In February 2020, my check engine light came on after my car began to shake violently and lose speed as I drove on the city streets and highways.the serviceman replaced the coils in my car. Within a week, my car started to shake and lose speed again. I took it back to the dealership where they "fixed" it again to no avail. In early March, my car was still experiencing the same problems: Shaking violently and losing speed as I drove on both the highway and on city streets. I chose to try a different service center. They attempted to find a problem with my car by running the codes, but he said that nothing popped up on the screen. I told him that my check engine light flashes on and off when I put my foot on and off of the accelerator. He sent me on my way without fixing my car, but he told me to bring my car back into the service center without shutting off my car as soon as the check engine light comes on the dashboard. He told me that this was important, because it would help them be able to detect the issue. Within 15 minutes of pulling off of the parking lot, my check engine light flashed back on and my car began to shake and lose speed again. I turned around immediately and took my car back. They flushed out the fuel line system. Within two weeks, I brought my car back for the same thing, but the serviceman told me that he could not find any issues since the computer showed no issues. Every time I take my car into a Hyundai repair center, they tell me that they cannot detect any issues with my car, although I tell them that my car begins to shake and lose speed randomly. It is now Sept. 2020, and I am still having the same issues. I am scheduled to take my car into a new Hyundai service center in a new state. This is a dangerous car problem that threatens the safety of me and other drivers on the road. Hyundai needs to take action now!

- Ann Arbor, MO, USA

Bought this car from a dealer ship with 40,000 miles it now has 70,000 miles in between 40K & 70K it's been shaking loss of power no acceleration horrible on fuel.. I've change spark plugs ignition coil mass air flow sensor and still gives me check engine light and still saying P304 which is a misfire in cylinder 4 I just don't know what to do anymore Hyundai want a to charge me to take it in diagnosed it and I just don't have the cash for this car please help if anyone knows anything else bout this caelr thanks

- Rancho Cucamonga, CA, USA

My car will completely shut off when traveling at a slow speed. I could be cruising to a red light and the car will completely shut off. Traffic on the interstate and I need to slow down...you can bet my car will shut off. Going up a hill...my car will completely shut off. I was almost in an accident two days ago; as I slowed down to travel up a small hill to the parking garage, my car shuts off and the car behind me had to slam on breaks. Each time I have to put the car in park and restart the car. This is not a fuel saving issue as Hyundai doesn't not offer that technology/option. This is a serious safety concern as the car stalls when traffic is expected to be moving. I have now taken my car in twice for this issue.

- Riverview, FL, USA

I first experienced the problem 08/14/18 driving home from work on I295N, the check engine light came on and the car didn't want to accelerate. On 08/16/18 the same problem occurred but this time it lasted until I made it late that evening. I took it to Hyundai of orange park 08/17/18 here in jacksonville and the problem could not be duplicated. As I was driving to work 08/22/18 my car started doing the same thing only this time you could feel the vibration of the car not wanting to accelerate and the check engine would go off as I'm changing gears and soon as I am done shifting it stays illuminated.I called the service center again and she says to bring it back in for testing and they can only fix it if they can duplicate the problem. I am very uncomfortable with driving this vehicle in traffic not knowing if it will cutoff and I am hit.

- Jacksonville, FL, USA

The car hesitates, jerks and pulls at the acceleration moment when stoped. Foor instance im ligths or traffic jams. It causes a completely lost of power and terrible shaking. This happens after 20mins drive and the goes for the rest of the day, it is more evident driving in city.

- Malden, MA, USA

When attempting to accelerate after turning corner, vehicle almost stops, then surges ahead. This occurs intermittently and also when pulling away from stop light.

- Frisco,, TX, USA