KIA

TSB_ELE386

2025-06-12 · NHTSA 11019906

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

Manufacturer summary

Original wording in English

TECHNICAL SERVICE BULLETIN: SERVICE ACTION: MCU DTC LOGIC IMPROVEMENT (SA617) - This bulletin provides information to upgrade the Motor Control Unit ‘MCU’ system software on certain 2025MY Carnival HEV (KA4 HEV) vehicles produced from June 27, 2024, through March 19, 2025. The affected vehicles may exhibit an intermittent Malfunction Indicator Lamp ‘MIL’ illuminated on the instrument cluster with DTC P0C7300. The DTC is caused by a software logic error within the Integrated Thermal Management Module ‘ITM’, which controls the coolant flow rate according to the coolant temperature.

Repeated filings are grouped only when make, bulletin number, publication date and complete summary agree. Original record numbers are retained. Older publications remain available, and an explicit later version is shown when established. Pre-1994 vehicle associations are separated from default results; an unspecified year does not mean all model years apply.