Downloaded from www.Manualslib.com manuals search engine Temperature Knob
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 NC: 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.
+e
/J VENT: This setting directs airflow through the
instrument panel outlets. The air conditioning
compressor is not working when VENT is selected.
+’ HEATER: This setting directs warmed air through
the heater floor outlets and windshield defroster outlets.
+e
0
w.
+’ BLEND: Airflow 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 (Option)
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.
If you have the “VORTEC”
4300 engine, 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.
3-3
Downloaded from www.Manualslib.com manuals search engine 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 Index.
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 fan 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.
3-4
Downloaded from www.Manualslib.com manuals search engine Turn Signals When Towing a Trailer
When you tow a trailer, your vehicle has to have extra
wiring and a heavy-duty turn signal flasher (included
in
the optional trailering package).
The green arrows on your instrument panel will flash
whenever you signal a turn or lane change. Properly
hooked up, the trailer lamps will also flash, telling other
drivers you’re about to turn, change lanes or stop.
When towing a trailer, the green arrows on your
instrument panel will flash for turns even if the bulbs on
the trailer are burned out. Thus, you may think drivers
behind
you are seeing your signal when they are not. It’s
important
to check occasionally to be sure the trailer
bulbs are still working.
Driving On Grades
Reduce speed and shift to a lower gear before you start
down a long or steep downgrade. If you don’t shift
down,
you might have to use your brakes so much that
they would get hot and no longer work well, On
a long uphill grade, shift down and reduce your
speed to around
45 mph (70 kdh) to reduce the
possibility of engine
and transmission overheating.
If you have an automatic transmission, you should use
DRIVE (D) when towing a trailer. Operating your
vehicle in DRIVE (D) when towing a trailer will
minimize heat buildup and extend the life of your
transmission. Or, if you have a manual transmission, it’s
better not to use FIFTH
(5), just drive in FOURTH (4)
(or, as you need to, a lower gear).
When towing at high altitude on steep uphill grades,
consider the following: Engine coolant will boil
at a
lower temperature than at normal altitudes. If you turn
your engine off immediately after towing at high altitude
on steep
uphill grades, your vehicle may show signs
similar to engine overheating. To avoid this, let the
engine run while parked (preferably on level ground)
with the automatic transmission in PARK
(P) (or the
manual transmission out of gear and the parking brake
applied) for
a few minutes before turning the engine off.
If you do get the overheat warning, see “Engine
Overheating’’
in the Index.
4-54
Downloaded from www.Manualslib.com manuals search engine 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;
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.
Trailer Wiring Harness
The eight-wire harness is stored under your vehicle
along
the rear frame crossmember. This harness has a
30-amp feed wire with an inline fuse located in the
instrument panel fuse block and no connector. It should
be wired by a qualified electrical technician. The
technician can use
the following color code chart when
connecting the wiring harness to your trailer.
0 DARK BLUE: Use for electric trailer brakes or
0 RED: Use for battery charging; it connects to the
LIGHT GREEN: Back-up lamps.
0 BROWN: Taillamps and parking lamps.
0 YELLOW Left stoplamp and turn signal.
0 DARK GREEN: Right stoplamp and turn signal.
0 WHITE (Heavy Gage): Ground wire.
0 WHITE (Light Gage): Auxiliary stoplamp.
Securely attach the harness to the trailer, then tape or
strap it to your vehicle’s frame rail. Be sure
you leave
it loose enough
so the wiring doesn’t bend or break,
but not so
loose that it drags on the ground. Store the
harness in its original place. Wrap the harness together
and tie
it neatly so it won’t be damaged.
auxiliary wiring.
starter solenoid.
4-56
Downloaded from www.Manualslib.com manuals search engine Engine Overheating
You will find a coolant temperature gage on your
vehicle’s instrument panel.
If Steam Is Coming From Your Engine
Steam from an overheated engine can burn you
badly, even if you just open the hood. Stay away
from the engine if you see or hear steam coming
from it. Just turn it
off and get everyone away
from the vehicle until it cools down. Wait until
there is
no sign of steam or coolant before
opening the hood.
If you keep driving when your engine is
overheated, the liquids in it can catch fire. You or
others could be badly burned. Stop your engine if
it overheats, and get out of the vehicle until the
engine is cool.
