GMC 2007 Savana - Manual (Page 163)

Rear Heating System
Your vehicle may have a rear heating system that
allows you to adjust the amount of air flowing
into the rear of the vehicle, from the front-seating
area. This feature works with the main
climate-control system in your vehicle.
REAR HEAT: The thumbwheel for this system is
located to the left of the audio system.
9
(Fan): Turn the thumbwheel up or down to
increase or decrease the amount of heated air sent
to the rear-seating area.
HI: Turn the thumbwheel to this position to supply
the most amount of heat to the rear-seating area.
LO: Turn the thumbwheel to this position to supply
the least amount of heat to the rear-seating area.
OFF: Turn the thumbwheel to this position to turn
the rear heating system off.
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