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.
2023 Kia Sorento: engine overheating
5 of the 128 complaints about the 2023 Kia Sorento describe engine overheating.
- owner complaints
- 5
- of this car's complaints
- 4%
- recalls
- 0
Engine overheating by model year
What owners say
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
6/22/24-Initial start of dashboard light "miscommunication"-Codes could not be duplicated at Evans Kia dealership 7/11/24-Miscommunication occurs again-Codes pulled for diagnostics 7/22/24-Car brought in for scheduled appointment to dealership to "fix" communication errors: I was told "There was an issue with the system not updating but I should be good to go now" 2/17/25-Communication errors reappear on dash-Car taken back to dealership; Tech line case opened; Dashboard Cluster Replaced; Car given back to customer 3/20/25-Lemon Law Case filed: Determined past mileage window-Given $3000 settlement for my trouble 6/23/25-Miscommunication reappears on dash: Car taken back to dealership; Tech line case opened; Replaced Steering Column Assembly-Car given back to customer Customer files complaint with Kia Customer Affairs 6/30/25-Miscommunication reappears on dash: Car taken back to dealership; Numerous codes read from diagnostic-Tech line case opened-Front windshield camera is ready "overheating"-Tech line advises for the the camera to be replaced; Car not given back to customer and tech authorized to test drive 7/07/25-Customer informed miscommunication reappeared on dash; Tech line contacted and additional repairs pending their advice 7/15/25-Field Tech scheduled to come to Evans Kia dealership 7/24/25 "The safety of both myself and my children has been repeatedly compromised. No representative within Kia's organization has been able to provide assurance that, when all dashboard warning lights illuminate, the vehicle will not experience a complete malfunction. As a result, I no longer feel safe operating the vehicle. In July 2025, I formally requested that Kia Corporate initiate a buyback of the vehicle, rather than returning it to me following another attempted repair."
The car overheated while driving and my wife and daughter had to pull over to side of road. Engine Coolant was spilling everywhere. Car was towed to Raceway Kia in Freehold NJ. The dealer advised my wife that the radiator needs to be replaced and it was NOT covered under warranty. They claim that debris from the road must have damaged the radiator and therefore it was "third party damage". I searched the web for incidents and found that this ios a design problem in the Kia Sorrento. Their design causes the vulnerability to get damage to readaitor due to leaks. This should be recalled and redesigned before someone gets seriously injured as a result.
On 6/6/2023, the sunroof shattered while driving. No rock/debris collided at this time with the sunroof and I believe this is a security malfunction due to the glass overheating. This incident isn't the result of mishandling on our (the consumer's) behalf. The car dealership (VANGUARD KIA of Arlington) has denied responsibility in the defect of this car part. As such, I'm filing on for our situation and warning of others who are at risk. Additionally, no warning lamps, messages, or other symptoms of the problem were present prior to the failure.
Service bulletins that may apply
Related recalls
No recalls on record for this model year.
Questions about the 2023 Kia Sorento overheating
Is engine overheating a common problem on the 2023 Kia Sorento?
5 of 128 owner complaints about the 2023 Kia Sorento (4%) mention engine overheating. The model year with the most reports is 2016.
Is there a recall or service bulletin for this on the 2023 Kia Sorento?
There are 0 recalls and 3 service bulletins for the same area of the car. Check them below with your VIN.
Other symptoms on the 2023 Kia Sorento
Check engine light 12Sunroof shattered 10Warning lights 9Stalling 8Backup camera 6Jerking 6Lane assist 6Loss of power 6Transmission failure 6Grinding brakes 5
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