NHTSA Complaint #11469544 — 2021 KIA SORENTO

We have been having a few issues with our sorento. 1. There will be times when the car wont accelerate or go past the current speed. The first time this happened, we were traveling on the highway and it was difficult to pull over to safely pull over. We had to restart the car completely and let it rest then restart it. The second time this happened, was right after it was "fixed" by the dealership and I was able to safely pull over and restart the car. 2. The second issue is the car will jerk violently when shifting in reverse or down shifting to a stop while driving in automatic. When we originally took the car in for this issue (not even a full year after purchase), a transmission leak was said to be the problem and fixed. This worked for a few months then the issues started to gradually return. The car will also jerk forward and back while sitting in park. While this issue isnt as dangerous, the hesitation in the movement of the car could put myself or my family at risk if the car will no accelerate or decelerate in time. No warning light or problem indication is given when this problem arises. .\