2006 Toyota Sienna Owners Manual - Page 556

06 SIENNA_U (L/O 0603) 3. Remove the filter case from the filter outlet as shown in the illustration. 4. Remove case. the filter from the filter 5. Inspect the filter on the surface. If it is dirty, it should be replaced. INFORMATION The air filter should be installed properly in position. The use of air conditioning with the air filter removed may cause deteriorated dustproof performance and then affect air conditioning performance. 324 2006 SIENNA from March '06 Prod. (OM45443U)