Toyota 86 2021–2023 — technical service bulletin
Bulletin T-SB-0107-20 Rev · NHTSA communication 10217798 · issued Jul 19, 2022
Technical service bulletin
communication type
Electrical System
component
2021–2023
model years
18
vehicle entries
Official summary
TSB: Flash reprogramming allows the Electronic Control Unit (ECU) software to be updated without replacing the ECU. Flash calibration updates for specific vehicle models/ECUs are released as field-fix procedures described in individual Service Bulletins. This bulletin details the Techstream ECU flash reprogramming process and outlines use of TIS and the Calibration Update Wizard (CUW). To ensure the correct ECU software is installed, ECUs will require a Security Signature before the ECU will initialize the flash reprogramming sequence. This bulletin also details the process for acquiring a Sec
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.