2006 Toyota Tacoma Owners Manual - Page 661

06 01.06 LS19013a When installing the filter in the filter outlet, follow the instructions indicated on the label. 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. 2006 TACOMA from Jan.'06 Prod. (OM35865U) 239