
Turn SignaVMultifunction Lever
The lever on the left side of the steering column
includes your:
0 Turn Signal and Lane Changer
0 Headlamp High/Low beam Changer
0 Windshield Wipers
0 Windshield Washer
Cruise Control (Option)
Turn Signal and Lane Change Signals
The turn signal has two upward (for right) and two
downward (for left) positions. These positions allow
you
to signal a turn or a lane change.
To signal a turn, move the lever all the way up or down.
When the turn is finished, the lever will return automatically.\
7
An arrow on the instrument
panel will flash in the
direction of the turn or
lane change.
To signal a lane change,
just raise or lower the lever
until
the arrow starts to flash. Hold it there until you
complete your lane change. The lever will return by
itself when you release it.
2-33
ProCarManuals.com

As you signal a turn or a lane change, if the arrows flash
at twice the normal rate, a signal bulb may be burned
out and other drivers
may not see your turn signal.
If a bulb is burned out, replace it to help avoid an
accident. If the arrows don’t
go on at all when you
signal a turn, check for burned-out bulbs and a blown
fuse (see “Fuses and Circuit Breakers” in the Index).
Headlamp High/Low Beam Changer
To change the headlamps from low beam to high or high
to low, pull the multifunction lever all the way toward
you. Then release it.
When the high beams
are
on, this light on the
instrument panel also will be on.
Windshield Wipers
You control the windshield
wipers by turning the band
with the wiper symbol on it.
For a single wiping cycle, turn the band to MIST. Hold
it there until the wipers start, then let go. The wipers will
stop after one cycle.
If you want more cycles, hold the
band
on MIST longer.
You can set the wiper speed for a long or short delay
between wipes. This can be very useful
in light rain or
snow.
Turn the band to choose the delay time. The
closer to LOW, the shorter the delay.
2-34
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When the wheel is turned to full brilliance, and then into
the first detent position, the radio display and PRNDL
display will go to the day mode (full intensity). This is
known as “parade” mode. The rest
of the I/P
illumination will stay in the maximum dimming state
(full brilliance dimming). Turning the wheel up one
more detent will activate the interior dome light circuit
(with slightly higher effort).
The dome lights cannot be turned on by depressing the
dome light switch button, located below the parkhead
lamp switch knob. This switch is a dome lamp off
switch and will only interrupt inputs from the door jamb
switches, inhibiting interior light operation when
depressed. It will not inhibit the light function from the
I/P dimmer switch.
The delayed entry will allow
you to enter or exit your
vehicle with the lights staying
on for about 20 seconds
after the door
is closed or ignition is cycled.
Rotate the switch knob clockwise to the parking lamp
symbol to turn on:
0 Parking Lamps
0 Sidemarker Lamps
0 Taillamps
License Plate Lamps
Instrument Panel Lights
0 Ashtray Lamp
0 Glove Box Lamp
Rotate the switch
knob clockwise again to the master
lighting symbol to turn on all the lamps listed above as
well as the headlamps.
Rotate the switch counterclockwise to
OFF to turn off
your lamps and lights.
Rotate the thumb wheel next to the switch knob up to
adjust instrument panel lights. Rotate the thumb wheel
up to the first notch to return the radio display and
gearshift indicator Vacuum Fluorescence (VF) display
to full intensity when the headlamps or parking lamps
are on.
Rotate the thumb wheel up
to the second notch to
activate the interior dome lamps.
You can switch your headlamps from high to low beam
by pulling
on the turn signalhigh beam lever.
A circuit breaker protects your headlamps. If you have
an electrical overload, your headlamps will flicker on
and off. Have your headlamp wiring checked right away
if this happens.
ProCarManuals.com

Here are some tips on night driving.
0
0
0
0
0
0
0
Drive defensively.
Don’t drink and drive.
Adjust your inside rearview mirror to reduce the
glare from headlamps behind you.
Since you can’t see as well, you may need to
slow down and keep more space between you and
other vehicles.
Slow down, especially on higher speed roads. Your
headlamps can light up only
so much road ahead.
In remote areas, watch for animals.
If you’re tired, pull off the road
in a safe place and
rest.
Night Vision
No one can see as well at night as in the daytime. But as
we get older these differences increase. A 50-year-old
driver may require at least twice as much light to see the
same thing at night as
a 20-year-old.
What you do in the daytime can also affect your night
vision. For example, if you spend the day in bright
sunshine you are wise to wear sunglasses. Your eyes will have
less trouble adjusting to night.
But if you’re
driving, don’t wear sunglasses at night. They may cut
down on glare from headlamps, but they also make a lot
of things invisible.
You can be temporarily blinded by approaching
headlamps. It can take
a second or two, or even several
seconds, for your eyes
to readjust to the dark. When
you are faced with severe glare (as from a driver who
doesn’t lower the high beams, or a vehicle with
misaimed headlamps), slow down a little. Avoid staring
directly into the approaching headlamps.
Keep your windshield and all the glass on your vehicle
clean
-- inside and out. Glare at night is made much
worse by dirt on
the glass. Even the inside of the glass
can build up a film caused by dust. Dirty glass makes
lights dazzle and flash more than clean glass would,
making the pupils of your eyes contract repeatedly.
Remember that your headlamps light up far less
of a
roadway when you are in a turn or curve. Keep your
eyes moving; that way, it’s easier to pick out dimly
lighted objects. Just as your headlamps should be
checked regularly for proper aim,
so should your eyes
be examined regularly. Some drivers suffer from night
blindness
-- the inability to see in dim light -- and
aren’t even aware of it.
4-15
ProCarManuals.com

