Toyota Sienna 2021 — technical service bulletin
Bulletin Instructions 22T · NHTSA communication 10224125 · issued Jun 30, 2022
Technical service bulletin
communication type
Back Over Prevention
component
2021
model years
2
vehicle entries
Official summary
Ti: technical instructions for limited service campaign 22td04 accessory dash camera firmware update certain 2021 model year sienna vehicles certain 2021 model year venza vehicles
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.