{"nhtsa_id":11003621,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2024-07-06","date":"2024-04-11","document_id":"T-SB-0111-20 Rev2","mfr_campaign":"T-SB-0111-20","replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"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 GTS+ Software Health Check Results screen has been enhanced to help identify if a replacement ECU requires an ECU Security Key. REVISION NOTICE April 11, 2024 Rev2: •Applicability has been updated to include 2023 – 2024 model year 86, Corolla, Corolla Cross, Corolla Cross Hybrid, Crown, GR Corolla, Mirai, Prius, Prius Prime, RAV4 Prime, Sequoia Hybrid, Sienna Hybrid, Tundra, Tundra Hybrid, Venza Hybrid, and Yaris and 2024 model year bZ4X, Highlander, Highlander Hybrid, Grand Highlander, and Grand Highlander Hybrid vehicles. •The entire bulletin has been updated to represent GTS+ Software. July 08, 2022 Rev1: •Applicability has been updated to include 2022 model year 86, Corolla Cross, Mirai, Tundra, and Tundra Hybrid vehicles and 2023 model year bZ4X vehicles. Any previous printed versions of this bulletin should be discarded.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-11003621-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-11003621-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11003621","components":[{"id":"electrical","name":"Electrical system","parent":null}],"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":2024,"match":"exact","vehicle_ids":["2023_toyota_corolla","2024_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 CROSS HYBRID","year_from":2023,"year_to":2024,"match":"base","vehicle_ids":["2023_toyota_corolla-cross","2024_toyota_corolla-cross"]},{"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":"GRAND HIGHLANDER HYBRID","year_from":2024,"year_to":2024,"match":"base","vehicle_ids":["2024_toyota_grand-highlander"]},{"make":"TOYOTA","model":"HIGHLANDER","year_from":2024,"year_to":2024,"match":"exact","vehicle_ids":["2024_toyota_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":2023,"year_to":2024,"match":"base","vehicle_ids":["2023_toyota_sequoia","2024_toyota_sequoia"]},{"make":"TOYOTA","model":"SIENNA HYBRID","year_from":2021,"year_to":2024,"match":"base","vehicle_ids":["2021_toyota_sienna","2022_toyota_sienna","2023_toyota_sienna","2024_toyota_sienna"]},{"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"]},{"make":"TOYOTA","model":"TUNDRA HYBRID","year_from":2022,"year_to":2024,"match":"base","vehicle_ids":["2022_toyota_tundra","2023_toyota_tundra","2024_toyota_tundra"]},{"make":"TOYOTA","model":"VENZA HYBRID","year_from":2021,"year_to":2024,"match":"base","vehicle_ids":["2021_toyota_venza","2022_toyota_venza","2023_toyota_venza","2024_toyota_venza"]},{"make":"TOYOTA","model":"YARIS","year_from":2023,"year_to":2023,"match":null,"vehicle_ids":[]},{"make":"TOYOTA","model":"redundant 86","year_from":2022,"year_to":2024,"match":null,"vehicle_ids":[]}],"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":[]}