{"nhtsa_id":10185780,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-01-25","date":"2020-12-11","document_id":"T-SB-0001-18 Rev","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"TSB: When completing a transaxle assembly replacement, Engine Control Module (ECM) (SAE term: Powertrain Control Module [PCM]) replacement, or ECM (PCM) reprogram, ensure the correct ECM (PCM) software is matched with the transaxle assembly hardware. Some 2017 ? 2018 model year Highlander and Sienna vehicles require different ECM (PCM) software based on the transaxle assembly hardware installed in the vehicle.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10185780-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10185780-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10185780","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"TOYOTA","model":"HIGHLANDER","year_from":2017,"year_to":2018,"match":"exact","vehicle_ids":["2017_toyota_highlander","2018_toyota_highlander"]},{"make":"TOYOTA","model":"SIENNA","year_from":2017,"year_to":2018,"match":"exact","vehicle_ids":["2017_toyota_sienna","2018_toyota_sienna"]}],"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":[]}