2019 KIA OPTIMA Power Train Problems

The vehicle experienced a sudden engine failure one day after undergoing a manufacturer emissions/service campaign at an authorized dealership. Prior to service, the vehicle operated normally with no warning lights, knocking, or drivability issues. After the failure, the dealership denied coverage and declined to inspect the engine oil. The vehicle was towed for an independent inspection, which found metal shavings in the engine oil, indicating internal mechanical engine failure. The sudden failure created a safety risk due to unexpected loss of engine function. The issue has been confirmed by an independent service center and the vehicle remains available for inspection. No warning lamps or symptoms were present prior to the failure.

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.

Unknown needing help with new purchased car. Bought this car October/2025 with 93k on engine. Already been to dealership i Bought it from to have current issues im dealing with checked out and they only listen to it and said it was injector ticking clatter. Since then ive seen white smoke and the car burning excessive oil. I am adding oil to the car every 2-3 days. Still noticeable smoke and smell of burning oil. No recall on this vin. It seems as if this is a huge problem with this engine. Please help

My vehicle is consuming oil excessively. I have to put a whole quart of oil in my vehicle every 2 weeks. I am adamant about getting regular maintenance oil changes as well. My car had to be towed to a local auto shop due to the engine stalling and accelerator not working. They had to replace all 4 coil packs and 4 spark plugs due to dark, tarry oil covering the parts. The repairman told me my engine was at risk of failing, and that the repairs he did would not last without a new engine. I am worried about the car stalling or failing while driving, which puts an accident occurring at greater risk. My complaints resemble symptoms tied to previous Hyundai/Kia engine recalls. I am requesting investigation and manufacturer action related to this issue.

•Rapid oil loss — topped off every 1–2 weeks •Engine misfires, check engine light •Spark plug fouling and performance loss •Repeated advice to “just refill oil” and “wait for failure” •Unsafe to drive, especially as a working single mom

This vehicle is a lemon. It is a 2019 with 81,000 miles. How in the world does the engine start knocking when i have consistently, kept up with the maintenance on this vehicle. If i do not hear something soon im weakening legal action. Since May 18TH i have been without a car.i am a single mom and this is so difficult. Mind you it was towed July 5th from where it broke down on me.

Subject: Complaint Regarding Excessive Oil Consumption and Engine Hesitation in 2019 Kia Optima SX To Whom It May Concern, I am writing to formally lodge a complaint regarding my 2019 Kia Optima SX. Despite meticulous maintenance and care, I have been experiencing significant issues with the vehicle that are concerning, especially considering its relatively low mileage of only 107,000 miles. The primary issues are as follows: 1.Excessive Oil Consumption: My Kia Optima SX has been burning an excessive amount of oil, necessitating frequent top-offs well before the recommended oil change intervals. This is not only inconvenient but also raises serious concerns about the long-term health and reliability of the engine. 2.Engine Hesitation: The vehicle exhibits extreme hesitation during acceleration. This hesitation occurs sporadically, making it difficult to anticipate and presenting a potential safety hazard, especially when merging onto highways or attempting to overtake other vehicles. These issues are unacceptable for...

I am writing to bring to your attention a critical safety issue with my 2019 Kia Optima SX 2.0 GDI Turbo, which has accumulated approximately 103,000 miles. This vehicle has recently developed several serious problems that I believe pose significant risks to both my safety and the safety of other road users. Firstly, my Kia Optima has been burning an excessive amount of oil. Specifically, it consumes over 5 quarts of oil within just 2,000 miles of driving. Despite thorough inspections, even from Kia Dealers there are no visible oil leaks, making this issue even more perplexing and concerning. Moreover, the vehicle has begun to shake violently while driving on the highway, which has led to a substantial loss of power in the middle of traffic. This unpredictable loss of power is extremely dangerous, especially at high speeds, as it compromises my ability to maintain control of the vehicle and...

Dear National Highway Traffic Safety Administration, I am writing to file a formal complaint regarding numerous premature defects in my 2019 Kia Optima, which have led to serious safety hazards and compromised driving conditions. Firstly, the premature valve cover gasket leaking has resulted in dangerous fumes infiltrating the cabin, posing a significant risk to my health and safety as well as that of any passengers. This issue has not only caused discomfort but also raised concerns about potential long-term health effects. Additionally, the premature turbo gasket leaking is a further cause for alarm. Not only does this compromise the vehicle's performance and efficiency, but it also presents a potential fire hazard, particularly if the leaking oil comes into contact with hot engine components. Furthermore, the premature defect of the axle shafts and axle boots is a critical safety issue. This compromises the vehicle's stability and handling, increasing the risk of...

System failed to pick up speed.

Double clutch failure replacement twice in 3 years Transmission being replaced My son has same model and year of car and has had double clutch replaced once. Beat friend also owns same year and model Kia with same double clutch issue Transmission fails to engage from stopped position to starting off from dead start. Car begins to shake and shutter and the transmission kicks in When parked downhill, car will not engage into reverse and lunges forward. Serious problems with this models double clutch transmission. Internet search revealed this is problematic with Kia double clutch transmission

I HAVE A 2019 KIA OPTIMA. IN DECEMBER I WAS GOING UP A HILL AND THE VEHICLE STARTED VIOLENTLY SHAKING. I WAS PRESSING ON THE GAS AND NOT GOING ANYWHERE. I HAD TO PUT IT IN REVERSE TO BACK DOWN 2 RODS TO GET BACK TO MY DRIVEWAY. HAD IT TOWED TO DEALER AND THEY SAID THEY COULD NOT FIGURE OUT WHAT WAS WRONG. IT WAS NOT SHOWING ANY "CODES". THEN ON 02/26/2020 THE CHECK ENGINE LIGHT CAME ON. HAD IT TOWED TO KIA DEALER AND THEY SAID IT WAS SHOWING A BUNCH OF CODES. THEY SAID THEY CLEANED THE "KNOCKER" AND WAS COMMUNICATING WITH THE TECH LINE AND WAS TOLD TO CLEAR DATA AND RELEARN SYSTEM. ONCE THEY DID THAT THE CHECK ENGINE LIGHT WENT AWAY AND NO MORE CODES DISPLAYED. ON 03/07/2020 THE CHECK ENGINE LIGHT CAME ON AT NIGHT. DEALER WAS CLOSED BY THEN AND THEY ARE...

IF I SLOW DOWN THEN SPEED UP IT TAKES OFF SLOW. IF I GO UP A HILL IT PUTTS AND WHEN I DRIVE IT JUST FEELS LIKE ITS PUTTERING THE WHOLE TIME. TOOK IT TO DEALERSHIP OF COURSE THEY DIDN'T FIND ANYTHING BUT THIS IS A NEW CAR I KNOW SOMETHING IS WRONG. I JUST GOT THE CAR IN MARCH DROVE FINE NO ACCIDENTS OR ANYTHING AND IT'S KIND OF DISAPPOINTING THAT MY CAR IS LIKE THIS BUT KNOW ONE KNOWS WHAT'S WRONG.

I HAVE HAD THIS VEHICLE FOR A LITTLE OVER TWO MONTHS. IT CURRENTLY HAS 1600 MILES ON IT. THE TRANSMISSION WAS REPLACED ONCE AND I AM STILL EXPERIENCING STUDDERING AND SHAKING. HAVE ANOTHER APPOINTMENT ON 3/15. EVEN HAVE KIA CUSTOMER SERVICE INVOLVED.