Hydroplaning
Hydroplaning is dangerous. So much water can build up
under your tires that they can actually ride on the water.
This can happen if the road
is wet enough and you’re
going fast enough. When your vehicle
is hydroplaning,
it has little or no contact with the road.
Hydroplaning doesn’t happen often. But it can
if your
tires do not have much tread
or if the pressure in one or
more
is low. It can happen if a lot of water is standing on
the road.
If you can see reflections from trees, telephone
poles or other vehicles, and raindrops “dimple” the
water’s surface, there could be hydroplaning.
Hydroplaning usually happens at higher speeds. There
just isn’t a hard and fast rule about hydroplaning. The
best advice is to slow down when
it is raining.
1 Driving Through Deep Standing Water
NOTICE:
If you drive too quickly through deep puddles
or standing water, water can come in through
your engine’s air intake and badly damage your
engine. Never drive through water that is slightly
lower than the underbody
of your vehicle. If you
can’t avoid deep puddles or standing water, drive
through them very slowly.
Some Other Rainy Weather Tips
0
0
0
Turn on your low-beam headlamps -- not just
your parking lamps
-- to help make you more visible
to others.
Besides slowing down, allow some extra following
distance. And be especially careful when you pass
another vehicle. Allow yourself more clear room
ahead, and be prepared to have your view restricted
by road spray.
Have good tires with proper tread depth. (See
“Tires” in the Index.)
4-18
ProCarManuals.com

Name
RH-HIBM
ECM-I
HORN
LH-HDLP
LH-HIBM
FUEL SOL
IGN-E
ECM-B
Circuits Protected
Right-hand High-beam Headlamp
(Export Only)
Ignition Coil, Crankshaft Position Sensor, VCM, Fuel Injectors,
Coil Driver
Horn Relay, Underhood Lamp(
s)
Left-hand Headlamp
(Export Only)
Left-hand High-beam Headlamp
(Export Only)
PCM, Fuel Solenoid Driver,
Engine Shutoff Solenoid
Air Conditioning Clutch Relay
Fuel Pump Relay, VCM, PCM,
Fuel Pump and Engine Oil
Pressure Switch
Capacities and Specifications
Replacement Parts
Replacement part numbers listed in this section are
based on the latest information available at the time of
printing, and are subject to change. If a part listed in this
manual is not the same as the part used in your vehicle
when
it was built, or if you have any questions, please
contact your GM truck dealer.
These specifications
are for information only. If you
have
any questions, see the service manual for the
chassis or refer to the body manufacturer’s publications.
6-64
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Lamp and Bulb Data
LAMP OR BULB
HEADLAMPS
2 Headlamp System (Sealed Beam System)
Low/High Beam
4 Headlamp System (Composite Headlamp System)
Low/High Beam
High Beam
LAMP OR BULB
EXTERIOR
Front Sidemarker Lamp
Front Park and Turn Lamp
Rear Parking Lamp
Rear Stop and
Turn Lamp
Back-up Lamp
Back-up Lamp
Rear Park, Stop, and
Turn Lamp
CHMSL
License Plate Lamp
Underhood Lamp
Reel Lamp
TRADE NO.
H6054
6052
9005
TRADE NO.
194
2357NA
3057
3057
3156 1156
1157 921
194
232
232
POWER RATING AT
12.8V, WATTS
35/65
51
60
QTY.
2
4
2
2
2
6-68
ProCarManuals.com

Halogen Bulbs ................................ 6-32 .
Hazard Warning Flashers .......................... 5-2
Head Restraints
................................. 1-5
Headlamps .................................... 2-39
Bulb Replacement
............................ 6-33
High/Low Beam Changer
...................... 2-34
OnReminder
................................ 2-40
Wiring
..................................... 6-59
Hearing Impaired. Customer Assistance
.............. 8-4
Heating
........................................ 3-7
High-Beam Headlamps
.......................... 2-34
Highway Hypnosis
.............................. 4-22
Hill and Mountain Roads
......................... 4-22
Hitches. Trailer
................................. 4-33
Hood
Checking Things Under
......................... 6-7
Prop
........................................ 6-8
Release
...................................... 6-7
Horn ......................................... 2-32
Hydroplaning
.................................. 4-18
Ignition Switch
................................ 2- 16
Ignition Transmission Lock Check
................. 7-47
Inflation. Tire
.................................. 6-42
Inside Daymight Rearview Mirror
................. 2-43
Inspections
.................................... 7-49
Brakesystem
................................ 7-50
Exhaust Systems
............................. 7-49
Radiator and Heater Hose
...................... 7-49
RearAxle
................................... 7-50 Steering
.................................... 7-49
Suspension
.................................. 7-49
Throttle Linkage
.............................. 7-49
Brightness Control
............................ 2-38
Cleaning
.................................... 6-52
Cluster ..................................... 2-48
FuseBlock
.................................. 6-60
Interior Lamps ................................. 2-40
.................................... J ack. Tire 5-25
Jump Starting
................................... 5-3
Keyless Entry System
........................... 2-6
Keys
.......................................... 2-2
Labels 4-27
Certification
................................. 4-27
CertificationEire
............................. 4-27
Service Parts Identification
..................... 6-58
Tire-Loading Information
...................... 4-27
Vehicle Identification Number
................... 6-58
Lamps
........................................ 2-38
Dome
...................................... 2-40
Interior
..................................... 2-40
OnReminder
................................ 2-40
Panel
....................................... 2-40
Underhood
.................................. 2-42
Leaving
Your Vehicle with the Engine Running ....... 2-26
Lighter ....................................... 2-45
9-5
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