2022 Kia K5

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

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 NHTSA investigate whether SC288/SC288A is connected to recurring P0471 faults in 2022 Kia K5 vehicles. Kia Consumer Affairs Case escalated April 2, 2026.

STATEMENT OF FACTS: I presented my Kia K5 for two safety recalls (SC356 and SC263) with an active Check Engine Light for code P047100 (Exhaust Pressure Sensor). I informed the service advisor, Aliyah, that this code is a symptomatic secondary fault of the pressure irregularities addressed in Recall SC356, which explicitly lists an "Illuminated Check Engine Light" (MIL) as a primary warning sign. The dealership dismissed my technical assessment—which was backed by advanced AI data analysis. After the software update was performed, the advisor claimed the code remained "active," thereby "proving" it was unrelated to the recall. Based on this, I was charged a $248 diagnostic fee and told I needed a $534.02 out-of-pocket hardware repair for a "physically failing" differential pressure sensor that was allegedly reading 2 HPA against a spec of 23.09 HPA. EVIDENCE OF ERROR: Upon taking delivery of the vehicle, the Check Engine Light was completely extinguished. If the light were truly "still active" after the update, as I was told to justify the fee, the fault would have been present at pickup. Since then, I have driven over 120 miles (including multiple cold-start drive cycles between [XXX] and my place of work) with a 100% clear dashboard. My XXX App confirms the XXX fault is resolved, while the recalls remain "Open" administratively. REGULATORY VIOLATION: Under 49 U.S.C. Chapter 301, a manufacturer must remedy a safety defect without charge. A software "Logic Update" cannot physically repair a broken pressure sensor. The fact that the fault disappeared immediately following the update proves the sensor was functional and the fault was caused by the recall defect. By misdiagnosing a recall symptom as a non-covered hardware failure, the dealer effectively charged me for a federal safety repair. I request an investigation into these "diagnostic gatekeeping" practices and a full refund of the $248.00 fee. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

While driving my 2022 Kia K5 LXS, the vehicle began shaking violently and lost acceleration. The check-engine light came on, showing code P0301 (cylinder 1 misfire). The issue caused unsafe driving conditions, especially with my child in the car. Kia Roseville incorrectly documented the repair, while Kia Folsom later confirmed the issue was engine-related. The vehicle has also been subject to fuel tank expansion concerns under recalls SC288 and SC288A, which can create additional fire risk and pressure issues. Despite repairs, I still experience safety fears and severe loss of vehicle value due to these recurring defects and poor documentation. Kia America has not provided a resolution.

While driving the car started to have the sensors for the adaptive cruise control, automatic emergency breaking, blind spot warning, forward collision warning, and rear cross traffic warning all came on. The rpm starting going crazy the car was shaking and struggling to start, the car was shifting weird causing the acceleration to be poor. This all happened while driving if we were on a busy road we would’ve gotten hit the car randomly started breaking and slowing down, this is dangerously and could cause serious injury and damages to the vehicle and others around it. This is a problem a lot of people have been complaining about and need to be fixed it’s not okay or safe to be driving a car with these issues especially when there is no warning it just breaks and shuts down no matter where you are or how fast you may be going.

The contact owns a 2022 Kia K5. The contact stated that while attempting to accelerate from a complete stop at the red traffic light, the vehicle failed to respond upon depressing the accelerator pedal. The contact stated that upon shifting to park(P) and restarting the vehicle, the vehicle operated as needed. The vehicle was towed to the local dealer, but was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was 38,000.

The vehicle has experienced repeated transmission-related issues, including erratic shifting, delayed response, slippage, and sudden loss of power while driving. These symptoms significantly impact drivability and pose a safety risk, especially when accelerating or merging in traffic. The issue was previously addressed by the dealership under a recall repair. However, the same transmission behavior has returned approximately 3–4 months after the repair. The dealership performed repairs multiple times before, and the symptoms have now recurred. The problem has been confirmed by the authorized dealership and is scheduled for another inspection. There have been warning symptoms such as hesitation during gear shifts and intermittent power dips while in motion, which began reappearing recently. The component remains available for inspection. Given the repeat nature of the issue following an official recall, I believe this may be part of a broader unresolved defect in the vehicle’s transmission system. The issue initially reappeared briefly after the recall repair, then subsided. However, it returned more consistently and noticeably after a couple of months, and is now ongoing.

My 2022 Kia K5 GT-Line was involved in a hit and run accident while my vehicle was unattended and legally parked on the street. The repairs for this vehicle were $11,500+ The entirety of the left side of the car was mauled. Very key integral parts were involved and I have had alignment issues, A/C and heating issues, electrical problems including safety features (lane change, etc) and heavy suspension damage. It took almost 5 months to fix everything on my car insurance company/shop; mostly using aftermarket parts to save money. Loved the “State of condition must be repaired to a pre-accident condition” yet the insurance gets away with using after market parts! As of, 08/29/2024, my vehicle is currently at the Kia dealership for o2 sensor recall, as well as my melted blower motor, melted a/c wiring harness kit, foul stench coming from A/C vents when recirculating switched into fresh air mode. The smell is foul and causing upper respiratory issues for me. The seat has become toxic smelling from mildew/rust. I’ve been trying to address all of the above issues. The shop believes once they fix the A/C blower motor/wiring harness they can try to diagnose the fumes coming from the vents. Most of the repairs are on back order and without a date (2weeks-2months+) I am without a vehicle for my job and my insurance doesn’t cover rental reimbursement.