2020 Hyundai Tucson

The contact owns a 2020 Hyundai Tucson. The contact stated while driving at various speeds, the vehicle stalled and failed to accelerate while the accelerator pedal was depressed. No warning light was illuminated. In addition, the contact stated that the A/C was blowing warm air. The contact lives in a hot climate and was concerned for the safety of her 2 minor children. The contact stated that on three separate occasions, three A/C compressors were used to attempt to repair the vehicle at a service center however, the failure persisted. The vehicle was taken to a local dealer where it was diagnosed at the owner’s expense due to the warranty being invalid. The vehicle was not repaired. Upon further investigation, the contact related the failure to NHTSA Campaign Number: 20V543000 (Service Brakes, Hydraulic). The manufacturer was not made aware of the failure. The failure mileage was approximately 30,000.

When driving this car it is hard to go to higher speed. Acceleration is a huge problem. Coming on to the highway I have to wait until there's no one approaching due to the fact that it takes about 40 seconds to a minute for the car to accelerate once it comes to a stop. When switching lanes it takes 40 to 60 seconds to accelerate as well. That's not safe. God forbid someone was speeding directly behind me I would absolutely be hit. It takes to long to accelerate and get out of the way. I was nearly hit by a semi truck due to this problem. Thank goodness the truck moved to the other lane because the Tuscon couldn't! Also the car won't allow you to close off the outside air while if the front or rear air function. So if I want to place air on the windshield I have to breathe in the air from the person in front tailpipe. That's crazy. This is the first car I've had that did this. It's disgusting especially living in ny why should I have to breathe in that toxin. Also I can not find the third seat belt for the passengers in the back. The car is suppose to be a five passenger car however only four can safely be seated.

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.