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

Bulletin number

T-SB-0033-22 Rev

Component

Hybrid propulsion system

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 6 complaints in the fuel system category.