Hybrid vehicles are equipped with two types of batteries: ?Hybrid vehicle (HV) battery

Bulletin number

T-SB-0033-22

Component

Electrical system: 12v/24v/48v battery

Summary

TSB: Hybrid vehicles are equipped with two types of batteries: ?Hybrid vehicle (HV) battery. ?Auxiliary (12V) battery. If the hybrid vehicle is put 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. As a matter of policy, Toyota does not provide battery warranty coverage for discharged and/or failed batteries due to lack of maintenance. It is the dealer?s responsibility to maintain the specified SOC of the vehicle?s battery while in stock and ensure proper SOC at delivery

Owners of these vehicles have filed 13 complaints in the electrical category.