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Service bulletins for the 2009 Toyota Sienna

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.

255 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Cooling system are shown. Show all

Bulletins, newest first
T-TT-0628-202020-11-30. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS. TT: HVAC drain tube is found to be blocked/clogged.
T-TT-0468-17 Rev2020-08-17. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. TT: HVAC drain tube is found to be blocked/clogged.
TC-14-0342014-12-16. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. TOYOTA: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. AN ENHANCEMENT WARRANTY PROGRAM, ON CERTAIN VEHICLES, HAS BEEN ANNOUNCED TO PROVIDE WARRANTY COVERAGE FOR REPAIRS RELATING TO LEAKAGE OR SEEPAGE ENGINE OIL COOLER PIPE. MODEL 2007-11 SIENNA, 2008-11 HIGHLANDER, 2009-11 VENZA, 2011 HIGHLANDER HYBRID. *PE
TC-10-0322010-10-13. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS. 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

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.