given the severity of this mechanical failure and its potential to cause serious accidents, I am reporting this to the NHTSA for further investigation. This issue needs to be addressed immediately before it leads to a fatal accident for another Hyundai Tucson hybrid owner.