KIA Complaints

my sensor does not work and does not detect the gas in tank car wont start or turn on

The engine on my 2013 Kia Optima (VIN [XXX] ) failed catastrophically less than one mile after purchase. This vehicle is subject to Kia Safety Recall SC147, which addresses a manufacturing defect involving engine bearing wear caused by factory machining debris and identifies engine replacement as the remedy when failure occurs. A Kia dealership inspected the vehicle and confirmed the failure was denied under warranty. I then requested that the dealership pursue recall compliance under Safety Recall SC147. After consultation with Kia Techline and a Kia service representative, the dealership declined to submit or pursue recall compliance for this engine failure. I am submitting this complaint for recall non-compliance and request that this matter be reviewed. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2012 Kia Sorento. The contact stated that the rod bearings were knocking, and the check engine warning light was illuminated. The contact received notification of NHTSA Campaign Numbers: 15V626000 (Power Train), 23V652000 (Service Brakes, Hydraulic), and 20V750000 (Engine). The local dealer was contacted, but the vehicle was not diagnosed or repaired. The manufacturer was not contacted. The contact called the warranty company which declined the repairs. The failure mileage was approximately 106,000.

The car is at the shop. My mechanic says engine needs to be replaced. It failed rapidly, in one evening, it started running ruff and check engine light came on. It stalled more than 5 times. The car stalled in an intersection and had to coast to a stop to restart. The next morning drove to O'reilly's to get the engine code. They identified the code as engine block. When leaving O'reilly's the car stalled in middle of the street and was almost hit by Semi tractor trailer that stopped barely in time. The mechanic reported finding metal shaving in the oil when diagnosing the problem. There was not any warning lights or issues before that evening outing. We would love to have the manufacturer address this issue. Engine failure at 52,800 miles on a 2020 KIA Soul needs to be addressed.

Summary of Safety Defect: While my 16 year old daughter was driving our 2014 Kia Soul in December 2025, the car suddenly lost power in traffic and would not go over 20 mph; the check engine light came on and the vehicle entered limp mode. The sudden drop in power created a high anxiety, hazardous situation for my daughter, who had only had her license for a week, during rush hour traffic. The vehicle was unsafe to operate and had to be towed. Details of the Incident: Diagnostic trouble code P1326 (Knock Sensor Detection System) was confirmed by the Kia dealership. P1326 is part of Kia’s known engine defect population and is tied to safety related engine failures. The dealership documented oil consumption, oil fouled spark plugs, and compression readings below Kia’s minimum specification on all cylinders. The dealership concluded in writing that engine replacement is required. Despite this, Kia denied warranty coverage based solely on a bearing clearance test, without completing the full diagnostic process required under the KSDS settlement. The vehicle remains unsafe and inoperable. Why This Is a Safety Issue: The sudden loss of power and inability to accelerate above ~20 mph created a dangerous situation for my daughter and surrounding traffic. This is a known defect pattern in Kia vehicles covered under the KSDS program. The failure occurred without warning and could have resulted in a collision. Requested Action: I am reporting this because Kia has not responded to my two complaints nor properly addressed a safety related engine defect that is already part of a national settlement. The incomplete diagnostic process and denial of coverage leave the vehicle unsafe and unusable. I request that NHTSA review this incident as part of the ongoing safety concerns involving Kia GDI engines and P1326 related failures.

While driving, the vehicle experienced a sudden loss of engine power and entered limp mode. The check engine light began flashing and the vehicle had very limited acceleration, creating a safety concern when driving in traffic. The vehicle was towed to a Kia dealership for diagnosis. The dealer retrieved diagnostic trouble code P1326 (Knock Sensor Detection System – range/performance). During inspection, the dealer found metal contamination in the engine oil and oil control valves and advised that the engine has internal damage and requires replacement.

I am submitting a safety-related complaint regarding my 2025 Kia Carnival with approximately 4,000 miles. The vehicle experienced an electronic system failure that required diagnosis by an authorized Kia dealership. The dealer has informed me that the issue is due to a failed Body Domain Controller (BDC), which must be replaced. The vehicle is currently not safe or suitable for normal operation and will remain at the dealership for at up to one week, with the possibility of a longer delay depending on parts availability. The vehicle has very low mileage and has been maintained normally. A failure of a central body control module at under 4,000 miles raises serious concerns regarding vehicle reliability, quality, and potential safety implications, as the Body Domain Controller manages multiple critical vehicle systems. Additionally, during this repair period, the dealership has provided only a Kia K5 sedan as a loaner vehicle. This is not a comparable replacement to a Kia Carnival minivan and does not adequately meet the functional needs of my household, which relies on the Carnival’s passenger and cargo capacity. While this is not a safety issue itself, it compounds the impact of the vehicle failure. I am concerned that this failure may indicate a broader defect affecting other 2025 Kia Carnival vehicles and request that NHTSA review this issue for potential investigation, recall consideration, or further monitoring.

I have a 2024 Kia EV6 I took my car in for an unrelated repair. Tech found an airbag code that I asked to be investigated. The airbag wiring harness was damaged and needed replacement. The repair was quoted as $6600. The dealer claimed that this was from rodent damage but the photo evidence does not look like rodent damage. It looks like the wire was pulled out of the harness. Of note, the 2024 Kia Niro and 2024 Kia Telluride have similar active recalls. Please see NHTSA Recalls 25V-024 and 23V-035.

Put gas in it and out the blue would go pass 30 rpm we never had any issues with it I work on cars for a living I have spend over 3000 in new parts now I got it tow to Firestone they telling me it’s something wrong with my engine cylinder two and four not getting any power they told me it was bad bargin or piston I don’t know how it happens because we kept the car up to maintenance

Got a Check electrical system error, car reduced speed and 12v battery stopped charging. Car was towed to the dealership and they confirmed that the ICCU needed to be replaced.