general problems of the 2020 Hyundai Tucson

Burning oil at a rate of 2 qts per 1000 miles driven. Known issue in these models of Tucsons. Not covered by the class action lawsuit as this VIN was not identified. It is burning oil at a catastrophic rate. The problem has burned through multiple catalytic converters that were covered under the warranty but did not solve the underlying problem. Has been burning oil since owning the car a year ago.

On December 27, 2025, while driving, the engine suddenly lost power and the vehicle entered limp mode and became undriveable. A warning light appeared and diagnostic code p1326 was later confirmed, indicating engine bearing failure. The vehicle could not be driven safely and required towing to a Hyundai dealership the following day. The engine failure caused a loss of propulsion safety risk. The vehicle remains out of service pending a full engine replacement. The vehicle is available for inspection at a Hyundai dealership.

My car has been burning through about 2 quarts of oil every 1000 miles. Hyundai will not replace the engine. If this continues my engine could malfunction while driving. This is a serious safety concern and there's plenty of information on it. They refuse to recall it.

The check engine light became flashing and the vehicle went into limp mode while occupied by two adults and one minor child as they were merging to access the freeway.

Jan '22 - reported check engine light had begun to turn off and back on when gas tank was low. Feb '22 at 19k miles catalytic convertor reported failed for code (p0420), 3 way catalyst, upper and lower gaskets, and manifold all needed to be replaced - took 4 days Aug'23 called to request service for check engine light because it was coming off and on over periods of time. Scheduled for Sep'23 Sep '23 service reports new cat quoted for code p0420, I was not verbally informed by service advisor. 16 Nov '23 driving home and car starts to shake and is slow to accelerate, check engine light started to flash, car enters limp mode, could not drive safely on highway and waited hours for a tow. Codes p0420(cat convertor), p1326 (knock sensor) 25 Nov '23 picked up car, had catalytic convertor, manifold gasket, knock sensor replaced. Drove 27 miles and car check engine light begins flashing again (p1326) on freeway while merging. Car hesitates, starts to slow, had to merge over to shoulder from far left lane as car had no acceleration. I felt unsafe to exit vehicle being 9 months pregnant. Waited 2 hours for tow back to service dept the same day I picked up vehicle. 8 Feb '24- picked up car from service department. They performed engine combustion chamber cleaning and reported excessive cylinder wall scoring. Service advisor feels confident this fixed the problem. I feel unsafe driving a car that has left me stranded multiple times on busy highways and freeways, especially with children. The manufacturer keeps replacing parts and cannot seem to diagnose issue, they keep repairing problems caused by a major issue that has not been diagnosed.

It happened on two different occasions but only when driving at high speed using the cruise control. Here is what happened. Driving on the cruise control I “set” it to 70 mph. Driving on the two lane highway with both lanes blocked by other vehicles, I pressed the “brake” pedal. The car slowed down and I continued driving at a lower speed. When traffic in front of me cleared, I pressed the “resume” button on cruise control. With no obstacles in front of me, my car was supposed to accelerate to the previously set speed of 70 mph. Instead, it was slowing down. When pressing the gas pedal the car was not accelerating. It felt like the car “lost power. ” it felt like the automatic transmission shifted to a neutral or may be the lowest gear. Pushing the gas pedal did not do anything and on both occasions I managed to steer the car to a road shoulder. It was a scary situation with heavy fast moving traffic on a narrow mountain highway. I stopped the car, then tried to go again. It would go very slow on, what felt like, the lowest gear without acceleration. I then stopped the car again and turned off the engine. Turning the ignition off resets the electronics and I was able to get back on the road. The car continued to drive normally on cruise control until the same happened again the next day. As I said, it happened on two different occasions. From there on I avoided pushing the “resume” button on cruise control and I am afraid of using it from now on to avoid potential accidents. I consider this to be a life threatening malfunction and I reported it to Hyundai’s customer care. They opened the case number and suggested going to the nearest dealer. I took the car to the nearest dealer. They kept it for several days, drove 40 miles and, as I expected, were not able to replicate the problem. In my opinion, this problem needs to be analyzed by the engineers not a dealership's technician. Is speed a factor? is temperature a factor? what is the factor?.

The contact owns a 2020 Hyundai Tucson. The contact stated that while driving approximately 65 mph the instrument dashboard display suddenly blacked out and the steering wheel malfunctioned causing the driver to lose control of the vehicle and crash down an embankment into a tree. During the incident the driver sustained a fractured left shoulder and head trauma. A police report was taken at the scene and the vehicle was towed away. The cause of the failure was not determined. Prior to the crash the vehicle had been serviced on multiple occasions for exhibiting a lose of power, hesitation to accelerate. . The vehicle was taken to the local dealer who replaced the transmission and reprogrammed the computer software but the failures continued to occur. The manufacturer was notified of the failures. The failure mileage was 38,000.

The contact owns a 2020 Hyundai Tucson. The contact stated that while driving at various speeds, the vehicle intermittently stalled while depressing the accelerator pedal without warning. The contact stated that after the vehicle stalled the vehicle then started to accelerate and resume normal operation. The contact had taken the vehicle to coconut creek Hyundai (4960 n state rd 7, coconut creek, FL 33073) where they inspected the vehicle and were unable to determine the cause of the failure. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 5,200.

When sitting at a stop light, with the car in drive, the vehicle starts to lurch multiple times. It feels as if someone behind me is tapping my rear bumper. I have taken it earnhardt Hyundai in north scottsdale, arizona three times. They cannot find out what the problem is. The car is new with only 6400 miles on it.