KIA Complaints

The contact owns a 2023 Kia Sportage. The contact stated that while driving 75 MPH, the engine seized. The hybrid engine message was displayed. The vehicle was driven to the shoulder of the road and parked. The contact stated that while attempting to restart the vehicle, the vehicle started. The contact reset the instrument cluster. The contact stated that the failure had occurred while driving on a busy four-lane highway. The failure was a persistent failure. The dealer was made aware of the failure. The vehicle was taken to the dealer. The contact stated that no diagnostic information was provided. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The contact stated that the vehicle had experienced an EVAP leak in April 2026. The vehicle was at the dealer for two months and was repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 45,445.

The contact owns a 2021 Kia Telluride. The contact received notification of NHTSA Campaign Number: 26V430000 (Seats). The contact was concerned about a vehicle fire. The local dealer was contacted, but the vehicle was not diagnosed or repaired due to parts being on back order. The manufacturer was not contacted. The contact had not experienced a failure.

On June 14, 2026, the driver experienced sudden rough engine running followed immediately by a flashing check engine light. The vehicle was towed to the selling dealer, which has performed all prior maintenance. The vehicle is currently at the dealership and available for inspection. Technician notes show DTC P1326 was stored — the Knock Sensor Detection System code associated with connecting rod bearing wear on Kia's Theta II engine family. The technician performed an audible knock check only (none heard) and cleared the code. The vehicle was found approximately 2.5 quarts low on oil due to an internal turbo oil leak. The dealer's notes state the code "may be related" to low oil — hedged language, not confirmed causation. The dealer confirmed the turbo failure but has not performed a bearing clearance test to confirm or rule out bearing damage from the low oil condition. The dealer performed a turbocharger replacement. Despite a verbal commitment from the service manager that a bearing clearance test would follow, no such test was performed 40 days later. When the vehicle was declared ready, the service manager did not recall the commitment and suggested driving 40-50 miles as an alternative. Kia America opened a formal case last month and authorized a partial goodwill adjustment but no one has addressed the safety concern of the unperformed engine test indicated by the thrown code. Driving a vehicle with potential connecting rod bearing wear risks catastrophic engine failure, creating a serious safety hazard. This vehicle has a documented history of oil consumption prior to this incident. The engine has not been cleared for bearing damage following a significant low oil event and a stored P1326 code.

The contact owns a 2027 Kia Telluride. The contact stated that the front passenger’s seat unintendedly collapsed. The failure occurred spontaneously. The vehicle was taken to the dealer, who was unable to determine the cause of the failure and the failure ws not duplicated. The vehicle was not repaired. The manufacturer was made aware of the issue, and a case was opened. The failure mileage was approximately 3,600.

The contact owns a 2023 Kia Forte. The contact stated that while driving at an undisclosed speed, the vehicle made abnormal knocking sounds. No warning light was illuminated. The vehicle later lost motive power while driving with the check engine warning light illuminated. The vehicle was towed to the dealer, and it was determined that the engine needed to be replaced; however, the vehicle was not covered under warranty. The vehicle was not repaired. The contact stated that a week prior to the failure, the vehicle was taken to another dealer to determine the trade-in value, and no failures were found at the time. The manufacturer was made aware of the failure. The failure mileage was approximately 49,000.

Vehicle air conditioning sends off a vinegar like aroma. Likely condensation on coils.

vehicles transmission gets stuck in 5th gear. when it happens the problem is fixed after restarting the vehicle. no warning that its stuck in 5th gear. When pulling out into traffic the car is very slow to move and my concern is that someone might get hit when pulling out into traffic not knowing the vehicle is stuck in 5th gear since there are no warning light on. after inspection with KIA, after the first incident they said nothing can be diagnosed since it wasn't throwing a code or check engine light. when the car once again got stuck in 5th gear on our last vacation i drove it for around 2 hours or 120 miles in 5th gear to try and get a check engine light to come, one never came on but i recorded videos of it stuck in 5th gear at highway speeds and at a stop in a drive through. it's happened on 3 different occasions all on longer road trip and has never had a warning light come on. you can shift into park or reverse and back to drive and it goes straight into 5th gear again. i have videos available but are too large or wrong format to upload currently the car is sitting at our local KIA dealership and im not picking it up until something is done to remedy the issue.

While my 2025 Kia Carnival Hybrid was parked, my [XXX] child attempted to unbuckle the rear passenger seat belt to exit the vehicle. The buckle mechanism jammed completely and would not release. The seat belt retractor then switched into Automatic Locking Retractor (ALR) mode, continuously tightening and squeezing my child against the seat. Due to the jammed buckle and the aggressive ratcheting of the belt, my child was nearly choked, and I could not create enough slack to free them. I was forced to call 911, and responding emergency services had to physically cut the seat belt to extract my child safely from the vehicle." INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The vehicle's engine had previously been replaced once under Kia's Theta II engine recall/warranty program approximately five years prior to this incident. On the date of failure, the replacement engine catastrophically failed while the vehicle was in operation, resulting in the engine developing a hole in the engine block and becoming inoperable. Prior to the failure, the vehicle exhibited a "check engine" warning and symptoms consistent with connecting rod bearing failure. Diagnostic trouble codes P1326 and P0303 were present upon inspection at an authorized Kia dealership. The failure occurred at approximately 198,000 miles. This is the second engine failure on this vehicle, both consistent with the known Theta II engine defect involving premature bearing wear and connecting rod failure that has been the subject of prior NHTSA recalls and a related class action settlement. The failure created a risk of sudden loss of engine power while driving, which can pose a safety hazard in traffic. The vehicle was inspected by the authorized Kia dealership, which confirmed the hole in the engine block and the diagnostic codes noted above. The engine and related repair estimate are available for inspection upon request. A warranty claim for repair coverage was submitted and denied by the manufacturer, citing insufficient maintenance documentation, despite this being the vehicle's second occurrence of the same underlying defect.

This is a follow up of NHTSA case# 1840444. Complaint Description: Vehicle exhibited active CAN-bus communication timeout code DTC C1642 targeting the Hydraulic Electronic Control Unit (HECU). Following the official technical safety guidelines established under NHTSA Campaign 20V519000 (Kia SC197), an isolated parasitic current draw test was performed between the engine junction box positive power post and the ABS2 circuit terminal. Testing across three independent iterations utilizing a digital multimeter confirmed a continuous localized parasitic draw of 218.6 uA. This dramatically exceeds the manufacturer's maximum safety engineering threshold of 70.0 uA by over 312%. This quantified excessive amperage draw conclusively isolates an internal circuit board short-circuit condition caused by a failure of the internal HECU brake fluid seals. The vehicle presents an immediate network communication failure, brake malfunction, and thermal/fire risk. Kia Corporate must be compelled to immediately authorize an expedited, zero-cost component replacement under the active safety recall mandate.