Toyota Sienna Hybrid 2021–2023 — technical service bulletin
Bulletin T-TT-0716-22 · NHTSA communication 10230358 · issued Dec 5, 2022
Technical service bulletin
communication type
Equipment
component
2021–2023
model years
3
vehicle entries
Official summary
TT: Vehicle option selection during identification process when connecting Techstream for diagnosis/repair
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.