2020 KIA FORTE Engine Problems

The crankshaft position sensor keeps going bad and it make the forward collision trigger and it loses power and the dash stops working and causes the car to shut off

The lane assist malfunction and periodically jerks. Very unsafe I no longer use this feature . To keep control of the vehicle. I never got it inspected. As the lane assist was in use and it would jerk it would alert me of a lane departure . I mention this to include every known problem I have experienced with the vehicle. The problem That brought me here. Is my engine light came on today. Leading up to this. I have had oil leaks since I've owned the car. Im adding oil in between oil changes due to it being low. In the beginning it was a hint of smell of gas in the oil. I was informed to do more frequent oil changes. Over time the smell of gas grew stronger . No Indication to a problem then. Now the smell of gas is prominent in the oil. When the dip stick is checked its always needing more oil and smells of gas and has blackness like burning in the oil. Now there's a check engine light on. And everything I looked up says to discontinue driving the car. I am having a mechanic look at it with a code reader.

I own a 2020 Kia Forte LXS with approximately 136,000 miles. The check engine light came on with code P0420 (“catalyst system efficiency below threshold”), and an Express Oil Change & Tire Engineers location confirmed the catalytic converter is failing. The back pressure was measured and is within spec but slightly elevated, showing the part is deteriorating. I was also told my O2 sensors are burned due to the failing catalytic converter. This failure affects drivability and safety: the vehicle sometimes struggles on acceleration and hills, and I feel vibrations through the gas pedal. Because I commute 50 miles each way to work on the interstate, sudden loss of power would put me at risk in high-speed traffic. I have learned Kia and Hyundai vehicles from other years/models (including the Forte) have had recalls and extended warranties for premature catalytic converter failure and excessive oil consumption, but Kia has not yet extended coverage to the 2020 Forte. This appears to be the same issue. The vehicle has been inspected by Express Oil Change & Tire Engineers, and the quoted cost for replacement is $3,000–$3,600. This should be investigated for potential recall or warranty extension to include the 2020 model year.

The engine light went on and engine is burning oil mechanic said it needs to be rebuilt it’s currently under financing from kia and not sure if they cover this

The contact owns a 2020 Kia Forte. The contact stated while driving approximately 30 MPH, the Forward Collision Avoidance camera activated, causing the brakes to stop the vehicle unintendedly. The Forward Collision Avoidance system activated without a vehicle or person nearby. The contact pulled over to the side of the road and waited before restarting the vehicle. The vehicle was started with the check engine warning light illuminated with abnormal gurgling sounds coming from the engine compartment. The vehicle was taken to a certified mechanic who diagnosed that the cam shaft position sensor and the ABS system had failed. The vehicle was not repaired. The dealer was contacted and informed of the failure. The dealer diagnosed the vehicle with engine failure. The Forward Collision Avoidance camera failure was not diagnosed or replaced. The vehicle was not repaired. The manufacturer was informed of the failure. The failure mileage was approximately 103,069.

Mileage: 103,069

My vehicle lost 3 quarts of oil between oil changes somehow. The engine is bad now and has to be replaced. Never did a check engine light or oil pressure light come on to alert me that my car was burning oil somehow and the oil was low. At the oil change a few weeks ago the techs underneath my car called out that everything was normal under the car. No leaks, no oil spots anywhere. My safety was put at risk because I drive a very busy highway to work every day. If I had been in heavy traffic at the time of engine failure I could have gotten into a wreck or caused a wreck. If a check engine light or low oil pressure light had come on, this whole situation could have been completely prevented. The issue has been confirmed by the dealership on 5/7/25.

The contact owns a 2020 Kia Forte. The contact stated while driving 65 MPH, there was white smoke coming from the engine compartment. In addition, the contact stated the vehicle began to lose motive power and the oil warning light illuminated. The vehicle was able to restart but the contact stated the accelerator pedal would not function properly after the vehicle was parked. The vehicle was towed to the dealer for diagnosis. The contact was informed that the drain plug was missing and had caused the oil to leak out from the engine. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 75,709.

