2012 Hyundai Veloster: sudden loss of power

Filed Oct 28, 2022 · Acceleration · OH

On 08/17/2022, we had to have the car towed to the dealer for a very concerning issue. My son was driving down a major highway (middle lane) and as he attempted to accelerate, the car was not responding. It was like the car went into neutral and the rpms went up, but there was absolutely no acceleration. It was scary as he had traffic all around him and needed to get over to the breakdown lane. He finally got over and the car would not move forward or reverse. The check engine light also came on, so we had the car towed once again to the dealer. Once there, they looked it over and said it needed a new MAP SENSOR. They also stated that they thought the problem was with the DCT CONTROL MODULE. They said that they needed to do a RETEST of the DCT CONTROL MODULE and followed through with that. When I went to pick up the vehicle, I was told that the car was working properly, but they couldn’t be sure that it wouldn’t happen again. If the same thing happened again then they would need to replace the DCT CONTROL MODULE. After paying $800 to have my car fixed, I didn’t feel very hopeful. It makes you pretty anxious to drive a car that just loses power out of nowhere. Under normal conditions, losing acceleration on a major highway could severely affect the driver’s ability to control the vehicle and maintain a safe speed in traffic. This could cause a major accident. Here we go again. On 09/23/2022, my son was driving down the highway when he suddenly lost power again. The same scenario played out once again, only this time he didn’t have much room to pull over. He was forced to pull over in an accident-prone area of 77 South with a cement barrier next to him. Soon, he saw police lights behind him. The police officer was very concerned with getting the car towed quickly and showed my son the skid marks on the pavement from a previous accident. Now the dealer is saying its the transmission and transmission control module. This car is very unsafe to drive.

Filed Jan 2, 2022 · Electrical, Engine · TN

I had a recall done on my car, and driving 10 mins from the shop it lost power. I called the shop they had me pull over and try shutting off the car and starting it back up which didn't work so i was told to drive back if i can make it , it took 25 mins with the throttle going up and down. They had it for about a hour or two and said it was the oil being low 2 qts. But, they put 3qts in, they got it working and 2 weeks later it did the same thing, I called and took it back they said it was the spark plugs and I had to pay for that. I explain to them I had no problems until the recall was done and they say the recall was good. So now we 2 months out and the thing which the recall was for is completely broken (Throttle /ECM). I was on Christmas vacation when it went into protection mode and I couldn't drive it. It showed no codes until I had mechanic come change out the throttle Body but it still doesn't work because these codes P0222 and P0123, which is the throttle position pedal. I had to tow the car back because that's not a regular carried part for auto parts stores. What's the next steps on getting this fixed because Hyundai refuse to fix it.

Filed May 21, 2019 · Engine · 80,754 miles · NC

I was driving home then started hearing a knocking noise coming from the engine. That's when I felt my car to lose power and start to decelerate. Once it stopped it shut off , and all of my light on my dash board was on. The battery light, oil light, eps light. I went to open the hood and it smelt like something was burning. After about an hour of waiting the engine still wasn't turning over. I left my car on the side of the road at an apartment complex.

Filed Apr 12, 2019 · Engine, Transmission · 90,000 miles · NY

While parked, car starts hard then will not shift, despite the dash saying it's in drive. Have to shut off, wait, then restart. At stop signs, car will stall then not restart. Once restarted, car will not shift. Need to shut off then restart repeatedly until it shifts. While in motion going straight on the highway, car will act as if it's lost engine power and then stall completely. Again, car will not start, and once it starts it will not shift. Again repeat the turn on/off process until it shifts. Has happened more and more frequently but dealer cannot give me an answer. This car is very unsafe to me and others on the road with it's unpredictability.

Filed Oct 27, 2017 · Engine · 60,600 miles · IL

While driving my car on the highway, I suddenly began to hear a loud knocking sound coming from under the hood. My car began to lose power and I was unable to accelerate. During my attempts to get my car to the side of the road the car then began to shack seconds later followed by an explosion that filled the car with smoke as it came to a complete stop in the middle of the highway. Thank god passer bys stopped to help get the car to the side of the road before anyone was injured.

Filed Apr 25, 2017 · Acceleration, Engine · 50,000 miles · VA

Tl* the contact owns a 2012 hyundai veloster. The contact stated that the headlight bulbs burned out often. Also, while idling at a stop, the vehicle jerked, lost power, and shut off without warning. The vehicle was able to be restarted. The contact also stated that the vehicle accelerated automatically in intervals and the engine made a knocking sound. The vehicle was taken to a dealer where it was diagnosed that the vehicle operated as designed. The manufacturer was made aware of the failures and referred the contact to the dealer. The failures were not remedied. The failure mileage was approximately 50,000.

Filed Oct 17, 2016 · Transmission · 67,000 miles · GA

Vehicle was traveling on highway when loss of power to the pedal occurred and drive symbols began flashing with loss of power in acceleration and slipping gears completely skipping 2,3, and 6 gear. Stopped vehicle and realized there was also no reverse. Had vehicle told to dealer and was told it was a computer glitch. Issue resolved itself. Started driving on highway again and issue returned. Took to different dealership and was told it was a transmission sensor switch which was not covered by warranty and cost at least 800$ to repair. But. There are several sites that occur with this issue on multiple vehicles.

Filed Mar 5, 2013 · Acceleration, Electrical · 250 miles · WA

Purchased car on 5/5/2012 with 6 miles on it. Within less than a week and 200 miles the transmission began clicking. Took it into hyundai and they stated it needed a new transmission. After 2 1/2 weeks the transmission was replaced as hyundai refused to give me a different car. Since then the car cannot accelerate, sounds "clunky" and when going at low speeds sounds like the gear isn't engaging and sounds/feels like it would if you released a clutch too early. Car loses power and sounds like it's about to die. A hissing and rattling sound under the hood happens as well. After taking it in to dealer, dealer states they could not find the sounds or noises or loss of power I was having. Rpms rev really high before engaging in first gear. Dealer still won't do anything since they can't diagnose it. I have almost been in multiple accidents for failure of power and car not accelerating. Takes about 3-5 seconds before it goes. Brakes grab too easily as well. Loss of gas mileage (around 6-7 mpg) was reported to dealer but dealer told me it was due to "winter gas." I can understand 2-3 mpg difference but 6-7 is too much. Car has also been in the shop for a week for the car alarm going off constantly for no reason. A piece of the windshield plastic also fell off for no reason when car was 3 weeks old. Dealer duct taped that part down until a new part could be ordered.

Filed May 22, 2012 · Steering · 1,230 miles · CT

Eps indicater light came on and lost power steering. Pulled over, turned the engine off and restarter after a few seconds. Steering back to normal. This happens usually the first start of the day. Car going to the dealership to see what the problem is. Only had the car three weeks.