{"source":"nhtsa","country":"us","campaign":"21V734000","date":"2021-09-22","owner_notified":"2021-11-18","manufacturer":"Toyota Motor Engineering & Manufacturing","component":"HYBRID PROPULSION SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE","summary":"Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2022 Prius and Prius Prime vehicles.  The Engine Control Unit (ECU) software may falsely detect an error and shut down the hybrid system, causing a loss of drive power.","consequence":"A loss of drive power increases the risk of a crash.","remedy":"Dealers will update the ECU software, free of charge.  Owner notification letters were mailed November 18, 2021.  Owners may contact Toyota customer service at 1-800-331-4331.  Toyota's number for this recall is 21TB07/21TA07.","notes":"Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.","mfr_campaign":"21TB07 / 21TA07","part_number":"89981-47U40, 89981-47U30, 89981-47S90, 89981-47U50","units":8411,"completion":{"kind":"annual","report_number":2,"period_from":"2024-4","period_to":"2025-3","submitted":"2025-10-15","involved":8411,"remedied":8241,"unreachable":82,"removed":9,"remedied_percent":97,"as_of":"2026-10-19"},"do_not_drive":false,"park_outside":false,"notification":null,"french":null,"vehicles":[{"year":2022,"make":"TOYOTA","model":"PRIUS","vehicle_id":"2022_toyota_prius","match":"exact","built_from":null,"built_to":null},{"year":2022,"make":"TOYOTA","model":"PRIUS PRIME","vehicle_id":"2022_toyota_prius","match":"base","built_from":null,"built_to":null}],"may_apply":true,"as_of":"2026-10-19","lookup":{"nhtsa":"https://www.nhtsa.gov/recalls","tc":"https://wwwapps.tc.gc.ca/Saf-Sec-Sur/7/VRDB-BDRV/search-recherche/menu.aspx?lang=eng","maker":null},"attribution":[],"url":"https://open.wenmarpro.com/recalls/nhtsa/21V734000"}