general problems of the 2012 Hyundai Veloster

After an update for a recall for brake issues, the dealership updated the knock sensor update without my consent. After the knock sensor software was installed, my 2012 Hyundai Veloster will not operate without going into protection mode. Hyundai states that they can not reverse the software update to make my vehicle operable again. This has already come up as a safety concern as my wife was on the interstate when the vehicle shut down in 70+ mph traffic.

Driving down the freeway, started to accelerate in sport mode, heard something pop. Sounded like the clutch slipped or a belt broke. Lost most acceleration. Got off freeway to take side streets home. Had a lot of trouble accelerating up hill. Would accelerate but very slowly. Not on pace with gears. Was shifting weird. Both in d and s. Took me about 4 blocks to get from 0 to 25mph.

My car is having issues describing what is happening in the recall, the engine is louder than when I go out it sounds like you're knocking noise and I just got it in September. I need to speak with somebody about this since it's not listed on the recall.

About 10 feet from my parking space, I prepared and aligned my eyes to pull forward into the space. Suddenly, my car accelerated and I jumped the curb, and crashed into my apartment building, without me being able to regain control of the car. Now I've been parking for many years, and I was not impaired in any way, shape or form. How fast must that car have accelerated to what mph? I'm terrified to drive the vehicle. I have noticed the whole time I had the car about a "lurching forward", be it a red light or in line at fast food line drive up. Once it starts lurching forward I'm worried im going crash into the car in front of me in line or at the red light. . Also, sometimes when the light turns green, I hit the gas and the car doesn't go anywhere. Then violently throws the car forward accelerates.