KIA Complaints

There is an issue with the fuel pump where it would stall or shut off while driving or at a stoplight

I own two Nuna RAVA car seats, and both have developed unraveling/tearing of the two-point harness buckle/strap between the child’s legs. One seat had noticeable tearing, which prompted me to closely inspect the second seat, where I found the same area beginning to unravel. I contacted Nuna and was initially advised to use glue or tape on the damaged area. After expressing my safety concerns about that, Nuna acknowledged that the damage is a safety hazard and instructed me to discontinue use of both seats. However, they refused to repair or replace the seats and instead offered a 10% discount toward purchasing a new seat. I am concerned that the same safety-critical component is failing on two separate car seats and that Nuna is acknowledging the hazard while requiring me to pay hundreds of dollars to replace the seats. Both seats are still within the expected usable life of the product. I believe this warrants investigation as a potential safety defect.

The contact owns a 2020 Kia Optima. The contact stated that while driving approximately 40 MPH, the vehicle intermittently stalled and lost automotive power, with an abnormal odor entering the cabin through the air vents. The vehicle was restarted and returned to normal operation; however, the failure reoccurred. The "Service In" message flashed on and off on the instrument panel. The vehicle was taken to a dealer where it was diagnosed and determined that the low-pressure fuel pump needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 145,000.

The contact owns a 2017 Kia Sorento. The contact stated that the vehicle experienced excessive oil consumption. The vehicle was inspected several times; however, no oil leaks were found. The contact stated that while driving 30 MPH, the vehicle shuddered, and the check engine warning light illuminated and flashed on the instrument panel. The vehicle was taken to an independent mechanic, where it was determined that there was a hole in a valve and a piston was fractured. The vehicle was then towed to a dealer, where the failure was confirmed. The dealer determined that the engine needed to be replaced and the repair was not covered under warranty. The vehicle was not repaired due to the cost. The contact notified the manufacturer via telephone and was referred to the NHTSA Hotline for assistance. The failure mileage was approximately 100,000.

My 2021 Kia Seltos 2.0L is experiencing excessive engine oil consumption between regularly scheduled oil changes. There is no visible external oil leak or oil accumulating underneath the vehicle, but the oil level becomes extremely low before the next scheduled oil change, requiring me to add oil myself. I am concerned that continued excessive oil consumption could result in inadequate engine lubrication, engine damage, engine seizure/stalling, or loss of power while driving. I took the vehicle to an authorized Kia dealership on September 1, 2026 and reported the excessive oil consumption. The dealership did not inspect the vehicle, perform diagnostic testing, or provide a repair order. I was told that because the vehicle has approximately 138,000 miles and is outside the warranty period, there was nothing the dealership or Kia would do and that diagnosis could be expensive. I subsequently contacted Kia Consumer Assistance. Kia confirmed that safety recall SC209 was completed on this vehicle in 2021. Kia advised that this vehicle is not currently included in SC336/NHTSA 25V099. Kia has opened a dealer complaint and advised that the matter will be brought to the attention of a District Manager. I am concerned because Kia has identified piston oil-ring-related problems involving increased oil consumption in certain Kia Seltos vehicles. Although my vehicle has not yet been diagnosed and Kia states that it is not included in SC336, I am reporting the excessive oil consumption and potential resulting engine failure as a safety concern. The vehicle is available for inspection.

The contact owns a 2021 Kia Seltos. The contact became aware several years ago that the transmission was not shifting properly and the vehicle was shaking abnormally. The vehicle was taken to a dealer; however, the technicians found no failure. The contact stated that on another occasion while in traffic, the engine overheated. The vehicle was taken back to the dealer, where it was diagnosed and determined that the transmission needed to be replaced. The vehicle was repaired; however, the brakes locked up while the vehicle was on a hill, forcing the contact to steer to the side of the road and turn the vehicle off. The vehicle was restarted and driven back to the residence, but the following day the vehicle stalled. The manufacturer was notified of the failures and requested that the contact return the vehicle to the dealer. The vehicle was returned to the dealer to be diagnosed. The contact was informed that the transmission needed to be replaced. The contact stated that the transmission was replaced 3 times within 3 years. The contact was informed by the service manager that the dual clutch was not ideal for driving in the mountains. The contact stated that during the first failure, there were several unknown warning lights illuminated with audible alerts to exit the vehicle. The manufacturer was notified of the failure. The dealer confirmed the transmission failure. The vehicle was not repaired. The failure continued with reduced power.

My 2015 Kia K900 developed a no-start condition and displayed a “Check Brake Fuse” warning starting July 4th 2026. The vehicle will not start, and the cause of the failure is currently unknown. It was perfectly fine. I took the vehicle to an authorized Kia dealership for diagnosis and paid a diagnostic fee. The dealership inspected the vehicle but told me they were unable to determine what is causing the problem. The dealership advised me that all recalls on my vehicle are currently up to date. However, I am concerned because this model has previously been subject to a safety recall involving the Hydraulic Electronic Control Unit (HECU)/ABS electrical system and fuse due to the possibility of an electrical short and engine-compartment fire. At this time, I do not know whether my current failure is related to that system or recall. I am reporting the issue because the vehicle is displaying a brake-fuse warning, will not start, and an authorized Kia dealership has been unable to identify the cause. The vehicle is available for further inspection if requested. I would like NHTSA to document and evaluate this failure in case other 2015 Kia K900 vehicles are experiencing similar brake-system electrical or no-start problems.

The contact owns a 2019 Kia Sorento. The contact stated that while driving at an undisclosed speed, the vehicle lost automotive power and failed to properly accelerate. The vehicle was slowly driven to the residence and stalled in the driveway. After restarting the vehicle, the engine immediately shut off. There were no warning lights illuminated. The vehicle was later towed to the local mechanic, who confirmed that the engine had failed. The vehicle was later towed to the local dealer, who diagnosed that the engine had failed and needed to be replaced. The cause of the engine failure was unknown. The vehicle was not yet repaired. While purchasing the vehicle, the contact was advised to constantly monitor the engine oil due to a known oil consumption issue. The manufacturer was notified of the failure and informed the contact that the vehicle was included in the extended warranty program. The failure mileage was 125,202.

When backing up the vehicle failed to alert, backed up into another vehicle that was reversing at the same time. Driver on both vehicles failed to see each other and ended up rear ending each other. The system did not function as no alert ever came up on the vehicle. Kia claims to have all the safety features to prevent this and yet it happened while backing out of the house.

While driving my 2020 Kia Sorento on the freeway at highway speed, the panoramic sunroof suddenly shattered without warning. There was a very loud explosive sound that startled and frightened me while I was driving. I was not aware of anything striking the sunroof immediately before it shattered, and there were no warning lights, messages, noises, cracks, or other indications that the glass was about to fail. Because I was traveling at freeway speed when this occurred, the sudden explosion/shattering of the glass was extremely distracting and created a serious safety concern. I was frightened by the unexpected loud noise and could have lost control of the vehicle. Broken glass from a panoramic sunroof also presents a risk to the occupants of the vehicle and to other motorists. The component that failed was the panoramic sunroof glass. To my knowledge, the failure has not yet been reproduced or confirmed by a Kia dealer or independent repair facility, and the vehicle has not yet been inspected by Kia for the cause of the failure. I am reporting this incident because the sunroof appeared to shatter suddenly during normal highway driving without any prior warning, and I am concerned that this may represent a safety defect.