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RecallGazette

Vehicle problems, recalls & safety intelligence

Toyota 86 2021–2024 — technical service bulletin

Bulletin T-SB-0107-20 · NHTSA communication 10241404 · issued Jul 25, 2023

Technical service bulletin
communication type
Engine and Engine Cooling
component
2021–2024
model years
42
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 Global Techstream+ (GTS+) ECU flash reprogramming procedures and outlines use of the Technical Information System (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. Thi

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.