I NOTICE:
If your engine catches fire because you keep
driving with
no coolant, your vehicle can be
badly damaged. The costly repairs would not be
covered by your warranty.
5-11
Downloaded from www.Manualslib.com manuals search engine Fu
Use regular unleaded gasoline rated at 87 octane or
higher. At a minimum, it should meet specifications
ASTM
D4814 in the United States and CGSB 3.5-M93
in Canada. Improved gasoline specifications have been
developed by the American Automobile Manufacturers
Association (AAMA) for better vehicle performance
and engine protection. Gasolines meeting the AAMA
specification could provide improved driveability
and emission control system protection compared
to
other gasolines.
Be sure the posted octane is at least
87. If the octane is
less than 87, you may get a heavy knocking noise when
you drive. If it’s bad enough, it
can damage your engine.
If you’re using fuel rated at 87 octane or higher and you
still hear heavy knocking, your engine needs service.
But don’t worry if you hear a little pinging noise when
you’re accelerating or driving up
a hill. That’s normal,
and you don’t have
to buy a higher octane fuel to get rid
of pinging. It’s the heavy, constant knock that means
you have a problem. If
your vehicle is certified to meet California Emission
Standards (indicated on the underhood tune-up label), it
is designed to operate
on fuels that meet California
specifications. If such fuels are not available
in states
adopting California emissions standards, your vehicle
will operate satisfactorily on fuels meeting federal
specifications, but emission control system performance
may be affected. The malfunction indicator lamp on
your instrument panel may turn on and/or your vehicle
may fail a smog-check test. If this occurs, return
to your
authorized GM dealer for diagnosis to determine the
cause of failure. In the event it
is determined that the
cause of the condition is the type of fuels used, repairs
may not be covered by your warranty.
In Canada, some gasolines contain an octane-enhancing
additive called
MMT. If you use such fuels, your
emission control system performance may deteriorate
and the malfunction indicator lamp on your instrument
panel may turn on. If this happens, return
to your
authorized
GM dealer for service.
6-3
Downloaded from www.Manualslib.com manuals search engine Checking Things Under the Hood
To open the hood, first pull
the handle inside the vehicle
on the lower left side of the
instrument panel.
Then
go to the front of the vehicle and release the
secondary hood release. Lift
the hood, release the hood prop from its retainer and
put the hood prop into the slot in the hood. You may
have a lamp that comes on when you lift the hood.
-
A CAUTION:
Things that burn can get on hot engine parts and
start
a fire. These include liquids like gasoline,
oil, coolant, brake fluid, windshield washer and
other fluids, and plastic or rubber.
You or others
could be burned. Be careful not to drop or spill
things that will burn onto a hot engine.
6-7
Downloaded from www.Manualslib.com manuals search engine If an odor lingers after cleaning vomit or urine,
treat the area with a waterhaking soda solution:
1 teaspoon (5 ml) of baking soda to 1 cup (250 ml)
of lukewarm water.
0 If needed, clean lightly with solvent-type cleaner.
Combination Stains
Stains caused by candy, ice cream, mayonnaise, chili
sauce and unknown stains can be removed as follows:
Carefully scrape off excess stain, then clean with
cool water and allow to dry.
0 If a stain remains, clean it with solvent-type cleaner.
Cleaning Vinyl
Use warm water and a clean cloth.
Rub with a clean, damp cloth to remove dirt. You
may have to do it more than once.
Cleaning Leather
Use a soft cloth with lukewarm water and a mild soap or
saddle soap.
0 For stubborn stains, use a GM VinylILeather Cleaner
or equivalent product.
Never use oils, varnishes, solvent-based or abrasive
cleaners, furniture polish or shoe polish
on leather.
Soiled leather should be cleaned immediately. If
dirt is allowed to work into the finish, it can harm
the leather.
Cleaning the Top of the Instrument Panel
Use only mild soap and water to clean the top surfaces
of the instrument panel. Sprays containing silicones or
waxes may cause annoying reflections in the windshield
and even make it difficult
to see through the windshield
under certain conditions.
Things like tar, asphalt and shoe polish will stain if
you don’t get them off quickly. Use a clean cloth and
a GM Vinylkeather Cleaner or equivalent product.
6-55