general problems of the 2013 Hyundai Genesis - part 2

As vehicle comes to a stop and gas is pressed to go again- car engine turns off. Radio, air, windows all work. Car is then put in park and starts right up again. Car has done it 6x since June 14th. Dealer can't figure whats wrong with it. Different parts replaced- throttle body and purge valve. Car still dies at a stop. Concerning it will happen in traffic on interstate while driving with my kids in the car.

Rough idle on cold start. We have had this condition checked on 3 separate occassions with no successful repair. Condition was first checked at 18k miles and last at 34k. We have had to bring the vehicle to private shop to have our rough idle on cold start condition confirmed. No resolution with manufacturer at this time.

We were at an intersection on highway 1. Cars were driving by at the speed limit of 55mph so it was important that we accelerate quickly in order to turn left onto the highway and avoid being hit by oncoming traffic. When it was time to go I stepped on the accelerator, the car began to move and then we experienced engine hesitation, where there was a momentary period where the engine did not respond to me stepping on the accelerator. I reacted by stepping on the accelerator completely to the bottom and still had no response - we were coasting. I completely backed off the accelerator and stepped on it again when the engine finally began to respond. Vehicles were fast approaching and in that moment I felt scared and lost trust in my car's functionality. Earlier that day I also noticed that when accelerating, when already moving, I noticed that the transmission felt like it would wobble. It's difficult to describe. It felt like very subtle momentary losses of power or acceleration followed by a recovery in the acceleration and then repeating but in quick succession. You would only notice it if you owned the car. I have not been able to duplicate it. Maybe it was the traction control system but being unable to accelerate in a situation like mine was very dangerous.

My Genesis accelerates on its own, this has happened several times, the last time it happened I was able to get it to the dealership so they could see it, they turned the car off & could not duplicate the problem the 4th time it happened the car lunged out at a stop light & accelerated to 50 mph before I could get it stopped.

Multiple times I have accelerated the car to get onto the highway, change lanes quickly,and make right on reds, only to have it literally do nothing. At times it takes 2 to 3 seconds before it accelerates and then seems to have a tough time shifting through the gears. At low speeds the car seems to hesitate and shift poorly. Hopefully the dealer can do something to correct the issue.

Vehicle hesitates when trying to accelerate in city & highway traffic. I have taken it to the dealer twice and it will be the third time tomorrow. They don't seem to have a solution and tell me that the vehicle is learning my driving habit's. (how funny). This is my 15th or so new high line vehicle. This hesitation is causing life threatening experiences. I almost got creamed, (hit) several times while trying to merge on the free way. I see I'm not the only one with this problem. We need help.

When accelerating at low speeds (specially on freeways) the transmission experiences a delayed shift between gears 3-5. The shift delay typically lasts 2-3 seconds. This causes the rpms to increase to 3000-4500. Driver has to heavily accelerate to enable the transmission to up shift. In addition, this causes the rear tires to spin if esc is turned off making it difficult to control the vehicle. Vehicle lunges forward suddenly as if the computer got the required information to accelerate this causes sudden forward moment. Car was taken to the dealer , they found no issues.