NHTSA Complaint #11517256 — 2016 HYUNDAI TUCSON

Back in december, 2022 my car was doing a shocking change of speed all of a sudden, for example I would be driving and accelerating, but the car would not speed above 40mph, and while I was still pressing on the accelerator, it would do like a shocking movement and accelerate all of sudden. At that time, the car had just stopped accelerating above 20mph which almost got me into an accident on the highway. I took the car to the Hyundai and they said that the engine was fine and had passed all tests, that only the sensor needed to be changed. I paid for the repair, but since I got my car back this is still happening, and I almost got into an accident again in the highway. I was just entering into the highway and when I pressed the gas pedal to change lane the car just blocked it did am abrupt movement trying to change speed, it didnt increase the speed, the car behind me was coming fast and beeping because it seemed like my car was coming to a full stop instead of speeding, but all of a sudden the car again did an abrupt change of speed and started increasing up to 60mph, but in order for this to happen, I had to release and press again. It is not the first time, I have tried contacting the service center to inform them that the car is acting the same way, the only difference is that now it doesn't stay at 20mph, this time it does speed after a few tries, but very abruptly