{"nhtsa_id":10164347,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2019-09-03","date":"2019-07-11","document_id":"ZJC-Toyota POL19","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM; EQUIPMENT; POWER TRAIN","mfr_system":null,"summary":"Customer Support Program Bulletin: Toyota has received reports indicating potential symptoms, such as a whine noise from the transmission while driving, harsh shifting, reduced power, and master warning light/check engine light illumination, in the subject vehicles that are equipped with a model UA80 transmission. There is a possibility that a washer tab, designed to prevent the loosening of a nut inside the affected transmissions, was not sufficiently bent during assembly. This could lead to the nut loosening and, over time, lead to the symptoms described above.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10164347-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10164347-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10164347","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null},{"id":"powertrain","name":"Transmission and driveline","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":[]}