*Median odometer reading when the problem happened, where owners gave one. One complaint can name several problem areas.
Exterior lighting
Issues: 1. Stop lights failure light turns on and off. 2. Engine light failure notification turns on and off. 3. Headlights low bims failure notification turns on and off. Actions taken: 1. Headlights low bims bulbs were changed. 2. Engine light codes reviewed and updated as report showed; however, warning light still turning on. 3. Stop light fuse has been changed, light bulbs still working.
Oct 9, 2026Electrical system
While driving to work, the vehicle abruptly shut down in the middle of the highway. There were no signs or warning given. The vehicle was towed almost 100 miles home. The vehicle was later jump started and the alternator and battery were tested and it passed all tests.
Oct 6, 2026Engine
Engine stalls jurks lose of power engine light blinking excessive oil use
Jan 31, 2026Power train
There is a definite KNOWN problem with the transmissions in all 2018 Hyundai Tucsons and maybe other model years as well. This is well documented via the Internet by the number of articles concerning this ongoing problem! This problem seems to have been unresolved over a pretty long period of time now! It is most definitely a safety issue and should be addressed. When issue happens it leaves the vehicle at the mercy of surrounding traffic! It definitely requires your consideration and your looking into! Search the internet concerning this transmission failure problemâ¦. Why has this NOT been addressed prior to or long before now?
Aug 8, 2026Engine
The contact owns a 2018 Hyundai Tucson. The contact stated that while driving approximately 65 MPH, there was a knocking sound coming from the engine compartment, and the vehicle started shaking aggressively. The brake pedal was depressed; however, the vehicle failed to respond as needed, and the vehicle lost power steering functionality. The vehicle was coasted to the side of the road, and the parking brake was engaged. The vehicle stalled and was towed to the nearest gas station. The vehicle failed to start and was towed to the residence. The failure mileage was approximately 164,000.
Jun 14, 2026 · 164,000 milesEngine
2018 Hyundai Tucson catastrophic engine failure consistent with known Hyundai Nu engine defect pattern documented across 141 prior owner-filed NHTSA complaints for this same vehicle. OBD codes P0326, P0301, P0302, P0303, P0304 documented July 19â25, 2026. Independent licensed mechanic confirmed in writing that engine requires replacement. Authorized Hyundai dealership service manager verbally confirmed coolant in oil â the exact failure mode documented in prior NHTSA complaints for this vehicle generation. Service Campaign 966/KSDS was completed and active when failure occurred and did not prevent it. Hyundai Motor America denied goodwill claim Case #43120457 citing out-of-warranty…
Jul 19, 2026Engine
I took my Tucson to my local Hyundai dealership on Friday, August 28, 2026. It was there for a standard oil change and tire rotation. When I scheduled the appointment online the system also said there was a recall. I always stay on top of that so I let them take care of that as well. The recall didnât seem like anything major, it was something to do with emissions. Ok, when I left the dealership that day the engine was warm so there was no noticeable difference. I didnât use my vehicle at all for the next few days. When I got into it Monday morning for work I noticed immediately after starting the car and taking off the engine was hesitating and bucking. This lasted a few minutes. The…
Aug 28, 2026Engine
I own a Hyundai Tucson 2018 SEL Plus. My problem is my vehicle is coming to the end of it's 100,000 mile warranty. This vehicle started burning oil about 30,000 miles and it got worse. I checked on recalls and there was no recalls for my VIN number for this vehicle. My Hyundai vehicle is burning a quart of oil every 300 miles and this is no exaggeration. I bought the car brand new and had to replace my 1st Catalytic converter at 79,627 miles on 5/14/25 that was originally on the car. The second Catalytic converter that I had put on I, had to replace that Catalytic converter again at my cost at approximately $900.00 and then after that it plugged up again at 91,928 miles on 7/28/26 and I,…
Jul 28, 2026
Owner complaints are submitted to NHTSA by the public and are not verified. Shown as filed (NHTSA removes personal details); long reports are shortened.
