Toyota Avalon 2018 — technical service bulletin
Bulletin T-SB-0197-17 · NHTSA communication 10131860 · issued Mar 8, 2017
Technical service bulletin
communication type
Electrical System
component
2018
model years
7
vehicle entries
Official summary
TSB: Hybrid vehicles are equipped with 2 types of batteries: ? Hybrid Vehicles (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.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.