KIA K5 Reliability by YearBest & worst years, problems & recalls — NHTSA data

The contact owns a 2026 Kia K5. The contact stated that after starting the vehicle, the engine immediately started to rev extremely high, and smoke was coming from under the hood, and the front passenger side lights failed to illuminate. There was a sizzling sound coming from the engine compartment, and the hood was very hot to the touch. The contact turned off the vehicle, and a tow truck company was contacted. The contact stated that while raising the vehicle onto the tow truck, hundreds of shards of black plastic fell from the vehicle onto the driveway along with a pink colored liquid. The vehicle was towed to the local dealer. The cause of the failure was not yet determined. The manufacturer was not yet contacted. After the failure, the contact received several engine failure codes on the Phone App. No further information was available. The failure mileage was 110.

Low oil engine warning. Oil level is okay. Car has 80 miles on it, total.

The car only has 150 miles on it and I bought it 3 days ago and there is a LOW ENGINE OIL warning on the dash.

My vehicle is 3 months old with only 3300 miles on it at the time this happened. I was driving on the interstate near on Saturday, January 17th, 2026. It was reasonably cold outside, and of course I had the heater on set to 70. My panoramic moonroof glass was closed, but the shade was open. My glass randomly exploded outward leaving a major hole in the glass. Glass shattered and sprinkled inside the vehicle while I was driving. After pulling over to identify what happened, I realized that the moonroof exploded outward from the vehicle.

Had the sunroof sunshade open, and the sunroof has exploded spontaneously out of nowhere. Since i had the sunshade open, the glass pieces went all over me and my wife, it had first scared us cause it was like a gun being fired off in the car, and i could've gotten into an accident. No. the car hasn’t been seen by the dealership. Theres has been many reports about this issue, me personally im in a group and theres a few people on there that this has happened to. No warning before it happened, there was no sign of impact. looks like it just spontaneously exploded outwards.

On XXX, while traveling to [XXX], I experienced serious fuel system problems after filling my vehicle. The fuel gauge fluctuated from full to empty, and a loud pop caused the rear seat, where my two children were sitting, to lift upward. The vehicle would not accept more fuel despite the empty reading. I called AAA, but before the tow arrived, the gauge returned to normal, so I continued my trip. After returning to [XXX], I checked my Kia app and discovered active Recall SC356 describing a damaged check valve that could cause fuel tank expansion, rear seat lifting, and abnormal fuel gauge behavior—the same symptoms I experienced. On XXX, I brought the vehicle to The Kia Store in Louisville, advised them of the recall and my symptoms, and requested an inspection. Service Advisor Sidney Daub stated the issue was caused by a scratched muffler, not the recall, and no recall repair was performed. Relying on that assessment, I continued driving. From XXX, while traveling to [XXX], the same problems returned. Smoke came from the fuel tank area, fuel sprayed onto me when I opened the fuel door, and the vehicle became disabled and required towing home. I then took it to Kia Store East on June 10. There, [XXX] advised the failure was related to Recall SC356, and Haley informed me Kia Consumer Affairs would contact me. After weeks of communications, Kia advised on XXX that the vehicle was unrepairable and requested ownership documents. On XXX, Kia offered only to satisfy my loan balance through a buyback. I believe the dealership's failure to properly diagnose & repair the recall condition in April directly contributed to the later failure, safety hazards, towing expenses, and loss of my vehicle. I respectfully request that NHTSA investigate Kia's handling of Recall SC356 and the dealership's actions, & encourage Kia to consider a replacement vehicle, collateral swap, or another equitable resolution. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

As I was driving down the road, I began to hear a loud, forceful noise. I assumed it was something in my trunk rolling against the rear seats. The noise kept getting louder, and I pulled over, very frightened, as several warning lights came on, including the low fuel light and check engine light, and the fuel gauge needle was past “E.” Before the incident, the GPM reading was 400. After a while, I made it home, but the car started making loud noises and then died. That’s when I noticed my back seats were lifted. I called Kia customer service and had the car towed to the Kia dealership on Seigan Lane, where it is now. Something needs to be done about this.

The contact owns a 2022 Kia K5. The contact stated that while driving 50-65 MPH, the vehicle was jerking and came to a sudden stop. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic, and it was determined that there was an issue with the water pressure cooling system. The vehicle was taken to the local dealer, who was unable to determine the cause of the failure. The vehicle was not diagnosed or repaired. The dealer confirmed that there was no warranty coverage for the repair on the vehicle. The contact called the warranty company and informed the contact that the warranty mileage was 100,000. The manufacturer was contacted and informed the contact that the dealers were independently owned. No assistance was provided. The failure mileage was approximately 76,000.

