1996 CHEVROLET TAHOE heater

Downloaded from www.Manualslib.com manuals search engine 3. If your enginestill won’t start (or starts but then
stops), wait
15 seconds and start over.
When
the engine starts, let go of the key and the
accelerator pedal.
NOTICE:
Your engine is designed to work with the
electronics in your vehicle.
If you add electrical
parts or accessories, you could change the way
the engine operates. Before adding electrical
equipment, check with your dealer.
If you don’t,
your engine might not perform properly.
If you ever have to have your vehicle towed, see
the part of this manual that tells how to do it
without damaging your vehicle. See “Towing
Your Vehicle’’ in the Index.
Engine Coolant Heater (Option)
c
In very cold weather,
0°F (-lS°C) or colder,
the engine coolant heater
can help.
You’ll get easier starting and better fuel economy during
engine warm-up. Usually, the coolant heater should be
plugged in a minimum of four hours prior to starting
your vehicle.
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Downloaded from www.Manualslib.com manuals search engine To use the coolant heater:
1. Turn off the engine.
2. Open the hood and unwrap the electrical cord.
3. Plug it into a normal, grounded 110-volt AC outlet.
4 CAUTION:
Plugging the cord into an ungrounded outlet
could cause an electrical shock. Also, the wrong
kind
of extension cord could overheat and cause
a fire. You could be seriously injured. Plug the
cord into
a properly grounded three-prong
110-volt
AC outlet. If the cord won’t reach, use ,a
heavy-duty three-prong extension cord rated
for
at least 15 amps.
4. After you’ve used the coolant heater, be sure to
store the cord as it was before to keep it away
from moving engine parts.
If you don’t, it could .@
be damaged.
How long should you keep the coolant heater plugged
in? The answer depknds
on the outside temperature, the
kind
of oil you have, and some other things. Instead of
trying to list everything here, we ask that you contact
your
GM dealer in the area where you’ll be parking your
vehicle. The dealer can give you the best advice for that
particular area.

