1996 CHEVROLET SUBURBAN Rear defrost

These symbols are on some of your controls:
I
Windshield
Wiper Windshield
Washer
Rear Wlndow Washer
I
Rear Window
Defroster
w
I
Windshield
Defroster
U
Ventilating Fan
These symbols are used on warning and indicator lights:
I -k 4cccy
Engine Coolant
Temperature
BRAKE
I Brake
I I
Battery Charging
System
ANTI-
I LOCK
I I 4 Wheel
Anti-Lock
Fuel
Parking Brake Release
I\J
Rear Window
Wiper
Engine Oil
Pressure
SHIFT
Shift Light
viii
. ~ .. ProCarManuals.com

fuel economy. This setting also cools the air the fastest and can be used to
keep “unwanted odors” and/or dust from entering the vehicle. When using
the air conditioner, turn off recirculation after the vehicle reaches
a
comfortable interior temperature.
When the right knob
on the control panel is between HEAT and DEFROST,
the recirculation feature will not function.
NC - This button, between the middle and right knobs, allows the air
coming into your vehicle
to be cooled and directed through the instrument
panel vents. This setting
is useful for normal cooling on hot days. When you
first
use A/C with the recirculation button pushed in, turn off recirculation
as soon as the vehicle reaches a comfortable interior temperature.
Engine Coolant Heater
If your vehicle has a diesel engine, it is equipped with an engine coolant
heater. An engine coolant heater is optional
on gas engine vehicles. If you
use the engine coolant heater before starting your engine (in cold weather
(20” F, (-8” C), or lower) your heating system will produce warmer air
faster, to heat
the passenger compartment in cold weather.
The use of an engine coolant heater also reduces
the time it takes for the
engine to reach normal operating temperature, and shortens the time it takes
the heater
to reach full output. For more information, See “Engine Coolant
Heater” in the Index.
Diesel Engine Heater Output
If you idle your diesel engine 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, your heater should blow
out warmer air. If it doesn’t, your coolant
level may be too low. See “Engine Coolant” in the Index to see how to
check your coolant level.
Rear Air Conditioning and Heating Systems (Suburban)
If your vehicle has either or both of these systems, you can increase and
decrease the air flow at the rear vents. Depending
on the system you have
and the setting selected, you can send cooled or heated air to the rear of the
vehicle.
Rear Air Conditioning (Without Rear Heater)
If your vehicle has rear air conditioning (without rear heater), the controls
are located above the front and second seats. The front and rear overhead
controls let
you increase and decrease the air flow at the rear vents.
3-4
ProCarManuals.com

You can turn the defogger off at any time by pressing the button again. The
defogger will shut itself off after several minutes,
so that the glass does not
get too hot. If the defogger shuts off, and the window still isn’t clear, turn on
the defogger again.
Ventilation System
Your vehicle’s
ventilation system
supplies outside air
to
the inside of your
vehicle when it is
moving. With the side
windows closed, air
will flow into the front
air inlet grilles,
through the vehicle,
and
out the rear air
exhaust valve.
Outside air will also enter the vehicle when the heater or the air
conditioning fan is running, unless
you have the recirculation button pushed
in. For more information see “Recirculation Button” in this section.
Ventilation Tips
0
0
0
0
Keep the hood and front air inlet free of ice, snow, or any other
obstruction (such as leaves). The heater and defroster will work far
better, reducing the chance
of fogging the inside of your windows.
When you enter a vehicle in cold weather, turn the blower fan to
HI for
a few moments before driving off. This helps clear the intake ducts of
snow and moisture, and reduces the chance of fogging the inside
of
your windows.
Keep the air path under the front seats clear
of objects. This helps air to
circulate throughout your vehicle.
Some models also have vents under the front seats. Keep the area at the
outlet grills clear
of floor mats or other objects. This will ensure proper
air
flow to the rear floor area.
3-8
ProCarManuals.com