TSB: Hybrid and battery electric vehicles are equipped with two types of batteries:
?Hybrid Vehicle (HV) battery
?Auxiliary (12V) battery
If the hybrid vehicle or battery electric vehicle is placed into storage, the State-Of-Charge (SOC) of its HV battery and auxiliary battery will gradually decrease. To prevent the auxiliary battery from becoming discharged during storage, proper maintenance is necessary.
Perform the following maintenance service for the HV battery and auxiliary battery.
