GMC 2003 Envoy - Manual (Page 152)

Notice. Don't use a razor bladi? or aomething elo&
sharp on the InsJde of IK e rear wEndow, U you
do. you could cut or damage tho dofoggar and the
repairs would not be covered by your warranty.
Do not attach a temporary vehicle bcense, tape,
a decal or anything similar to the detogger grid.
D p npl attach a temporary vehicle llcerrse, tape, a tiecal
c?r anything similar lo ihe defogger grid.
Outlet Adjustment
Use the air outlets Jocated in the canter and on the side
o( your Inslnjrrtent panel lo direct the airflow.
Ventilation System
For mild outside tamperfllurfis when iiltie healing or
tooling is needed, use (ha veni setting to dirgct outside
air through your vehiple.
Vour vehicle's ventilation sy&lem supplies outside air lo
Ihe Inside oi your vehicle when it is moving. With the side
windows ctosBd. air will How into the Iront air inlet grilles,
through the vehicle and olit the air exhaust valves.
Outside air will atso entnr the vehicle when the heater
or the air condiUoning oompnessor is running, unless you
have Ihe necirculabon button pushed in.
* Keep Ihe hood and Front air inlets free of ice, snow,
or any other obstruction (such as leaves]. The
heatsr and dobusier will work lar better, reducing
the chance of logging the inside of your windows.
" When you enter a vehicle in cold weather, turn the
fan knob all the way to the righi for a few rnoments
before driving. This hptps dear the inlake ducts
of snow and moisture, and reduces Ihe chance of
togging Ihe inside of your window.
* Keep the air path under the front seals clear of
objects This helps air to circulate throughout
ycur vehicle.
* Adding outside equipment !0 the front of your
vehicle, such as hood-air dollectDrs, may affect the
perionnance of the healing and air condiliening
sysEem. Check wilh your dealer betore adding
equipment lo the outside of your vehicle.
Operation Tips
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