Chevrolet 2000 C-Series, Owner'S Manual

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3-5
OFF
Press this button to turn the air conditioning/heating
system off. Pressing OFF will erase the present mode
of operation from the system’s memory. Outside air will
still come out of the heater outlet whenever the vehicle
is moving forward.
If the OFF button is pressed, you must press A/C,
MAX or one of the BLEND buttons to turn the system
back on.
Air Conditioning
When you first turn on your vehicle’s air conditioning,
open the windows long enough to clear the vehicle of
hot air, then close them. Using the MAX button can
also help. See “MAX Button” earlier in this section
for more information.
For normal cooling on hot days, use A/C with the
temperature selector toward C.
When you press the A/C button to turn the air
conditioner off, the system will operate in the vent
mode. When you turn the air conditioner back on, the
system will operate in the mode you last selected unless
the OFF button was pressed.
If your air conditioner develops high system pressure,
it will automatically go into the MAX mode and REC
will light on your display. The A/C system will remain
in the MAX mode, even if you press the MAX button,
until system pressure returns to a normal level.
Heating
On cold days, use HEATER with the temperature
selector all the way toward H. When the inside of the
vehicle has reached a comfortable temperature, maintain
it by using the temperature selector bar.
If your vehicle is equipped with a diesel engine, and the
engine has been idling for a long time when it’s cold
outside, your heater may blow out cool air. This is
normal. When you increase the engine speed under load,
your heater should blow out warmer air. If it doesn’t,
your coolant level may be low. See “Engine Coolant”
in the Index to check your coolant level.
While idling your diesel engine, you can use the
MAX button to recirculate the air in the cab to help
maintain interior heat. This will preserve engine
coolant temperature and cab heat when idling cannot
be avoided.
Using the MAX button while driving is not recommended
because interior window fogging can result.