2012 Hyundai Accent Vehicle speed control Problems

“When driving, especially in colder temperatures, when accelerating and braking, the brakes feel like there is something not letting the pedal go down when you push them. Ever since I noticed that happen, the acceleration and speed stays at a higher speed when driving. I have to be very careful when accelerating behind another vehicle so it doesn't go too fast and hit the vehicle in front of me. I have to use my brakes a lot more right after accelerating.”

“My car is a manual transmission and when press the clutch the RPM go up to 4,000 RPM and I think that is the acceleration pedal may stay stock because doesn't do it all the time.I used my car everyday to go to work I really treat the car good only have a 25.000 miles on it.”

“Driving on the highway I heard a knocking in the engine. The check engine light came on. I took the vehicle to get the light checked for a code and was told the knock sensor needed replacing. Took the car to the dealer I purchased it from and dealer said there was no code and no history of a code so they could do nothing about it after I told them how to replicate the knocking. Dealer released the car. Two days later while driving on the highway the light came back on and the engine continued knocking. …”

“I have previously reported this. My 2012 Hyundai Accent with automatic transmission often surges. On the highway, it will continue at same speed or even accelerate when I lift my foot. Stopped in traffic, it will lurch forward when the car ahead of me moves and I lift my foot. When parking, it will red-line when I shift to neutral or park. This does not happen all the time, but happens throughout certain trips, from when I begin to drive, until I exit the car. I have been to the dealer for evaluation, they say there are no codes, so it didn't happen. …”

“The accelerator pedal sticks in the down position and doesn't immediately return to the fully disengaged position. This happens anytime I press down on the accelerator pedal, especially in cold weather. The engine stays reved for up to 3 seconds after I take my foot off the pedal and I can feel the pedal slowly move back up. Sometimes I have to pull it back up to the neutral position. Occasionally, the accelerator pedal will stay engaged even after I press the brake, causing the car to lurch forward when I release the brake pedal. …”