cooling Oldsmobile Silhouette 2001 Owner's Manuals

Service Station Guide
Oil Viscosity
Engine Oil
See Section 6
Engine Oil Dipstick
See Section 6
Cooling System
See Section 5
Secondary
Hood Release
See Section 6
Windshield Washer
Fluid
See Section 6
Spare Tire Pressure
See Section 5
Battery
See Section 6
Hood Release
See Section 6
Tire Pressure
See Section 6
For
a More
Detailed Look at
What's Under the Hood
See Section 6
Fuel
Use unleaded only.
See Section 6
for octane ratings.

2-35
Liftgate
To unlock the liftgate from the outside, turn the key
in the cylinder clockwise. To lock the liftgate using the
key, turn the key counterclockwise.
Open the liftgate using the handle located above the
license plate. Once slightly opened, the liftgate will rise
by itself. Lamps in the rear of the vehicle will come on,
illuminating the rear cargo area. See ªInterior Lampsº in
the Index.
NOTICE:
Be sure there are no overhead obstructions, such
as a garage door, before you open the liftgate.
You could slam the liftgate into something and
break the glass.
CAUTION:
It can be dangerous to drive with the liftgate
open because carbon monoxide (CO) gas can
come into your vehicle. You can't see or smell
CO. It can cause unconsciousness and even death.
If you must drive with the liftgate open or if
electrical wiring or other cable connections
must pass through the seal between the body
and the liftgate:

Make sure all other windows are shut.

Turn the fan on your heating or cooling
system to its highest speed with the setting
on bi
-level (outside air button is pressed).
That will force outside air into your vehicle.
See ªComfort Controlsº in the Index.

If you have air outlets on or under the
instrument panel, open them all the way.
See ªEngine Exhaustº in the Index.

3-2
Comfort Controls
This section tells you how to make your air system
work for you.
With this system, you can control the heating, cooling
and ventilation in your vehicle. Your vehicle also has
a flow
-through ventilation system described later in
this section.
Air Conditioning with Temperature Control
Fan Knob
The left knob is the fan knob and is used to select and
determine the force of the air flowing in. Turn the knob
clockwise to increase fan speed and counterclockwise to
decrease fan speed. The fan must be turned on for the
air conditioning compressor to operate.Temperature Knob
The center knob controls the temperature of the air
coming through the system. Turn it clockwise (toward
the red area) for warmer air. Turn it counterclockwise
(toward the blue area) for cooler air.
Mode Knob
The right knob is used to select and determine the
direction of the air flowing into the vehicle.
UPPER: This setting directs outside air through
the instrument panel outlets.
BI-LEVEL: This setting directs outside air into
your vehicle in two ways. Cooler air is directed toward
your upper body through the front instrument panel
outlets, while warmed air is directed through the heater
ducts at your feet.
LOWER: This setting brings in most of the
air through the floor ducts. This setting is also used to
send air to the rear of the vehicle. Keep the area under
the front seats free of objects that could obstruct airflow
to the rear of the vehicle.

3-3
DEFOG: This setting directs air to the windshield
and through the floor ducts. This mode is useful during
cold or inclement weather because of your vehicle's
larger windshield area.
DEFROST: This setting directs most of the
air to the windshield and side window vents.
Mode Buttons
OUTSIDE AIR: Press this button (the light
will glow) to send outside air into your vehicle.
Using this setting while trying to defrost or defog the
windows will help clear the vents of moisture. Press the
RECIRCULATION button (the light on the OUTSIDE
AIR button will go off) to limit outside air entering the
vehicle. When the LOWER, DEFOG or DEFROST
setting is selected, the system will automatically go to
OUTSIDE AIR mode.
RECIRCULATION: Press this button
(the light will glow) to limit the amount of outside air
entering your vehicle by recirculating much of the air
inside your vehicle. You may use this setting to limit
odors entering your vehicle. Press the OUTSIDE AIR
button (the light on the RECIRCULATION button will
go off) to let outside air circulate into the vehicle.Operating the Heating/Ventilation/Air Conditioning
(HVAC) system in the RECIRCULATION mode
may cause fogging of the vehicle's windows when the
weather is cold and damp. To clear the fog, switch the
HVAC system to either the DEFOG or DEFROST
mode and increase the fan speed. To avoid re
-fogging
of the windows, operate the HVAC system in the
OUTSIDE AIR mode.
Air Conditioning
On very hot days, your vehicle will cool down more
quickly and economically if you open the windows
long enough to let hot, inside air escape. For all
settings, adjust the temperature knob and fan speed
as desired.
To get maximum cooling or a quick cool
-down on
very hot days, press the A/C and RECIRCULATION
buttons (the lights will glow) and turn the temperature
knob counterclockwise (toward the blue area). Adjust
the mode knob to direct the air to the desired location.
This setting should not be used for long periods of time
because the air may become too cold and dry. Push the
A/C button again (the light will go off) to turn off the
air conditioning.

