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Service bulletin TSB002523

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10252255
Published by NHTSA2024-04-01
Manufacturer's numberTSB002523
Manufacturer's date2024-02-19
NHTSA componentFUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY

NHTSA's summary

TSB: Hybrid vehicles (HV) and battery electric vehicles (BEV) are equipped with two types of batteries: ?Hybrid vehicle (HV) battery. ?Auxiliary (12V) battery. If a hybrid or battery electric 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. Perform the following maintenance service for the HV battery and auxiliary battery.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Fuel system, Fuel tank

Vehicles listed
TOYOTA CAMRY2024
TOYOTA COROLLA2024
TOYOTA COROLLA CROSS2024
TOYOTA GRAND HIGHLANDER2024
TOYOTA MIRAI2024
TOYOTA PRIUS2024
TOYOTA PRIUS PRIME2024 (the catalog's model; the bulletin names a series or trim of it)
TOYOTA RAV42024
TOYOTA RAV4 PRIME2024 (the catalog's model; the bulletin names a series or trim of it)
TOYOTA TACOMA2024
TOYOTA TUNDRA2024

Listing a model year does not mean every vehicle of it is concerned: the document says which.