*Median odometer reading when the problem happened, where owners gave one. One complaint can name several problem areas.
Forward collision avoidance
The contact owns a 2020 Hyundai Tucson. The contact stated that upon starting the vehicle, the check engine, master general, and forward collision warning lights were illuminated. The vehicle was taken to the dealer, where it was diagnosed, and the contact was advised that the multifunction camera had failed and needed to be replaced. The manufacturer was notified of the failure. The failure mileage was 44,000.
Jun 11, 2021 · 44,000 milesEngine
On XXX, while driving at freeway speed in [XXX] with my [XXX] son in the back seat, the engine of my 2020 Hyundai Tucson (2.4L Theta II GDI, approx. 99,108 miles) seized suddenly and without warning. I lost all motive power in moving traffic and coasted to the shoulder, where my son and I sat stranded for 30 minutes with smoke and a burning smell coming from the engine while waiting for a tow. No warning lamps or messages appeared before the failure. COMPONENT FAILED: Engine. Tustin Hyundai ([XXX]) diagnosed the failure on RO XXX: engine seized; connecting rod pierced through the bottom of the engine block due to internal catastrophic failure at the crankshaft/bearings; starter had a burnt…
Sep 13, 2026Engine
Engine has defect that causes oil to heat at an unusual levels there for damaging other vehicle components such as The exhaust system parts clogging up and Triggering check engine warning lights for emissions.
Sep 3, 2026Engine
The contact owns a 2020 Hyundai Tucson. The contact stated that while the vehicle was receiving a routine oil change, the contact was informed that the oil pan was empty. The contact was advised to take the vehicle to the dealer. The contact was informed about a possible oil consumption test. The contact was informed that there was carbon blowing out of the vehicle. The contact stated that three months later, the oil pan was empty. The vehicle was taken back to the dealer, and engine oil was added; however, the failure reoccurred. The vehicle was taken back to the dealer where the contact was informed that the engine needed to be replaced. The vehicle was repaired. The contact stated that…
May 12, 2026 · 80,000 milesFuel/propulsion system
Dealer completed update 9C2 Theta 2 emissions update. After update, the car sputters slightly and increased noise is heard from the tailpipe. Customer returned to dealer after driving the car in different temps and noted the above complaint. Dealer verified the complaint but continues to take no responsibility for the fault on the repair receipt by writing condition is ânormalâ and recommending âcustomer to allow vehicle to properly warm up for one to three minutes prior to driving.â The last line of the service record indicates âno problem found at this time.â A template letter from Hyundai was attached to the repair record. Hyundai may be instructing dealers to not document…
Jul 8, 2026Engine
The engine lost power while driving, and the vehicle entered a reduced-power mode. The check engine light began flashing, and the engine made a loud knocking noise during acceleration. A diagnostic scan showed code P1326 (Knock Sensor Signal Range/Performance). The knock sensor was replaced, and the engine oil was refilled after discovering an oil leak. The vehicle operated normally for a short time, but the same symptoms returned. The vehicle is available for inspection. The vehicle suddenly lost power while traveling approximately 70 mph on the highway, making it difficult to maintain speed and safely keep up with traffic. This created a risk of being struck by other vehicles or causing…
Jul 20, 2026Engine
High excessive oil consumption and premature piston ring failure leading to excessive oil consumption
Jul 22, 2026Engine
Tried passing someone on the thruway, as I was about to the car jerked a bit then started decelerating. The check engine light started flashing and so did the oil light. Read the code as cylinder 3 misfire and a knock sensor. Changed the spark plugs and coil packs then checked the oil and saw there was no oil in the engine. Was told by my mechanic itâs a common problem with these Hyundai engines, it seems the rings are getting fried in the engine and thatâs why it consumes oil so quickly.
Jul 4, 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.