3-4
When the air conditioner compressor is on, you may
sometimes notice slight changes in your vehicle's engine
performance and power. This is normal. The system is
designed to help fuel economy while it maintains the
desired cooling level.
The air conditioner removes moisture from the air,
so you may sometimes notice water dripping from
under your vehicle's engine compartment when it is
idling or after it has been turned off. This is normal.
Heating
Turn the temperature knob clockwise (toward the
red area) to warm the air.
In the LOWER setting, outside air will be brought in
and sent through the floor outlets. The heater works
best if you keep your windows closed while using it.
The BI
-LEVEL setting is designed for use on sunny
days when the air is only moderately warm or cool.
On days like these, the sun may adequately warm your
upper body, but your lower body may not be warm
enough. For the best results, turn the temperature knob
to the middle position, and then adjust it for comfort.Your vehicle has a computer controlled transaxle
designed to warm up the engine faster when the outside
temperature is 35
F (2
C) or colder. You may notice
that the transaxle will shift at a higher vehicle speed
until the engine is warmed up. This is a normal
condition designed to provide heat to the passenger's
compartment and defrost the windows more quickly.
If you have the optional engine coolant heater and use
it during cold weather, 0
F (
-18
C) or lower, your
heating system will provide heat more quickly because
the engine coolant is already warmed. See ªEngine
Coolant Heaterº in the Index.
Defogging and Defrosting
To rapidly defrost the windshield, turn the temperature
knob all the way clockwise (to the red area) and turn
the mode knob to DEFROST. Adjust the fan to the
highest speed.
To keep the windshield clear and bring in heated air through
the heater ducts, turn the mode knob to DEFOG.
When the temperature outside is above freezing, the air
conditioner compressor will run in these settings to help
remove moisture from the air.

3-7
Mode Buttons
OUTSIDE AIR: Press this button (the light
will glow) to send outside air into your vehicle.
Using this setting while trying to defrost or defog the
windows will help clear the vents of moisture. Press the
RECIRCULATION button (the light on the OUTSIDE
AIR button will go off) to limit outside air entering the
vehicle. When the LOWER, DEFOG or DEFROST
setting is selected, the system will automatically go to
OUTSIDE AIR mode.
RECIRCULATION: Press this button (the light
will glow) to limit the amount of outside air entering
your vehicle by recirculating much of the air inside your
vehicle. You may use this setting to limit odors entering
your vehicle. Press the OUTSIDE AIR button (the light
on the RECIRCULATION button will go off) to let
outside air circulate into the vehicle.
Operating the Heating/Ventilation/Air Conditioning
(HVAC) system in the RECIRCULATION mode
may cause fogging of the vehicle's windows when the
weather is cold and damp. To clear the fog, switch the
HVAC system to either the DEFOG or DEFROST mode
and increase the fan speed. To avoid re
-fogging of the
windows, operate the HVAC system in the OUTSIDE
AIR mode.
Air Conditioning
On very hot days, your vehicle will cool down more
quickly and economically if you open the windows
long enough to let hot, inside air escape. For all
settings, adjust the temperature knob and fan speed
as desired.
To get maximum cooling or a quick cool
-down on very
hot days, press the A/C and RECIRCULATION buttons
(the lights will glow) and move the temperature lever
down (toward the blue area). Adjust the mode knob to
direct the air to the desired location. This setting should
not be used for long periods of time because the air may
become too cold and dry. Push the A/C button again
(the light will go off) to turn off the air conditioning.
When the air conditioner compressor is on, you may
sometimes notice slight changes in your vehicle's engine
performance and power. This is normal. The system is
designed to help fuel economy while it maintains the
desired cooling level.
The air conditioner removes moisture from the air, so
you may sometimes notice water dripping from under
your vehicle's engine compartment when it is idling or
after it has been turned off. This is normal.

