2017 Kia Optima: jerking or lurching

Filed Oct 20, 2026 · Engine · CA

3 weeks ago I had my vehicle towed to Car Pros Kia in the city of [XXX]. They said that there was an issue with the engine which should be covered under the extended lifetime warranty that KIA issued Me 2 years ago due to a recall and a system update that they required that I do on my vehicle. We did the update. We are having the same mechanical issues we did two years ago with the first recall. I reached out to Kia corporate Kia says they're reaching out to Car Pros Kia I've been in contact with both companies three to four times a week for the last 3 weeks and they both are saying they never received anything from each other. The mechanical issue is very dangerous the car jerks slows down to a very low speed around 30 Mi an hour in the middle of high speed traffic. Is very dangerous I've been without a vehicle for 3 weeks which is slowing down my process to continue to pay my bills I need my vehicle can I get any help from anyone. I feel disrespected taking advantage of and now I'm starting to fall into a financial issue because they cannot communicate with each other to fix an issue that should be covered under the warranty that they said it would and I have documents to prove it INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Mar 24, 2026 · Engine · VA

Engine issues started the third month after sales. Jerking, shaking, declining performance, metal clicking noise, loss of power while driving. Kia has been working on the car for a year.

Filed Oct 25, 2023 · Engine · 100,670 miles · TX

The contact owns a 2017 Kia Optima. The contact stated that while driving at 60 MPH, the vehicle inadvertently decelerated and then lost motive power. The check engine warning light was illuminated. The contact was able to restart the vehicle and drove to the residence. The contact stated that the vehicle jerked while driving. An independent mechanic diagnosed the vehicle at the residence and retrieved DTC Code: P1326, and the contact was informed that the engine needed to be replaced. The vehicle was not repaired. The contact stated that the knock sensor was previously replaced for the same issue; however, the failure recurred. The manufacturer was made aware of the failure but informed the contact that there was no recall associated with the VIN and that the vehicle was not covered under warranty. The failure mileage was 100,670.

Filed Oct 16, 2023 · Engine · PA

I was driving my kiaon a very busy interstate. When I was going around 65miles per hour and all of a sudden I lost all power it went from 65 miles per hour to 30 all at once when I hit the gas peddle the car went in jerks finally I got it back up to 55 but it only goes in a jerking motion and r. Very small hill u come to u lose power and it goes jerking . I thought several times I would get rear ended by the vehicle behind me I'm scared to drive this and when the car is running and you step out of the car the smell of gas is very strong and it is using a lot more gas than it mostly does . This happened to me September 20th2023.

Filed Mar 9, 2023 · Engine · 110,569 miles · KY

The contact owns a 2018 Kia Optima. The contact stated that while driving at an undisclosed speed, black smoke was coming from the exhaust pipe and the vehicle was jerking. The oil warning light was illuminated. The contact added engine oil. The vehicle was taken to an independent mechanic, where oil was found on unknown sensors and on the coils. The contact was informed that an oil change was needed, and the filter needed to be replaced. The vehicle was repaired; however, the contact stated that after starting the vehicle, the check engine warning light illuminated. The vehicle was taken to a local dealer, where it was diagnosed that the engine needed to be replaced; however, the vehicle was not repaired. The manufacturer was made aware of the failure and advised the contact to file a complaint with the federal safety agency Hotline. The failure mileage was 110,569.

Filed Apr 17, 2021 · Transmission · 23,000 miles · CA

Kia optima 2017 hybrid. 26k mileage and automatic transmission become very clunky, car jerks when shifting on any gear. Not stable driving, strange noises under the hood especially when vehicle goes uphill and even on straight road car twitches. No oil leaks from the bottom.

Filed Feb 13, 2020 · Engine · 41,800 miles · OH

Bought vehicle new from ricart kia in columbus, oh in 2018. Vehicle has 41,917 miles now. Vehicle developed flashing check engine light while driving at 65mph. Vehicle immediately reduced power to 1800-2000rpms. Vehicle will run and drive but will jerk violently at 1800-2000rpms to limit engine revolutions. Took vehicle immediately to dealership where bought. Service department confirmed dtc p1326. Dealership performed wiring inspection and replacement of ksds (knock sensor). Released vehicle to customer. Immediately upon reception of vehicle, check engine light flashes and vehicle exhibits same symptoms as stated before. Took vehicle back to dealership within 24 hours. Vehicle is inspected and dtc p1326 is discovered again. Dealership performs ecu update for ksds. Vehicle released back to customer. Within 48 hours, check engine light begins flashing, limits power, and speed. Currently scheduling 3rd appointment for same concern. Check engine light began flashing each time after being at highway speeds for roughly 20 minutes. Vehicle has been serviced only at ricart kia. All paperwork/recalls performed by dealership.

Filed Oct 30, 2019 · Acceleration · 45 miles · GA

Driving on the expressway the vehicle was slow to accelerate into traffic had to push the gas to the floor to get vehicle to move almost hit in the rear. Came to a stop light once green pressed on the gas the car went to 25mph jerked and would not accelerate over 25mph. Someone can been killed.