Kia Sorento overheating problems

Filed Nov 4, 2026 · Brakes, Electrical · 120,000 miles · AZ · fire

The contact owns a 2014 Kia Sorento. The contact received notification of the federal safety agency Campaign Number: 23V652000 (Service Brakes, Hydraulic). The contact stated that while the vehicle was parked and turned off overnight, an underhood might have fire occurred. While inspecting the vehicle the following day, the contact discovered a large hole in the battery, burned underhood components, and melted wiring harness sections on the battery terminal and engine. The contact stated that an overheated fuse might have caused the fire, which might have been extinguished overnight by the heavy rain. The vehicle was towed to the dealer; however, the vehicle was not diagnosed or repaired. The dealer informed the contact that the dealer would only replace the HECU fuse under the recall, and the contact was responsible for all additional repair costs. The dealer informed the contact that if diagnostic testing could not be completed, the contact was required to remove the vehicle from the dealer lot. The contact stated that prior to the underhood fire, the vehicle lost motive power while driving and failed to restart. The vehicle was towed to the contact's residence. The manufacturer was notified of the failure by telephone. The failure mileage was approximately 120,000.

Filed Oct 21, 2026 · Electrical · IN

Subject: Request for Review of Potentially Related Electrical Overheating – Kia Sorento HVAC Harness Recall SC351 / the federal safety agency 25V649 I am requesting that the federal safety agency review an electrical overheating issue involving my Kia Sorento and consider whether it could be related to the existing HVAC blower-motor resistor harness recall, SC351 / the federal safety agency 25V649. My vehicle experienced overheating at a terminal on the main relay in the under-hood fuse box. The overheating spread to and melted part of the fuse box. Kia inspected the vehicle in person and informed me that the overheated relay terminal belongs to a different circuit from the HVAC resistor harness involved in the recall. I understand Kia's position that these are separate circuits. However, I have not received a detailed technical explanation identifying the root cause of the relay terminal overheating or explaining the basis for ruling out any relationship to the recalled wiring defect. Kia has offered approximately $2,200 toward an estimated $3,900 repair through a goodwill program, leaving me responsible for approximately $1,700. I am concerned about both the safety implications of the electrical overheating and whether the problem could be related to a known wiring-harness defect. I am not asserting that the recalled HVAC harness definitively caused the damage. I am asking the federal safety agency to consider whether this incident warrants further review, whether similar failures have been reported by other Kia Sorento owners, and whether the existing recall adequately addresses the relevant safety defect. I can provide the vehicle identification information, recall information, photographs of the damage, Kia's written communications, and the repair estimate. Thank you for reviewing this potential safety concern.

Filed Sep 28, 2026 · Engine · NC

Vehicle equipped with 3.3L V6 Lambda II engine, covered under active Kia Warranty Extension Campaigns WTY035/WTY039 for engine block head bolt/gasket failure.In July, the vehicle experienced a cooling system issue and was brought to authorized dealer Westgate Kia. Despite explicit campaign guidelines mandating a coolant pressure test and chemical combustion block test for cooling complaints on this engine, the dealership failed to follow the TSB protocol. They attributed the issue solely to an external hose, recommended unrelated peripheral repairs, and released the vehicle without performing the required campaign diagnostics.A few months later, the unchecked progressive manufacturing defect resulted in catastrophic engine failure. The vehicle exhibited intermittent overheating, blew heavy white smoke from the tailpipe (indicating a massive head gasket breach/coolant entering combustion chambers), and ultimately suffered a total loss of cylinder compression, requiring it to be towed back to Westgate Kia.The dealership is currently trying to evade the 15-year/180,000-mile WTY035/WTY039 campaign coverage. The service department is refusing to follow the mandated diagnostic flowchart to check for stripped engine block head bolts, instead claiming the failure is due to a "melted radiator." They are attempting to blame the consequences of the extreme engine overheating on peripheral parts to avoid performing the required engine sub-assembly replacement under the federal campaign.

