Toyota 86 2021–2023 — technical service bulletin
Bulletin TSB011120Rev1 · NHTSA communication 10224141 · issued Jul 8, 2022
Technical service bulletin
communication type
Engine and Engine Cooling
component
2021–2023
model years
18
vehicle entries
Official summary
TSB: When certain vehicle ECUs are replaced, the ECU security key must be written in order for that ECU to communicate on the vehicle network. The Techstream Software Health Check Results screen has been enhanced to help identify if a replacement ECU requires an ECU security key.
Vehicles covered
- 2022 Toyota 86
- 2023 Toyota BZ4X
- 2022 Toyota Corolla
- 2021 Toyota Mirai
- 2022 Toyota Mirai
- 2021 Toyota RAV4 Prime
- 2022 Toyota RAV4 Prime
- 2021 Toyota Sienna
- 2022 Toyota Sienna
- 2021 Toyota Sienna Hybrid
- 2022 Toyota Sienna Hybrid
- 2021 Toyota Tundra
- 2022 Toyota Tundra
- 2022 Toyota Tundra Hybrid
- 2021 Toyota Venza
- 2022 Toyota Venza
- 2021 Toyota Venza Hybrid
- 2022 Toyota Venza Hybrid
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.