Kia Optima Hybrid system failure warning and charging system check issue on Kia Optima

Some Kia Optima Hybrid owners report experiencing issues related to hybrid system failure warnings and charging system checks, such as receiving a "Hybrid System Warning" message that may indicate problems with the 12V battery, hybrid battery, inverter, or other hybrid system components. These warnings can arise from various causes, including faults in the high-voltage battery or hybrid system management computer. When confronted with a "Check Hybrid System" warning light, owners are advised to troubleshoot by inspecting the 12V battery and ensuring all connections are secure. Additionally, some owners may find that their vehicle is subject to recalls for known issues, while others may need to seek diagnosis and repair from a certified dealer or hybrid specialist if no recalls apply. In emergency situations, the warning message can lead to the charger plug being locked in place, which can be problematic if the system malfunctions. It is essential for owners to promptly address these issues to maintain the safety and functionality of their vehicle.