Service bulletins for the 2004 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.
257 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Cooling system are shown. Show all
| 0506 | 2006-01-19. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. WARRANTY COVERAGE ENHANCEMENT - ISOLATED REPORTS FROM EXTREME COLD CLIMATE AREAS THAT THE RADIATOR MAY CRACK AT THE BASE OF ONE OR MORE OF THE RADIATOR TUBES, RESULTING IN COOLANT LEAKAGE - CUSTOMER SUPPORT PROGRAM. *TT |
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| 04017 | 2004-12-02. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. LIMITED SERVICE CAMPAIGN (LSC) 40I TO REPLACE THE RADIATOR. COLD WEATHER CONDITIONS MAY CAUSE THE BASE OF THE RADIATOR WALL TO CRACK, RESULTING IN THE LEAKAGE OF ENGINE COOLANT. *TT THIS IS AN AMENDED VERSION. *TT |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.