GMC 2003 Envoy - Manual (Page 148)

* Keep (he hOQd and tnprt air inleJs free ol ice^ snoWn
Of any other obstruction (such аь leavES). The
haater and detfosler wll[ woft( Tar betler, reducing
the chance of fogging the inside of your windows.
* When you enter a vehicle in cold weatheri turn ihe
fan knob all the way to the right tor a tgw moments
before driving. This helps ctear the intake ducts
of snow and moisture, and reduces the chance of
fogging the mstde of your window.
• Keep the a if path under the ironit seats clear of
objects. This helps air to circuíale ihroughoul
your vehicle
• Adding ouisjde equipn^enl to the front ol your
vehicle^ such as hood-air dEflectora, rmay aliect the
perforrTtance of the heating and air conditioning
syslem. Check with your dealer before adding
epuipmant to the outside of your vehicle.
Operation Tips Dual Automatic Climate Control
System
Vour vehicle may havo the optional dual automatic
climate control system. With this sy&tcm you can conirol
the heating, cooHng and venlilation for your vehicle.
When your vehicle is first sfaried, iha display will show
the driver's Icmpanature setting and air delivery rnode for
five seconds. Then it will show (hg outside temperalure.
O
(Ofi): Press ihts bulton to turn off tho entire climate
control syslem. Outside air will still enter the vehicle,
and will be directed to ihe floor. Press ihe AUTO button,
Iha mode button, Ihe fan arrows, or either temperature
knob to tom the system on.
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