Mileage: 75,709

The contact owns a 2020 Kia Forte. The contact stated that while driving at undisclosed speeds, the vehicle stalled. The vehicle failed to restart. The check engine warning light was illuminated. The vehicle was taken to the local dealer, where it was diagnosed that the engine needed to be replaced. The vehicle was not repaired. The vehicle was towed to the residence. An independent mechanic informed the contact that the battery needed to be replaced. The battery was replaced, and the contact was able to continue driving. The vehicle was taken to another independent mechanic, who stated the failure was due to the transmission pressure. The contact stated that there was an abnormal knocking noise after restarting the vehicle. The vehicle was towed to the local dealer but was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 31,000.

Mileage: 31,000

I leased car 2020 Illinois. No problems. I had car transported to in 2022 to Los Angeles, and after a few months, the car would check engine light ALL lights I believe, and car suddenly stops and dies out at each stop light. This happened 3 times and frightened me. It happened every couple months and the repair people NEVER put notes on the repair invoice!! About exactly why I was bringing car in for repair, even if nothing on computer showed up, almost like the defect was bypassing (tricking computer) inspection. Have to restart and it would lost all power seconds later and on rainy days, passenger floor soaked. NOTHING on repair places nor dealership would show any problem to fix?? However, when brought back to Illinois, no problem with car, so far since January. So car did not like California OR their emission gasoline no good. Plus even in heavy snow and rain last 3-months in Illinois, passenger carpet never got wet.

While driving I heard a pop then the lights on my dash lit up my car came to a stop i.e cut off tried to start back up the engine caught fire burned the whole front end off total loss

I PURCHASED THE 2020 KIA FORTE LAST APRIL 2020. THE TRUNK LATCH WOULD NOT OPEN TRUNK, REPORTED, SERVICED IT STILL PRESENTED TIGHT LEVERAGE FUNCTION DURING STABLE PARK POSITION. THE COMPUTER SCRAMBLED THE 1ST OR 2ND WEEK OF OWNING IT DURING MY EARLY MORNING HIGHWAY TRAVEL THE COMPUTER SCRAMBLED MORE THAN ONCE. I CONTACTED KIA- THIER RESPONSE WAS NOT HELPFUL TO THE NEW CAR MALFUNCTION. IT HAPPENED MORE THAN ONCE. THE LANE DEPARTURE DID NOT WORK AT DIFERENT PERIODS IN TIME; WITHIN THE YEAR I REPORTED TO KIA. THE WINDSHIELD CRACKED DURING FIRST FROST. KIA CLAIMED ROCK CHIP. I HAD JUST SERVICED CABIN FILTER AREA, KIA RELENTLESSLY ASSUMED ROCK CHIP, I BELIEVE DEFECTED GLASS. THE FIRST FROST IT CRACKED 2ND FROST WITHIN 2WEEK TIME OR LESS SPLIT CRACK ACROSS WINDSHIELD. THE GAS AND MILAGE WERE NOT STABLLY OPERATING WAS OUT OF SYNC DURING HIGHWAY TRAVELS. I NOW FOR THE LAST WEEK NOTICED A NOISE IN MY CAR ENGINE WHEN IN PARK TURNING IT OFF. I AM UNHAPPY WITH MY PURCHASE AND THE KIA DEALERSHIP I PURCHASED IT FROM. I HAVE PICTURES OF REPORTED DASH COMPUTER MALFUNCTIONS, AND AN UNWILLING DEALERSHIP TO ASSIST WITH MY VEHICLE. I AM CONCERNED WITH MY SAFETY, MY PASSENGERS SAFETY, AND SAFETY IN MY FUTURE DRIVE. I PUT DATE OF APRIL 20, 2020 BECAUSE IT WAS ROUGHLY WHEN MALFUNCTIONS BEGAN TO OCCURE. THE TRUNK LATCH IMMEDIATELY 4/10/2020 OR AT PURCHASE DATE UPON ARRIVING HOME.

Mileage: 89