2022 Kia K5 engine problems

Filed Sep 30, 2026 · Engine · AL

Verified by ASE Certified Mechanic Premature PCV valve/ Oil Separator failure. Causes codes such as P0507, P0171, P0471. This can trigger limp mode, sudden loss of speed/engine power, thus increasing the event of an accident.

Filed Sep 10, 2026 · Electrical, Engine · TX · fire

- The exact component that failed has not yet been determined. The vehicle experienced a sudden loss of acceleration while driving, followed by a popping noise, smoke, and a fire that severely damaged the vehicle. The vehicle is a 2022 Kia K5 GT-Line, VIN [XXX]. The vehicle has an open Safety Recall SC356 / the federal safety agency Recall 25V794 involving the purge control system check valve and fuel tank, which may result in fuel leakage and an increased risk of fire. The recall repair had not been performed prior to the incident. The vehicle is currently being preserved and is available for inspection upon request. - The vehicle caught fire while driving on XXX, in [XXX]. The vehicle suddenly stopped accelerating, a popping noise, and then smoke began coming from the vehicle shortly afterward. The vehicle subsequently caught fire and was destroyed. The incident created a serious risk of injury to me, other occupants, nearby motorists, and others in the area. Fortunately, there were no injuries. - The cause of the failure and fire has not yet been confirmed. The vehicle was severely damaged by the fire. The vehicle has an open Kia SC356 / the federal safety agency 25V794 safety recall, which we were unaware of, but it has not yet been determined whether the condition addressed by that recall caused or contributed to this incident. - The Killeen Fire Department responded to the vehicle fire and extinguished the fire. The incident has also been reported to my insurance company, and an insurance claim is currently pending. No inspection has yet been performed to determine the cause of the fire. The vehicle is being preserved so that it remains available for inspection by the manufacturer, insurance representatives, the federal safety agency, or an independent expert if necessary. -No warning lamps or warning messages prior to the incident. While driving, the vehicle suddenly stopped accelerating, then a popping noise was heard, followed by smoke, and the vehicle subsequently caught fire. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 5

Filed Sep 2, 2026 · Driver assistance, Electrical · FL

All lights on dash appear. Forward collision warning, blind spot warning, other warnings. Car loses ability to accelerate for a few moments and makes unsafe to drive. RPM needle bounces.

Filed Jul 27, 2026 · Engine · 76,000 miles · TX

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.

Filed Jul 6, 2026 · Engine, Fuel system · FL

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)

Filed May 12, 2026 · Engine, Fuel system · PA

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

Filed Apr 2, 2026 · Engine, Fuel system · AZ

My 2022 Kia K5 GT-Line has had a recurring check engine light fault (P0471 — exhaust pressure sensor circuit) since approximately 9,874 miles in September 2022. The vehicle has been brought to the servicing Kia dealer a minimum of five times for this same fault across nearly 65,000 miles. It has never been permanently resolved. Most critically: dealer repair records from May 2025 (56,501 miles) confirm a technician identified fault code P047100, noted it as a history code, cleared it, test drove the vehicle, and returned it without performing any repair and without informing me. Ten months later, the same dealer presented this identical fault as a $1,121.07 customer-pay repair on a vehicle under active 10-year/100,000-mile powertrain warranty. The repair was only approved after I contacted Kia Consumer Affairs directly — the dealer had not contacted them despite claiming otherwise. The February 2026 repair failed within 15 minutes of pickup. I made five documented phone calls to the dealer over 33 days reporting the failure. No action was taken. The April 2026 repair — sensor and hose replacement — failed within one hour of pickup on April 1, 2026. Of additional concern: Recall SC288/SC288A (Fuel Tank Inspection and ECM Re-Update) was performed on this vehicle twice — July 2024 and August 2025. The ECM governs the exhaust pressure sensor circuit. The P0471 fault first appeared in dealer records between these two recall dates and has persisted through both completions. CARFAX confirms the April 2026 repair involved the engine/powertrain computer module. I am requesting the federal safety agency investigate whether SC288/SC288A is connected to recurring P0471 faults in 2022 Kia K5 vehicles. Kia Consumer Affairs Case escalated April 2, 2026.

Filed Jan 19, 2026 · Driver assistance, Electrical · IL

My 2022 Kia k5 has gone into limp mode multiple times now while I am driving in addition to when it starts up. Check engine light, AUTOHOLD, EPB, traction control, etc. all aluminate on my dashboard. Car drives very rough and doesn’t want to accelerate or shift. Huge safety issue. Dealership said it was the throttle body assembly. Paid to have it replaced and the issues still persists. I have read multiple other comments with the same issue and dealerships have no idea what the issue is or how to correctly diagnose. Error codes were P00BD00, C136081, and C174181.

Filed Jan 3, 2026 · Acceleration, Driver assistance · CA

The drive train car would not go then my accelerator will rev up and down and not go over 10 miles a hour then all these service lights come on and car go in like limp mode and not drive in middle of intersection no one inspected the car i tuned it off and let it sit for 24 hours and started it and it was normally except the acceleration goes up and down when it wants to there were a lot of warning lights

Filed Dec 29, 2025 · Engine · MI

UNKNOWN. Engine misfires. Piston rings