1995 PONTIAC BONNEVILLE cooling

The traction control system warning light may come on
for the following reasons:
0 If you turn the system off by pressing the button
located on the center console, the warning light will
come on and stay on.
To turn the system back on,
press the button again. The warning light should go
off. (See “Traction Control System” in the Index for
more information.)
If there’s a brake system problem that is specifically
related to traction control, the traction control system
will turn off and the warning light
will come on. If
your brakes begin to overheat, the traction control
system will turn
off and the warning light will come
on until
your brakes cool down.
engine-related problem, the system will turn
off and
the warning light will come on.
If the traction control system is affected by an
If the traction control system warning light comes on
and stays on for an extended period of time when the
system is turned on, your vehicle needs service.
Engine Coolant Temperature Warning
Light
1
This light tells you that your
engine coolant has
overheated
or your radiator 4
cooling fans are not
working.
If you have been operating your vehicle under normal
driving conditions, you should pull off the road, stop
your vehicle and turn the engine
off as soon as possible.
In the section “Problems on the Road”, this manual
explains what to do. See “Engine Overheating” in the
Index.
Some clusters with gages
do not have a coolant
temperature warning light. In those clusters a
CHECK
GAGES warning light will alert you of a possible
coolant heating problem.
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Standard Climate Control
sf Fan Control: The control marked with the fan
symbol is
the fan control. Turning the control to the right
(clockwise) will increase the fan speed, to the left
(counter-clockwise) will decrease the fan speed. The fan is
always running unless the mode control is moved to OFF.
Temperature Control: The center control regulates the
temperature
of the air coming through the system. Turn
it toward the blue area for cooler air.
Turn it toward the
red area for warmer air.
Mode Control: The right control has settings for air
conditioning and non-air conditioning modes.
The mode
control allows
you to choose the direction of air
delivery.
There are three air conditioning settings,
MAX, A/C and
Bi-level.
MAX: This setting provides maximum cooling with the
least amount
of work. MAX recirculates much of the air
inside your vehicle
so it cools quickly. If used for- long
periods, the air may become too cold and dry.
NC: Use A/C for normal cooling on hot days. This
setting cools the air entering your vehicle and directs it
through the instrument panel outlets. Adjust the
temperature
and fan speed for your comfort.
lfl Bi-Level: Use on cool, but sunny days. This
setting directs air into your vehlcle in two ways. Cool air
is directed to the upper portion of your body through the
middle instrument panel outlets, while warmed air is
directed to the floor.
The
air conditioner compressor operates in all air
conditioner positions. It also operates in defrost and
defog when required by conditions. 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.
/J Vent: For mild outside temperatures, when little
heating or cooling is needed, use the vent setting. Air
will
flow through the middle instrument panel outlets.
La
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Electronic Climate Control (Option)
With this system, you can control the ventilation,
heating and
air conditioning in your vehicle, or you can
use the automatic setting. When
you leave your vehicle
the system control setting
is remembered the next time
you start your
car.
AUTOMATIC OPERATION: When the system is set
for
AUTO, sensors will control the air delivery mode.
Air will come from the floor, middle and windshield
outlets. The fan speed will
vary as the system maintains
the selected temperature setting.
To find your comfort
zone, start with 75" temperature
setting, allow about
20 minutes for the system to
regulate. Press the
TEMP button up or down to adjust
the temperature setting
if necessary, If you choose the
temperature
setting of 60°F (1 5 O C), the system will
remain at that maximum cooling setting and will not
regulate the fan speed.
If you choose the temperature setting
of 90°F (33"C), the system
will remain at that
maximum heating setting and will
not regulate the fan
speed. Choosing either maximum setting
will not cause
the system to heat or cool any faster.
Pressing the
AUTO button will display the requested
temperature, fan speed and air delivery mode for
5
seconds, then change to display the outside air
temperature. Be careful not to put anything over the
sensor located in the middle
of the instrument panel near
the windshield, or over the sensor in the
grille above the
radio. These sensors are used by the automatic system to
regulate temperature.
The exterior temperature display sensor is in front of the
car, near the radiator,
This displayed temperature is most
accurate when the vehicle is moving. During stops,
or
while idling, the display shows the previous driving
temperature for best system control.
To avoid blowing cold air in cold weather, the system
will delay turning on the
fan until warm air is available.
The length
of delay depeds on outside air temperature,
engine coolant temperature, and time since the engine
was last started. Pushing the
fan button will override this
delay and change the fan
to a selected single speed.
If you leave your vehicle, the control setting is
remembered the next time you start your engine.
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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.
a
a
0
a
Know how to go uphill. Shift down to DRIVE (D).
This will 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 faIIing rocks area, or
winding
roads. Be alert to these and take appropriate
action.
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Parking on Hills
You really should not park your vehicle, with a trailer
attached, on
a hill. If something goes wrong, your rig
could start to move. People can be injured, and both
your vehicle and the trailer can be damaged.
But
if you ever have to park your rig on a hill, here’s
how to do it:
1. Apply your regular brakes, but don’t shift into
PARK (P) yet.
2. Have someone place chocks under the trailer wheels.
3. When the wheel chocks are in place, release the
regular brakes until the chocks absorb the load.
4. Reapply the regular brakes. Then apply your parking
brake, and then shift to
PARK (P).
5. Release the regular brakes.
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 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.
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If you get the overheat warning with no sign of steam,
try
this for a minute or so:
1. Turn off your air conditioner.
2. Turn on your heater to full hot at the highest fan
speed and open the window as necessary.
3. If you’re in a traffic jam, shift to NEUTRAL (N);
otherwise, shift to the highest gear while driving --
AUTOMATIC OVERDRIVE (@) or DRIVE (D).
If y’ou no longer have the overheat warning, you can
drive. Just to be safe, drive slower for about ten minutes.
If the warning doesn’t come back
on, you can drive
normally.
If the warning continues, pull over, stop, and park your
vehicle right away.
If there’s still
no sign of steam, you can idle the engine
for two or three minutes while you’re parked, to see if
the warning stops. But then, if you still have the
warning,
turn off the engine and get everyone out of the
vehicle until it cools down.
You may decide not to lift the hood but to get service
help right away.
Cooling System
When you decide it’s safe to lift the hood, here’s what
you’ll see:
Coolant recovery tank
0 Radiator pressure cap
0 Electric engine fans
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If the coolant inside the coolant recovery tank is boiling,
don’t
do anything else until it cools down.
The coolant level should be at or above the FULL
COLD mark. If it isn’t, you may have a leak in the
radiator hoses, heater hoses, radiator, water
pump or
somewhere else in the cooling system.
NOTICE:
Engine damage from running your engine
without coolant isn’t covered by your warranty.
If there seems to be no leak with the engine an, check to
see if the electric engine fans are running. If the engine
is overheating, both fans should be running. If they
aren’t,
your vehicle needs service.
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When the coolant in the coolant recovery tank is at
FULL COLD, start your vehicle.
If the overheat warning continues, there’s one more
thing you can try. You can add the proper coolant mix
directly to the radiator but be sure the cooling system is
cool before you do it.
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