Downloaded from www.Manualslib.com manuals search engine Mode Knob
The right knob on the control panel allows you to
choose the direction
of air delivery. The control knob
can
be placed in any position between any two mode
settings to blend the flow of air.
+e
/J VENT This setting directs air through the
instrument panel outlets.
+’ VENT/HEAT Use this setting to divide airflow
between the floor outlets and instrument panel outlets.
+No HEATER: This setting directs air through the
floor outlets.
+fl DEFOG: This setting directs air to the heater
outlets and toward the windshield.
.+.
w.
DEFROST This setting directs air toward
the windshield.
Optional Climate Control System
Fan Knob
The knob on the left side of the heating system control
panel controls the fan speed. The
knob has four speed
positions. To increase airflow, move the knob toward
HI.
To decrease airflow, move it toward LO. To turn the
fan off, move the knob to
OFF. If you have the air
conditioner on, moving
the fan knob to OFF also turns
off the
A/C compressor.
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Downloaded from www.Manualslib.com manuals search engine Temperature Knob
The middle knob on the control pane-1 lets you select
the relative temperature of the air flowing into the
passenger area of your vehicle. This knob will allow you
to adj.ust the relative air temperature independently of
the function knob setting, Move the knob clockwise
toward the red area for warmer air. Move the knob
counterclockwise toward the blue area for cooler air.
Mode Knob
The right knob on the control panel allows you to
choose the direction of air delivery. The control knob
can be placed in any position between any two mode
settings to blend the flow of air.
+e
# VENT This setting directs air through the
instrument panel outlets.
+’ VENTMEAT Use this setting to divide airflow.
between the floor outlets and instrument panel outlets.
+e
HEATER: This setting directs air through the
floor outlets.
+# DEFOG: This setting directs air to the heater
outlets and toward the windshield.
9 DEFROST This setting directs air toward
the windshield.
w.
Rear Air Conditioning and Heating Systems
(Suburban)
’
If your vehicle has either or both of these systems, you
can increase and decrease the airflow 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 airflow at the rear vents.
To operate the rear air conditioning system, the front air
conditioning system must be on. With the front air
conditioning system off, the rear system controls can be
used to circulate air in the rear of the vehicle.
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Downloaded from www.Manualslib.com manuals search engine Rear Heater (Without Rear Air Conditioning)
If you have a rear heater
(without rear air
conditioning), the control
switch is located on the
instrument panel.
To increase and decrease the flow of heated air to the
rear floor vents, move the switch marked REAR HEAT
to the blower speed you want.
The knob has three speed positions. To increase the flow
of heated air, move the switch toward HIGH. To
decrease the
flow of heated air, move it toward LOW. To
turn the fan off, move the switch to OFF.
Rear Air Conditioning and Rear Heater
If your vehicle has the rear air conditioning and rear
heater system combination, controls are provided to
regulate temperature, location and speed
of the airflow.
To adjust the air temperature, turn the temperature knob
on the right of the control panel.
For warmer air, turn the knob clockwise toward the red,
and for cooler air, turn the knob counterclockwise.
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Downloaded from www.Manualslib.com manuals search engine To regulate the airflow location, adjust the center knob
on the control panel. Turn the knob clockwise for floor
vent airflow or counterclockwise for headliner vent
airflow. Generally, the upper vents are used for air
conditioning and the floor vents for heating. The control
knob can
be set to any blend setting.
To adjust the aifflow speed, turn the fan control knob
on the left side of the control panel to the desired
blower setting.
To activate the rear control, move the fan knob on the
front control
to REAR CNTL.
Air Conditioning
On hot days, open the windows long enough to let hot
air inside escape. This reduces the time it takes for your
vehicle to cool down. Then keep your windows closed
for the air conditioner to work its best.
The recirculation button, between the fan and temperature
knobs, allows the air inside your vehicle to be
recirculated. This setting helps to maximize your air
conditioner’s performance and your vehicle’s 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 HEATER and DEFROST, the
recirculation feature will not function.
The A/C button, between the temperature and mode
knobs, allows the air coming into your vehicle to be
cooled. This setting is useful for normal cooling on hot
days. When
you use A/C with the recirculation button
pushed in, turn off recirculation as soon as the vehicle
reaches a comfortable interior temperature.
The
rear control works just like the front control. It will
allow second seat passengers to adjust the controls as
they desire.

Downloaded from www.Manualslib.com manuals search engine With the A/C on, move the temperature knob to MAX
for maximum cooling. This setting also puts the system
in the recirculation mode and helps to maximize your air
conditioner’s performance and your vehicle’s fuel
economy. This setting also cools the air the fastest. After
the vehicle’s interior reaches a comfortable temperature,
move the temperature knob clockwise to place the air
conditioning system in the normal mode.
The heater works best if you keep your windows closed
while using it. On cold days, use the HEATER or
VENT/HEAT setting with the temperature knob in the
red area.
If you use the engine coolant heater before starting your
engine (in cold weather (20°F (-8OC) 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. Ventilation System
For mild outside temperature when little heating or
cooling is needed, use VENT to direct outside air
through your vehicle. Air will flow through the
instrument panel outlets.
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
air exhaust valves.
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
on
the recirculation button, see “Air Conditioning” earlier
in this section.
- .. G 3-7

Downloaded from www.Manualslib.com manuals search engine Your vehicle has air outlets in the center and on the sides
of your instrument panel. You can move the outlets from
side to side or up and down to direct the flow
of air, or
close the outlets altogether. When you close an outlet, it
will increase the flow
of air coming out of any outlets
that
are open. These outlets do not completely shut off
airflow when in a closed vent position.
0
0
Ventilation Tips
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.
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.
efogging and Defrosting
D
On cool, humid days, use DEFOG to keep the
windshield and side windows clear. Use DEFROST to
remove fog or ice from the windshield in extremely
humid or cold conditions. Use DEFROST with the
temperature knob toward the red area and the fan control
toward HI.
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