2014 Hyundai Tucson problems

Filed Sep 28, 2026 · Fuel system · TX

An authorized Hyundai dealership performed a major engine replacement on my vehicle on June 11, 2024. The vehicle mileage was documented as 110,797 miles in and 111,799 miles out. In September 2026, after the vehicle had reached 129,430 miles, I brought it to an authorized Hyundai dealership because of a severe gasoline odor and evidence of gasoline entering the engine oil. The dealership documented the vehicle at 129,430 miles in and 129,431 miles out. The documented mileage from the 2024 engine replacement's out-mileage of 111,799 to the September 2026 diagnostic in-mileage of 129,430 is 18,633 miles. The vehicle was returned to me, but the fuel/oil contamination condition recurred within approximately 48 hours. The oil level subsequently increased substantially. I repeatedly requested the dealership's technician narrative, diagnostic findings, test results, and electronic service documentation showing what was inspected, what was tested, and what findings supported the dealership's diagnosis. The dealership performed the work, yet these records have not been provided to me. Hyundai corporate has also not provided the requested documentation and has directed me toward additional diagnostic expense rather than providing the records from the inspection already performed. The 2024 engine-replacement documentation lists the replacement engine and associated service parts, including service kits 21111-2GK50-QQH and 21111-2GK70-QQH, as well as oil-cooler pipe/hose assembly 25470-2G050-QQH. I am requesting that the actual service records establish what components were installed, replaced, transferred, or reused during that repair. I am not claiming that the available information by itself establishes the root cause. My concern is the recurrence of apparent fuel contamination of the engine oil only 18,633 miles after the documented engine-replacement out-mileage, combined with the lack of diagnostic documentation from the authorized dealership's inspection. I am su

Filed Aug 26, 2026 · Engine · TX

Complete engine failure in July of 2024. When the car was sold to us it was under recall and not repaired and we were not told there was a recall. When the engine failed we were told we were at fault because we failed to get the recall addressed.

Filed Apr 20, 2026 · Engine · 134,000 miles · IL

The contact owns a 2014 Hyundai Tucson. The contact stated that while driving 40 MPH, the vehicle started making an abnormal ticking sound. While accelerating, the sound level increased. The contact stated that the failure was related to the engine warranty extension TXXM. An independent mechanic was contacted and determined that there was an internal failure with the engine. The fluid levels were topped off; however, the sound continued while driving. The vehicle was towed to the local dealer and the dealer declined to replace the engine due to incomplete updates. The warranty was not transferred. The vehicle was not repaired. The vehicle was purchased from Enterprise Rental Car, and the warranty was not transferred to the owner. The manufacturer was contacted and opened a case. The failure mileage was approximately 134,000.

Filed Feb 23, 2026 · Engine · MS

My truck started knock and losing power as I drove it. I took it to get serviced put the machine same is was a recall on the engine. I took it to the Hyundai dealership with in 2 weeks he said it was rejected by Hyundai to replace my motor. I service my car but they said I didn't. If it's a recall and not my fault.

Filed Jan 12, 2026 · IL

I am the original owner of this 2014 hyundai tucson. In august 2025 I noticed that the rear passenger door locks seized. This meant the door could not be opened from the inside, outside or remotely. This presented a serious safety hazard in the event of a collision , overturn , fire or flood. No passenger could exit, and no rescuer could open the door. I notified hyundai customer service and they gave me a case #[xxx], but said there was nothing they coud do as no recall had been made. However they did recall the 2015 hyundai tucson for the same defective part. So they are aware of this defect and hazard. Since hundai refused to fix this, I instructed my locla mechanic to replace the locking mechanism at a cost of $649.80. Bill attached. I ask that h;yundai reimburse me as this was a life threatening defect. Information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6)

Filed Dec 15, 2025 · Engine · 130,000 miles · MI

The contact owns a 2014 Hyundai Tucson. While the contact's wife was driving at an undisclosed speed, several unknown warning lights illuminated, and the vehicle lost motive power. The contact's wife was able to coast the vehicle to the shoulder of the roadway. The vehicle was towed to an independent mechanic, where it was diagnosed with engine failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The contact was advised to have the vehicle towed to the dealer. In addition, the contact was informed of Campaign 953 (Extended Warranty on the Engine). The vehicle was later towed to the dealer, where it was diagnosed with engine failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. In addition, the contact was informed of Campaign 953 (Extended Warranty on the Engine). The manufacturer was made aware of the failure by the dealer. The manufacturer initially agreed to a good-faith repair. The manufacturer declined the good-faith repair because the Campaign 953 requirement was not performed. The contact had not received information on Campaign 953. The failure mileage was approximately 130,000.

Filed Nov 16, 2025 · Engine · TN

On 10/13/25, I was driving on a state hwy & lost all power. All of my warning lights came on. I managed to pull into a driveway & when I tried to start it, puffs of smoke were coming from under the hood. I got it to my mechanic & he said my starter was burnt up. He replaced the starter & discovered that my engine is seized up. It was a scary incident especially driving on a busy state highway. It put my life & others lives in danger. There were no warning lights on prior to this. I acquired the vehicle in February from a car lot. I have had it serviced regularly.

Filed Sep 29, 2025 · Engine · 110,000 miles · OH

The contact owns a 2014 Hyundai Tucson. The contact stated that while driving at an undisclosed speed, the vehicle inadvertently lost motive power. The contact was able to coast to the shoulder of the roadway, where the vehicle was able to be restarted. The vehicle returned to normal functionality, but the failure became a regular occurrence. The low oil warning light was illuminated. The vehicle was taken to the dealer, and an oil consumption test was performed. The contact stated that after performing the oil consumption test, the contact was informed that the vehicle was consuming over 1 quart of oil per 1,000 miles driven. The contact was advised by the dealer to continue driving the vehicle for another 1,000 for further evaluation. The manufacturer was notified of the failure, and a case was filed. The failure mileage was 110,000.

Filed Aug 26, 2025 · Engine, Transmission · MI

The engine experienced catastrophic failure. A piston punctured the engine block, likely due to failure of the connecting rods, an issue known to be associated with the recalled Theta II engine. The engine is still in the vehicle and available for inspection upon request. We were scared and felt seriously endangered during the incident. The engine failed suddenly while we were driving on a busy highway. After a loud clunk, the vehicle immediately lost acceleration and would not respond to throttle input. We had to quickly pull over onto the shoulder while traffic sped past us at high speeds. The sudden loss of power in fast-moving traffic put us at serious risk of being rear-ended or causing an accident. It was a frightening experience that could have resulted in injury or worse. An independent mechanic inspected the vehicle and confirmed there is a hole in the engine block caused by a piston. We brought the vehicle to a Hyundai dealership for further inspection. Still, their communication has been poor, and they have not yet confirmed whether they acknowledge the issue or its relation to the Theta II engine recall. Our independent mechanic has inspected the vehicle and is currently with a Hyundai dealership for inspection. It has not been checked by police or insurance representatives. No third-party inspector has been involved beyond the dealer and mechanic. There were no warning lights, error messages, noises, or performance symptoms before the failure. The engine failure was sudden and occurred without any prior indication of a problem.

Filed Aug 25, 2025 · Fuel system · OK

The high pressure fuel line began leaking gasoline after warrantee replacement of engine.