Driving anywhere in general and which ever speed my gas would leak and smell would over take the car and I have a [XXX] and [XXX] babies. This is not the first but the third recall and this is a fire hazard I can’t imagine my car going in flames while we’re already suffering with a leaking gas smell every time we drive the car I can loose my whole family I will soon being filing a lawsuit against this I want a new vehicle completely I do not feel safe in this car with my kids at all there’s always an issue and my dealership is over 40min away to be going so often throughout the years of having this car this is completely unsafe dangerous and just out right unexpectedable and will be filing soon for a new car and compensation INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2022 Kia K5. The contact stated that while attempting to reverse her vehicle and then shifting the gear shift into drive, the contact noticed her check engine warning illuminated, and she heard an abnormal noise coming from the front of the vehicle. The contact then parked the vehicle, went into the dealer, and let them know about the failure, but they offered no assistance. The vehicle was initially taken to the dealer, where NHTSA Campaign Number: 25V794000 (FUEL SYSTEM, GASOLINE) was completed. It was after the recall was completed that it was discovered that the check engine light illuminated, and the vehicle was not driving properly. The dealer took the vehicle back and provided a loaner. The contact mentioned that the engine was replaced, and then a catalytic converter was replaced. Most recently, the fuel oxygen sensor was discovered to be melted. The vehicle was repaired; however, the failure persisted. The manufacturer was notified of the failure and informed that the recall was complete with no other assistance offered. The failure mileage was 91,000.

The contact owns a 2022 Kia K5. The contact stated that while driving approximately 45-50 MPH, the automatic front collision avoidance system abruptly engaged while there was a vehicle was parked on the passenger-side of the roadway. The contact stated the parked vehicle did not present a safety hazard to the vehicle. The dealer was notified of the failure; however, the vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 9,000.

In XXX 2026, I brought my 2022 Kia K5 GT-Line (VIN: [XXX] ) to Jim Click Kia in Tucson, AZ for routine maintenance. Fuel system testing revealed my vehicle failed inspection due to an active federal recall affecting the fuel tank/fuel valve system. Kia America confirmed the recall defect caused cascading damage to additional components, rendering the vehicle completely unrepairable and unsafe to drive. My safety was put at risk because the vehicle cannot be operated and Kia has confirmed no repair is possible. I have been without my vehicle for over two months. Kia America has proposed a buyback at $10,550 (KBB value), which does not reimburse me for the approximately $35,000+ I paid into this vehicle. I have formally requested full reimbursement under 49 U.S.C. § 30120 and the Magnuson-Moss Warranty Act, which Kia has declined. I am currently in a rental vehicle paid by Kia, which they have threatened to terminate on June 9, 2026 if I do not accept their offer. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The Integrated Thermal Management System (ITMS) in my Kia K5 GT (2.5T engine) has experienced a recurring internal electronic and mechanical fault. This is the third failure of this component. The failure causes the cooling system to malfunction, either by over-cooling or failing to cycle coolant once at operating temperature. ​Under acceleration—specifically when merging onto expressways—the vehicle suffers a sudden loss of power and enters 'limp mode' with a dashboard alert stating the engine is overheating. This creates an immediate safety hazard in high-speed traffic. When the fault occurs, the radiator fans lock at 100% duty cycle. This is a documented systemic issue with the Kia 2.5T powertrain (referenced by major automotive publications and multiple Technical Service Bulletins). ​Despite a prior Lemon Law settlement and an active 100,000-mile powertrain warranty, the manufacturer refuses to acknowledge this as a powertrain or emissions defect, attempting to charge out-of-pocket for a component that prevents the vehicle from passing state emissions and safety inspections."This was also cited in a 2023 issue of car and driver magazine long-term test with The Kia Sorento that shares the same engine and transmission combination This is a third time that part has failed for me with others had to replace that part over seven times The first time it happened it was at 8,000 mi it did not get fixed until 30,000 mi The second time it happened was at 51,000 mi The third time 75,000 mi

I was driving on the highway and my check engine light came on. I pulled over and it told it was from engine control system. I had a computer connected to it and it came back the idle control system rpm higher than expected.