4-24
If you drive regularly in steep country, or if you're
planning to visit there, here are some tips that can
make your trips safer and more enjoyable.

Keep your vehicle in good shape. Check all fluid
levels and also the brakes, tires, cooling system
and transaxle. These parts can work hard on
mountain roads.

Know how to go down hills. The most important
thing to know is this: let your engine do some of
the slowing down. Shift to a lower gear when you
go down a steep or long hill.
CAUTION:
If you don't shift down, your brakes could get so
hot that they wouldn't work well. You would then
have poor braking or even none going down a hill.
You could crash. Shift down to let your engine
assist your brakes on a steep downhill slope.
CAUTION:
Coasting downhill in NEUTRAL (N) or with the
ignition off is dangerous. Your brakes will have to
do all the work of slowing down. They could get so
hot that they wouldn't work well. You would then
have poor braking or even none going down a hill.
You could crash. Always have your engine running
and your vehicle in gear when you go downhill.

Know how to go uphill. You may want to shift down to
a lower gear. The lower gears help cool your engine and
transaxle, and you can climb the hill better.

Stay in your own lane when driving on two
-lane
roads in hills or mountains. Don't swing wide or cut
across the center of the road. Drive at speeds that let
you stay in your own lane.

As you go over the top of a hill, be alert. There could be
something in your lane, like a stalled car or an accident.

You may see highway signs on mountains that warn
of special problems. Examples are long grades, passing
or no
-passing zones, a falling rocks area or winding
roads. Be alert to these and take appropriate action.

4-36 Driving with a Trailer
CAUTION:
If you have a rear-most window open and you
pull a trailer with your vehicle, carbon monoxide
(CO) could come into your vehicle. You can't
see or smell CO. It can cause unconsciousness
or death. See ªEngine Exhaustº in the Index.
To maximize your safety when towing a trailer:

Have your exhaust system inspected for
leaks, and make necessary repairs before
starting on your trip.

Keep the rear
-most windows closed.

If exhaust does come into your vehicle
through a window in the rear or another
opening, drive with your front, main
heating or cooling system on and with the
fan on any speed. This will bring fresh,
outside air into your vehicle. Do not use
RECIRCULATION because it only
recirculates the air inside your vehicle.
See ªComfort Controlsº in the Index.
Towing a trailer requires a certain amount of experience.
Before setting out for the open road, you'll want to get
to know your rig. Acquaint yourself with the feel of
handling and braking with the added weight of the
trailer. And always keep in mind that the vehicle you
are driving is now a good deal longer and not nearly as
responsive as your vehicle is by itself.
Before you start, check the trailer hitch and platform
(and attachments), safety chains, electrical connector,
lamps, tires and mirror adjustment. If the trailer has
electric brakes, start your vehicle and trailer moving
and then apply the trailer brake controller by hand to
be sure the brakes are working. This lets you check
your electrical connection at the same time.
During your trip, check occasionally to be sure that the
load is secure, and that the lamps and any trailer brakes
are still working.

4-39 When You Are Ready to Leave After
Parking on a Hill
1. Apply your regular brakes and hold the pedal down
while you:

Start your engine;

Shift into a gear; and

Release the parking brake.
2. Let up on the brake pedal.
3. Drive slowly until the trailer is clear of the chocks.
4. Stop and have someone pick up and store the chocks.
Maintenance When Trailer Towing
Your vehicle will need service more often when you're
pulling a trailer. See the Maintenance Schedule for more
on this. Things that are especially important in trailer
operation are automatic transaxle fluid (don't overfill),
engine oil, belts, cooling system and brake system.
Each of these is covered in this manual, and the Index
will help you find them quickly. If you're trailering,
it's a good idea to review these sections before you
start your trip.
Check periodically to see that all hitch nuts and bolts
are tight.

5-
5-1
Section 5 Problems on the Road
Here you'll find what to do about some problems that can occur on the road.
5
-2 Hazard Warning Flashers
5
-2 Other Warning Devices
5
-3 Jump Starting
5
-9 Towing Your Vehicle
5
-9 Engine Overheating5
-12 Cooling System
5
-20 If a Tire Goes Flat
5
-21 Changing a Flat Tire
5
-32 Compact Spare Tire
5
-33 If You're Stuck: In Sand, Mud, Ice or Snow