1997 OLDSMOBILE BRAVADA cooling

Resynchronization
Resynchronization may be necessary due to the security
method used by this system. The transmitter does not
send the same signal twice to the receiver. The receiver
will not respond to a signal
it has been sent previously.
This prevents anyone from recording and playing back
the signal from the transmitter.
To resynchronize your transmitter, stand close to your
vehicle and simultaneously press and hold the
LOCK
and UNLOCK buttons on the transmitter for not more
than five seconds. The door locks should cycle to
confirm synchronization.
If the locks do not cycle, see
your retailer for service.
Liftgate
It can be dangerous to drive with the rear
window or 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 rear window or liftgate
open or if electrical wiring or other cable
connections must pass through the seal between
the body and the rear window or liftgate:
0 Make sure all windows are shut.
0 Turn the fan on your heating or cooling
system to its highest speed with the setting
on
VENT. That will force outside air into
your vehicle. See “Comfort Controls” in
the Index.
instrument panel, open them
all the way.
0 If you have air outlets on or under the
See “Engine Exhaust” in the Index.
2-8
ProCarManuals.com

Comfort Controls Temperature Knob
With this system, you can control the heating, cooling
and ventilation
in your vehicle.
Climate Control System
Fan Control
The switch with the fan symbol changes the fan speed.
To increase the fan speed, move the switch upward
toward
HI. To decrease the fan speed, move the switch
downward toward
LO.
The upper knob regulates the temperature of the air
coming through the system. Turn the
knob clockwise for
warmer air. Turn the knob counterclockwise for cooler air.
Mode Knob
The lower knob allows you to choose the direction of
air delivery.
OFF: This setting turns the system off. Some outside air
will still enter the vehicle whenever the vehicle is
moving forward.
MAX A/C: This setting provides maximum cooling
with the least amount of work. MAX A/C recirculates
much of the air inside your vehicle
so it cools quickly.
A/C: This setting cools the air entering your vehicle and
directs
it through the instrument panel outlets.
+’ BI-LEVEL A/C: Air is delivered through the
heater
floor outlets as well as the instrument panel outlets.
/J VENT This setting directs airflow through the
instrument panel outlets. The air conditioning
compressor is not working when
VENT is selected.
+*
+e
3-2
ProCarManuals.com

e
+# HEATER: This setting directs warmed air through
the heater floor outlets and windshield defroster outlets.
we
+# BLEND: Airtlow is divided equally between the
heater floor outlet and the windshield defroster outlets.
%? DEFROST This setting directs most air through
the windshield defroster outlets and some through the
heater outlets.
Air Conditioning
On hot days, open the windows long enough to let hot
inside air 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.
For quick cool-down on very hot days, use
MAX A/C
with the temperature knob turned counterclockwise.
This setting should be used to keep odors and/or dust
from entering the vehicle. For normal cooling on hot
days, use A/C with the temperature knob turned
counterclockwise.
On cool but sunny days, use BI-LEVEL A/C to deliver
warm air to the floor and cooler air to the instrument
panel outlets.
When the air conditioner is on,
you may sometimes
notice slight changes
in your vehicle‘s engine speed and
power. This is normal because the system is designed to
cycle the compressor on and off to keep the
desired temperature.
Heating
The heater works best if you keep your windows closed
while using
it. On cold days, use HEATER with the
temperature knob turned clockwise.
BLEND is useful in
cool weather when you have fog or ice on the
windshield or side windows.
If you use the optional engine coolant heater before
starting your engine, your heating system will produce
warmer
air faster to heat the passenger compartment in
cold weather. See “Engine Coolant Heater” in the Tndex.
3-3
ProCarManuals.com

Ventilation System
For mild outside temperatures when little heating or
cooling is needed, use
VENT to direct outside air
through your vehicle. Airflow is through the instrument
panel outlets.
Your vehicle’s ventilation system supplies outside air to
the inside
of your vehicle when it is moving. When the
vehicle is not moving, you can get outside air to flow
through by selecting any mode and any
fm speed. You
will find air outlets in the center and
on the sides of
your instrument panel.
You can move the outlets 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.
Ventilation Tips
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, move the
fan control 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.
3-4
ProCarManuals.com

If the water isn’t too deep, then drive through it slowly. At
fast speeds, water splashes on your ignition system and
your vehicle can stall. Stalling can also occur
if you get
your tailpipe under water. And, as long
as your tailpipe is
under water, you‘ll never be able to stzt your engine.
When you go through water. remember that when your
brakes get wet,
it may take you longer to stop.
I
Driving through rushing water can be dangerous.
Deep water can sweep your vehicle downstream and you and your passengers could drown. If it’s
only shallow water, it can still wash away the
ground from under your tires, and you could lose
traction and roll the vehicle over. Don’t drive
through rushing water.
See “Driving Through Water‘. in the Index for more
information
on driving through water.
After Off-Road Driving
Remove any brush or debris that has collected on the
underbody, chassis or under the hood. These
accumulations can be a fire hazard.
After operation
in mud or sand, have the brake linings
cleaned and checked. These substances can cause
steering, suspension, wheels, tires and exhaust system
for damage. Also, check the fuel lines and cooling
system for any leakage.
2 (.lazing and uneven braking. Check the body structure,
Your vehicle will require more frequent service due to
off-road use. Refer to the Maintenance Schedule for
additional information.
4-27
ProCarManuals.com

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. (See “Off-Road
Driving”
in the Index for information about driving
off-road.)
Keep your vehicle in good shape. Check all fl~lid
levels and also the brakes, tires. cooling system and
transmission. 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.
A 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. 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
transmission, 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.
4-37
ProCarManuals.com

Driving with a Trailer
mmm
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 “Engine Exhaust” 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
MAX A/C because it only recirculates the
air inside your vehicle. (See
“ Comfort
Controls”
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.
Following Distance
Stay at least twice as far behind the vehicle ahead as you
would when driving your vehicle without a trailer. This
can help you avoid situations that require heavy braking
and sudden turns.
4-49
ProCarManuals.com

When You Are Ready to Leave After
Parking on a Hill
1. Apply your regular brakes and hold the pedal down
while you:
0 Start your engine;
0 Shift into a gear; and
0 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 transmission fluid (don’t
overfill), engine
oil, axle lubricant, belt, cooling system
and brake adjustment. 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.
4-52
ProCarManuals.com