Filed Aug 24, 2026 · Body · FL

The front bumper grill to this Sorento model, among others, has a major design flaw that causes the radiator to be highly vulnerable to debris. A rock struck and punctured my radiator causing it to aggressively spray engine coolant, eventually leading to my engine overheating. I found this incident to be an extremely odd and rare situation considering I was only driving on paved suburban roads. After some further investigation online, it appears there are several other customers across the country that have encountered this same issue. Many even displaying tutorials on how they have rigged their Kias with reinforced plastic grates to protect their radiators from further damage. Really? This is what consumers are being forced to do in 2026 to protect their front radiators on a modern vehicle? These damages occur way too easily on normal city roads and not on rough terrain (despite my xline model specifically being marketed as a rugged outdoor vehicle). This easily avoidable design flaw is due to the large openings in the front grill. I have driven thousands of miles across the country in far less rugged vehicles, including many years in "rocky" Colorado, and have NEVER experienced a radiator being so easily pierced by debris. Kia customers are being footed the bill for these costly repairs as this is not considered a "factory defect" when in fact it is. Not to mention this can cause catastrophic damages to the engine in some cases. This is malpractice and Kia should be held accountable. My vehicle is currently being held at a kia service center near where the incident took place and awaiting an assessment from my insurance claim specialist. Luckily no one was hurt during this incident, I just had to get my wife and newborn child an uber to the nearest hotel while I waited 2hrs on a tow truck.

Filed Aug 16, 2026 · Acceleration, Electrical · MN

The dashboard has a screen display. I couldn’t see my fuel tank information. Every time I would use my turn signal a large green circle would take over the screen. Followed by loss of the screen, meaning no speedometer, rpm, etc. As the problem continued the speedometer started displaying incorrect numbers. Saying I was going 70 miles an hour when I was actually going about 55. Gage for fuel and heat (notifying if car is overheating, was lost for the entirety of my drive).

Filed Jul 13, 2026 · Electrical · SC

Vehicle Component Affected: Electrical System / HVAC / Blower Motor Resistor Incident Description: While operating my 2023 Kia Sorento, the HVAC system suddenly suffered a complete failure, causing all airflow to cease instantly. A subsequent professional diagnostic inspection by an authorized Kia dealership revealed that the contacts at the blower motor resistor were severely burnt, causing the blower motor relay to burn out. This failure presents two critical safety and fire hazards: Fire Risk: The physical burning and overheating of electrical components and wiring within the dashboard assembly create an active fire hazard in the passenger cabin. Loss of Visibility: The sudden, complete loss of the climate control system severely compromises passenger safety by preventing the vehicle from defogging or defrosting the windshield during inclement weather, presenting an immediate crash hazard. This exact failure mechanism matches the description of Kia Safety Recall SC351 (the federal safety agency Campaign 25V649) word-for-word. However, Kia has stated that my specific VIN is excluded from the current recall population. Because this identical safety defect is actively manifesting outside of Kia's restricted recall range, I am requesting that the federal safety agency investigate an expansion of SC351 to include all affected 2023 Kia Sorento vehicles to mitigate the risk of electrical fires and sudden visibility loss. 06/29/26 Experienced symptoms Inspected and diagnosed on 07/01/26 at JT Kia (Killian Road) Columbia, South Carolina

Filed Jun 3, 2026 · Engine · TX

My 2019 Sorento 3.3L suffered high oil consumption followed by a severe oil leak at the back of the head/engine block threads. There is an odor of coolant which smells sweet with no visible coolant leak meaning there is likely coolant seeping into the engine mixing with the oil. I believe this an ongoing engine failure caused from Kia not correcting the issues over many years.

Filed Jun 2, 2026 · Engine · TX

The vehicle's original engine suffered severe oil consumption and a blown head gasket, which contaminated the exhaust system. The Kia dealership replaced the engine under warranty but refused to replace the damaged catalytic converter claiming it wasn’t a part of the warranty even though it was consequently damaged. The dealership explicitly stated the vehicle should not be started or driven due to the blocked exhaust, but then did repair and release after I pushed for the catalytic converter replacement. They said I would have to follow up with Kia corporate. They released the unsafe vehicle anyway and I have been following up with Kia customer service for 2 months to request a CAT replacement. While driving, the blocked exhaust caused a severe rattling noise, immediate engine overheating, and complete mechanical engine seizure. The engine completely cut power and locked up while in motion, creating an immediate crash hazard on the roadway. The vehicle is now completely inoperable and will not turn over. This is a severe safety defect where a known blocked exhaust system directly caused catastrophic engine failure while operating.

Filed Jun 2, 2026 · MA

Coolant empty, found overheating. Coolant refilled. No noticeable leaks. Mechanic found failure of thermostat. Replaced and car found to be overheating again. Coolant leaking into hood covering engine components.

Filed May 1, 2026 · Engine · MO

Engine failure & excessive oil consumption causing the vehicle to overheat. Coolant low, suspect coolant loss internally in engine. P0524 Engine pressure too low. Potential causes: low oil pressure, low oil level, wrong oil viscosity, contaminated oil, faulty oil pressure sensor, signal shorted to ground in electrical circuit of sensor, worn internal engine components. Per testing- coolant low, suspect coolant loss internally in engine.