{"nhtsa_id":10241404,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-08-28","date":"2023-07-25","document_id":"T-SB-0107-20","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE","mfr_system":null,"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. This bulletin also details the process for acquiring a Security Signature from TIS during the GTS+ ECU flash reprogramming process.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10241404-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10241404-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10241404","components":[{"id":"engine","name":"Engine","parent":null},{"id":"engine-control-module","name":"Engine control module","parent":"engine"}],"codes":[],"topics":[],"vehicles":[{"make":"TOYOTA","model":"BZ4X","year_from":2023,"year_to":2024,"match":"exact","vehicle_ids":["2023_toyota_bz4x","2024_toyota_bz4x"]},{"make":"TOYOTA","model":"COROLLA","year_from":2023,"year_to":2023,"match":"exact","vehicle_ids":["2023_toyota_corolla"]},{"make":"TOYOTA","model":"COROLLA CROSS","year_from":2022,"year_to":2024,"match":"exact","vehicle_ids":["2022_toyota_corolla-cross","2023_toyota_corolla-cross","2024_toyota_corolla-cross"]},{"make":"TOYOTA","model":"COROLLA HYBRID","year_from":2024,"year_to":2024,"match":"base","vehicle_ids":["2024_toyota_corolla"]},{"make":"TOYOTA","model":"CROWN","year_from":2023,"year_to":2024,"match":"exact","vehicle_ids":["2023_toyota_crown","2024_toyota_crown"]},{"make":"TOYOTA","model":"GR COROLLA","year_from":2023,"year_to":2024,"match":"exact","vehicle_ids":["2023_toyota_gr-corolla","2024_toyota_gr-corolla"]},{"make":"TOYOTA","model":"GRAND HIGHLANDER","year_from":2024,"year_to":2024,"match":"exact","vehicle_ids":["2024_toyota_grand-highlander"]},{"make":"TOYOTA","model":"HIGHLANDER HYBRID","year_from":2024,"year_to":2024,"match":"base","vehicle_ids":["2024_toyota_highlander"]},{"make":"TOYOTA","model":"MIRAI","year_from":2021,"year_to":2024,"match":"exact","vehicle_ids":["2021_toyota_mirai","2022_toyota_mirai","2023_toyota_mirai","2024_toyota_mirai"]},{"make":"TOYOTA","model":"PRIUS","year_from":2023,"year_to":2024,"match":"exact","vehicle_ids":["2023_toyota_prius","2024_toyota_prius"]},{"make":"TOYOTA","model":"PRIUS PRIME","year_from":2023,"year_to":2024,"match":"base","vehicle_ids":["2023_toyota_prius","2024_toyota_prius"]},{"make":"TOYOTA","model":"RAV4 PRIME","year_from":2021,"year_to":2024,"match":"base","vehicle_ids":["2021_toyota_rav4","2022_toyota_rav4","2023_toyota_rav4","2024_toyota_rav4"]},{"make":"TOYOTA","model":"SEQUOIA HYBRID","year_from":2024,"year_to":2024,"match":"base","vehicle_ids":["2024_toyota_sequoia"]},{"make":"TOYOTA","model":"TUNDRA","year_from":2021,"year_to":2024,"match":"exact","vehicle_ids":["2021_toyota_tundra","2022_toyota_tundra","2023_toyota_tundra","2024_toyota_tundra"]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}