NHTSA Complaint #11541395 — 2013 HYUNDAI SONATA

This incident singled happen in a 20 or so miles on my way home commute, no freeway drive. I was driving pulling out of a parking street when I notice the vehicle tendency to pull me forward, even though I was preparing to stop. It continue to have this issue at a stop sign and traffic light. at first it was mild pull as if you are being towed. Sporadic pushing forward, but when I turned to the left I notice that the engine pick up speed on its own and the issue was exacerbated on turns to left and right. The issue continue to the point I stayed at a safety distance from other cars and the pull began to be more aggressive. I was driving slow at that point. With hazards lights on. On arrival to my home driveway and upon putting the car on park the engine RMP jump so high that scared me! The car sounded as if it would take off by its self. I had the foot on my brake and did not pump at that point. I took car to the dealership the next day and it continue to pull at sporadic times I drove slow and cautiously . Noticing that the pull got worse driving on a straight street versus the day before only on turns having more aggressive forward acceleration pulls. The dealer has check the car and has not been able to detect the problem with computer codes and apparently have not been able to reproduce the issue after driving the car. The mechanic, told me to take pictures of engine light if when I drive it has issues, and the light comes up. But not other solution was given.