{"nhtsa_id":10034047,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2010-10-13","date":"2010-07-09","document_id":"TC-10-032","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS","mfr_system":null,"summary":"TOYOTA SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. ON CERTAIN VEHICLES EQUIPPED WITH A 2GR-FE (V6) ENGINE, THE RUBBER PORTION OF THE OIL SUPPLY HOSE FOR THE VVT-I ACTUATOR MAY DEGRADE OVER TIME. THIS CONDITION MAY CAUSE OIL TO LEAK FROM THE VVT-I OIL HOSE PRODUCING ABNORMAL ENGINE NOISE AND THE OIL PRESSURE LIGHT TO ILLUMINATE. CSC LETTER WAS REC'D. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10034047","components":[{"id":"engine","name":"Engine","parent":null},{"id":"cooling-system","name":"Cooling system","parent":"engine"}],"codes":[],"topics":[],"vehicles":[{"make":"TOYOTA","model":"SIENNA","year_from":2007,"year_to":2010,"match":"exact","vehicle_ids":["2007_toyota_sienna","2008_toyota_sienna","2009_toyota_sienna","2010_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":[]}