Kia K5 jerking problems

Filed Oct 12, 2026 · Transmission · OK

From the get-go seemed to have trouble with transmission once in a while Little jerk when shifting gears, reported this, they could find nothing. It has become a lot worse. It has caused the car to shut down into limp mode with engine light on. So I had a problem from the beginning with my new car. But when they check it, they can’t find a problem. So I’m just checking to see if anybody else with this car make, model, year have reported anything the same.

Filed Sep 21, 2026 · Body, Fuel system · TX

2021 Kia K5 99K1ZRECALL Gas tank expanded and deformed the body, noticeable under back seat. Risk of gas leak or fire Kia of Mckinney service center has vehicle unrepairable SC356 KIA has case # 26282908 No symptoms, driver complained stopping was jerky CAN'T FIX CAR AND WON'T REPLACE IT.

Filed Aug 28, 2026 · Acceleration, Driver assistance · CO

I bought this vehicle less than 60 days ago and there is transmission hesitation, hard engagement in lower gears, Rough jerking shifting along with acceleration lag. Erracric shifting and phantom braking. I have taken it into the dealership I bought it at at they are not seeing anything. It currently is at another Kia dealership for the past two days. This vehicle is going to cause an accident that puts my safety and others at risk. There is no warning lights that come on. I have done my research and there has been other complaints from other consumers having the same issues. I do have video of in town driving but have not been on the highway

Filed Jul 27, 2026 · Engine · 76,000 miles · TX

The contact owns a 2022 Kia K5. The contact stated that while driving 50-65 MPH, the vehicle was jerking and came to a sudden stop. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic, and it was determined that there was an issue with the water pressure cooling system. The vehicle was taken to the local dealer, who was unable to determine the cause of the failure. The vehicle was not diagnosed or repaired. The dealer confirmed that there was no warranty coverage for the repair on the vehicle. The contact called the warranty company and informed the contact that the warranty mileage was 100,000. The manufacturer was contacted and informed the contact that the dealers were independently owned. No assistance was provided. The failure mileage was approximately 76,000.

Filed Oct 28, 2025 · Engine, Fuel system · VA

10/25 I was traveling, and my car sudden loss of power, while in traffic.. almost causing accident. 10/28 I was traveling on interstate, and my car sudden loss of power, while in traffic.. almost causing accident. This is ridiculous.. When I hit the gas sometimes, feels like it fluttering and jerking. I’ve reported multiple times over the years and this one having hesitation when driving this car. Manager drove it was concern, mechanic talking about it’s the way the car supposed to be.

Filed Oct 18, 2025 · Brakes, Electrical · OH

I noticed my car jerking from a stopped position a few months back it wasn’t consistent but it happened I figured it was just a powerful motor however last on October 7th I was driving down the street to go to the dealership and my car lost power I had to pull over my son was panicking he’s just little and I sat there and luckily it started after a few minutes and I went to the dealership and they blew me off saying it has electrical issues. WELL I went to Oreillys and they tested my battery it was good but only getting 10 % charge to it which he said was odd so he said to try and drive it some and come back he wlll see where it’s at. I did that and he said oh wow you’re back up to 100%! Well that was the 7th now last night I’m driving around Tallmadge ave and BOOM everything lit up I lost power steering my lights shut off completely and it was close to midnight! It was insane I am luckily a very good driver because I almost went right off the road!

Filed Oct 5, 2025 · Transmission · WI · 1 injury

The K5 - as soon as I began driving it at 0 miles, I noticed it shifted at lower speeds extremely hard. Head-jerking hard during the first drive of each day at speeds below 25mph. Once the vehicle warmed up, the problem would go away and wouldn't appear until the next day - after the vehicle cooled down completely. I thought, maybe there was a break-in period. So I drove it for about 250 total miles. At that point, I made a service call and brought it into the dealership. I left it overnight. Explained all of the symptoms. The next day, one of your service advisors test drove the vehicle. I was called and told they were unable to reproduce the problem and that I could come pick up the car. I was told by your service advisor that the problem "could be rats or rodents in my garage". I was greatly taken back by that suggestion because I live in an upscale neighborhood, with a highly secured finished garage and have never had any rodent problems. I mentioned that to the service advisor, and she said "You'd be surprised how many people tell us they don't and we find out they had a rodent in their garage". I couldn't believe I was having a conversation of such sorts. I laughed it off and took the vehicle home, quite disgusted that it was suggested that this hard shifting might be "My problem because of rodents". I explained this to [XXX] that evening and couldn't believe that was even brought up given the situation. The very next day, the vehicle did the same thing at about 20 to 25 mph, and extremely hard, head-jerking shift on the first drive of the day. I have now driven the vehicle 3000 miles since new. I have tried driving in several different driving "modes". I've tried, Sport, My Drive, and others, but it doesn't seem to help. Every time I get in my car at O'hare after flying a trip, I look forward to driving a brand new car home, but left extremely disappointed when I drive away from the employee lot only to have an extremely hard, head-jerking shift for the first INFORMATION REDACTED PURSUANT TO THE FREEDOM O

Filed Sep 4, 2025 · Transmission · WI · 1 injury

Transmission has extremely hard shifting if vehicle sits for more than 24 hours. After the vehicle is parked, inside garage, or outside, the first drive of the day has an extremely hard shift of the transmission on the first shifting of the day. The shift it so hard, it jerks the entire car and jolts me in my seat. The remainder of the drive and day, the hard shifting does not occur. Took the vehicle into dealership where purchased at 1000 miles and left it with them for 2 full days. Unsurprisingly, they said they were, "Unable to reproduce". The next day, the vehicle had the exact same problem. I have close to 3000 miles on the vehicle and the transmission continues to do the exact same thing every time I drive it. It is terrible for a brand new car. It doesn't matter which "Drive mode" the vehicle is in. The dealership also tried to reset the ECM. But no luck. My neck and back have been sore from the hard shift events too.

Filed Aug 25, 2025 · Fuel system · 85,000 miles · GA

The contact owns a 2022 Kia K5. The contact stated that while driving at 43 MPH, the vehicle made an abnormally loud booming sound. The contact's daughter, who was occupying a rear seat, screamed out because the rear seats had suddenly risen. The contact pulled over to the side of the road and inspected the vehicle. The check engine and the low fuel warning lights were illuminated. The contact's wife met the contact and picked up the children. The contact stated that upon resuming driving, the vehicle was jerking violently, and the fuel gauge level lowered significantly. The vehicle was taken to an independent mechanic, where it was diagnosed with an EVAP system failure. The vehicle was driven to the residence. The vehicle was then towed to the dealer, where it was diagnosed, and determined that the fuel tank had expanded. The vehicle was not repaired. The manufacturer was notified of the failure and offered to repurchase the vehicle. The failure mileage was approximately 85,000.

Filed Aug 12, 2025 · Fuel system · KS

Fuel consumption jumped then car began jerking shortly after engine failure