Kia Optima harsh shifting problems

Filed Jul 13, 2026 · Steering · WA

Steering coupler issue. When turning the steering wheel. It is making a clunking noise even when in park and making it feel not smooth to turn the wheel either way. Very distracting and awkward when driving. When speeding up you can feel the issue with the steering coupler more. You can feel the noise and clunk feel when driving over bumps and turns. There has been a campaign/recall for other makes and models. But this car hasn’t been included.

Filed May 4, 2026 · Steering · IL

Steering violently shakes at 65 mph. Steering wheel makes a clunking noise when moving side to side.

Filed Feb 5, 2026 · Engine, Transmission · AR

My fiancée and I just recently bought this car with the 1.6T-GDi engine I immediately replaced the oil even though the dealership said that he just replaced it. I put 7 quarts of oil topping off from awk consumption after I initially changed the oil filter. Those 7 quarts were added over the period of three weeks and it’s just progressively gotten worse. I’m putting a quart to 1.5 quarts of oil in here every other day. Worried about it causing total failure & being at risk of being stranded with 2 kids due to the only engine I’ve been able to find that Kia doesn’t have any recall touched base on is the GAMMA 1.6 engine. The turbo GAMMA 1.6. The N/a 1.6 was covered but it has ungodly pop/clunking backfiring sound coming from either intake manifold or valve train please help. Times are hard enough as it is to be without a vehicle due to a fault other than none of my own the dealership extended powertrain warranty isn’t being honored by Kia even though they said it would just don’t want something to happen to me or the car that’s beyond my capabilities and knowledge and ultimately result in my spouse not having a reliable and/or safe means of transportation to/from work and commuting kids as well. Thanks in advance

Filed Jan 15, 2026 · Steering · PA

I am getting a clunking in the steering column.. I feel that my vehicle may be unsafe to drive.. Upon inspection it was brought to my attention that kia had known of a problem with a coupler in the steering that goes bad..they have extended the warranty.. But only for cars purchased in certain states. I feel that this problem should be covered...

Filed Dec 12, 2025 · Engine, Transmission · WI

Brought vehicle in for Recall-SC340 Theta II 2.4L GDI ECM S/W Upgrade. After service was performed I took my vehicle back home and noticed that my down shifting was different, jolty and clunky. Prior to the upgrade my vehicle shifted flawlessly. Took my vehicle back in to have them check it out and they told me that they couldn't feel it and that the upgrade wouldn't cause that. Called Kia Corporate and filed a complaint.

Filed Jul 24, 2025 · Steering · OH

I called Kia Consumer Assistance in reference the MDPS flexible coupling. I spoke with a Kia representative named Gina. I specifically asked if this item is covered under my vehicles warranty (i gave the vin number of the vehicle to her. She stated if it was diagnosed as the MDPS flexible coupling, it would be covered. I made an appointment (it took two weeks) with Spitzer Kia at 3414 Brookpark Rd, Cleveland, Ohio 44134. The service advisor, Belinda Frost, stated, yes the MDPS flexible coupling needs to be replaced. I gave the case number from Kia, #[XXX]. She looked and said it is not covered. I told her Gina from Kia consumer assistance stated it is covered. She called Kia, spoke with "Brad" who stated I would need to pay a $93.00 diagnostic charge (car was already diagnosed with the issue) and leave the car for 24 to 48 hours. During that time, they would make a determination if it is warrantied - I believe that other person's name was Robert - the regional manager. He would need to approve coverage for the MDPS flexible coupling. The diagnosis is to turn the steering wheel while the engine is off for play and a clunking sound, which takes 30 seconds and was already done. Also note this is a hazard as the car wanders due to additional play in the steering, sometimes has a notch, taking more effort to turn the wheel slightly plus makes a metal on metal sound when going over bumps. This $10.00 part, should be mandated to replace without a time limit. I was also told it was covered by warranty by Kia consumer after giving the serial number, and that was NOT honored by the dealership nor Kia consumer when the dealer ship called in my presents. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jul 8, 2025 · Steering · OR

Steering clunks left & right, feels like steering coupler or clock spring is broken or out of wack, steering column rattles on bumpy r thoughtoads

Filed Jun 18, 2025 · Engine · 130,000 miles · NY

The contact owns a 2015 Kia Optima. The contact stated while driving 60 MPH, there was a loud clunking sound coming from the engine before the vehicle lost power. The contact exited the vehicle and pushed the vehicle to the right side of the roadway while awaiting Roadside Assistance. No warning light was illuminated. An independent mechanic was contacted. The vehicle was towed to the independent mechanic to be diagnosed, and the contact was informed that the engine had seized and needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failure but offered no assistance. The contact was referred to the federal safety agency Hotline to report the failure. The approximate failure mileage was 130,000.

Filed Feb 2, 2025 · Steering · AZ

MY VEHICLE HAS 75,583. I received a recall for 3 items and made an appointment and took the car in for the work. I noticed that their wasa slight dead spot in the centeing of the steering and asked if there was any adjustmen. I was told there wasn't but they would check it because there was a known problem thith the plastic gear in the electric motor's connection to the rack that wears out and can completely disintegrate. when I picked up the vehicle they had obviously checked it because the slight dead spot had turned into a clunk. As there was no recall they would nothing about it as the vehicle was out of warranty (10 years, 100,000 miles). Had it had a higher annual mileage it would have been replaced under warranty. My concern is that this fault may be hidden by the warranty coverage. If the plastic gear fails completely the steering could become locked or inoperable. This is clearly a well known problem as there is a youtube video showing the replacement process. This actual mechanism may be used on several other years and models. The video is here: [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jan 7, 2025 · Engine · MD

While driving 2012 Kia Optima GDI home from work, the power suddenly stopped without warning with the engine, oil, and battery lights flashing on all at once. I was unable to accelerate whatsoever, so with the momentum of the vehicle I parked safely in a parking lot. There I discovered the car would not start and would give a loud clunking sound. A mobile mechanic confirmed that the engine was seized, and I had it towed to the nearest KIA service center. They were able to also confirm it was an engine seize, but insisted KIA would not replace the engine despite a recall notice of the motor of this vehicles make and model in 2017 (SC147).