No inside outside air switch? Montana sv6 2005

[Dhaniel]

Hi getting an exhaust smell when following vehicles is there really no inside outside air switch on Montana sv6 2005?

 

[melsg5]

page 3-26 of the owners manual. Under the fan speed control
http://www.vadengmpp.com/owners-manual/pontiac/2005-Pontiac-Montana.pdf