light CHEVROLET C3500 HD 2001 4.G User Guide

2-30 Headlamp High/Low-Beam Changer
To change the headlamps from low to high beam or high
to low beam, pull the multifunction lever all the way
toward you. Then release it.
When the high beams are
on, this light located on the
instrument panel cluster
also will be on.
Windshield Wipers
You control the windshield
wipers by turning the knob
with the wiper symbol on it.For a single wiping cycle, turn the knob 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
knob on MIST longer.
You can set the wiper speed for a long or short delay
between wipes. Use this setting in light rain or snow.
Turn the knob to choose the delay time. The closer to
LOW, the shorter the delay.
For steady wiping at low speed, turn the knob to the LOW
position. For high
-speed wiping, turn the knob further,
to HIGH. To stop the wipers, turn the knob to OFF.
Damaged wiper blades may prevent you from seeing
well enough to drive safely. To avoid damage, be sure to
clear ice and snow from the wiper blades before using
them. If they are frozen to the windshield, carefully
loosen or thaw them. If your blades do become
damaged, get new blades or blade inserts.
Heavy ice or snow can overload your wipers. The
windshield wiper motor is protected from overload by a
circuit breaker and a fuse. If the motor overheats due to
heavy snow, etc., the wiper will stop until the motor
cools. Although protected from electrical overload,
overload due to heavy snow, etc. may cause wiper
linkage damage. Always clear ice and heavy snow from
the windshield before using your windshield wipers.

2-34
Using Cruise Control on Hills
How well your cruise control will work on hills depends
upon your speed, load and the steepness of the hills.
When going up steep hills, you may have to step on the
accelerator pedal to maintain your speed. If the
steepness of the hill causes the vehicle speed to drop
more than 15 mph (24 km/h) below the set speed, your
cruise control will automatically disengage. When going
downhill, you may have to brake or shift to a lower gear
to keep your speed down. Of course, applying the brake
takes you out of cruise control. Many drivers find this to
be too much trouble and don't use cruise control on
steep hills.
Ending Cruise Control
There are two ways to turn off the cruise control:

Step lightly on the brake pedal or

move the cruise switch to OFF.
Erasing Speed Memory
When you turn off the cruise control or the ignition,
your cruise control set speed memory is erased.Exterior Lamps
Your parking lamp and headlamp knob is located on the
driver's side of your instrument panel.

2-35
Turn the knob clockwise to the parking lamp symbol, to
turn on the following:

Parking Lamps

Sidemarker Lamps

Clearance Lamps

Taillamps

License Plate Lamps

Instrument Panel Lights
Turn the knob clockwise again to the master lighting
symbol to turn on all the lamps listed as well as
the headlamps.
Turn the knob counterclockwise, to OFF, to turn off
your lamps.
You can turn your headlamps from high to low beams
by pulling on the turn signal/multifunction lever.
Headlamps On Reminder
A tone will sound when your headlamps are turned on
and the key is turned to OFF, LOCK or ACCESSORY.
If you need to use your headlamps when the key is
turned to OFF, LOCK or ACCESSORY, the buzzer can
be turned off by turning the thumbwheel next to the
parking lamp/headlamp knob all the way down.
Daytime Running Lamps
Daytime Running Lamps (DRL) can make it easier for
others to see the front of your vehicle during the day.
DRL can be helpful in many different driving
conditions, but they can be especially helpful in the
short periods after dawn and before sunset. Fully
functional daytime running lights are required on all
vehicles first sold in Canada.
The DRL system will make your headlamps come on
at a reduced brightness when the following conditions
are met:

the ignition is on,

the headlamp switch is off and

the parking brake is released.
When the DRL are on, only your headlamps will be on.
The taillamps, sidemarker and other lamps won't be on.
Your instrument panel won't be lit up either.
When it begins to get dark, your DRL indicator light is a
reminder to turn your headlamp knob on. The other lamps
that come on with your headlamps will also come on.

2-36
When you turn off the headlamp knob, the regular lamps
will go off, and your headlamps will change to the
reduced brightness of DRL.
To idle your vehicle with the DRL off, set the parking
brake. The DRL will stay off until you release the
parking brake.
As with any vehicle, you should turn on the regular
headlamp system when you need it.
Interior Lamps
Instrument Panel Intensity Control
The instrument panel intensity control is located to the
right of the parking lamps and headlamp knob.
Turn the thumbwheel up to adjust the instrument panel
lights. Turn the thumbwheel up to the first notch to
return the radio display and shift position indicator LED
display to full intensity when the headlamps or parking
lamps are on. To turn on the dome lamps (with the
vehicle doors closed) turn the thumbwheel up to the
second notch position.
Illuminated Entry
Your vehicle is equipped with an illuminated
entry feature.
When a door is opened, the dome lamps will come on if
the dome lamp button is out. When all the doors are
closed, or the dome lamp button is pressed in, the
lamps will stay on for a short period of time and will
then go out.
Front Reading Lamps (If Equipped)
If your vehicle has reading
lamps, press the button next
to the lamp to turn the lamp
on or off. The lamps can be
adjusted to point in the
direction you want.

2-37 Dome Lamp
The dome lamp will come on when you open a door.
You can also turn the dome lamp on by turning the
thumbwheel, located next to the parking lamps and
headlamp knob, all the way up to the second notch.
In this position, the dome lamp will remain on whether a
door is opened or closed.
You can use the DOME OVERRIDE button, located
below the parking lamp and headlamp knob, to set the
dome lamp to come on automatically when a door is
opened, or to remain off. To turn the lamp off, press the
button ªinº. Press the button again and return it to the
ªoutº position to set the dome light to come on.
Cargo Lamp (If Equipped)
Press the top of the switch
to turn the cargo lamp on.
Press the bottom of the
switch to turn it off.
The dome lamp must be on and one of the doors open
for the cargo lamp to work.

2-42 Armrest Storage Compartment
(If Equipped)
Your vehicle may have a center armrest storage
compartment in the front bench seat.
To open it, fold down the armrest and press the latch
handle located at the front of the armrest. Then, let the
lid pop up and swing open.
The storage compartment has a cassette/compact disc
holder. The holder will store up to five compact disc
cases and up to six cassette tape cases.The storage compartment also has a folding writing
table on top of the armrest lid.
To use the writing table, pull the latch at the rear of the
table and swing the writing table forward. Use it to hold
a pad of paper and a pen.
Ashtrays and Cigarette Lighter
The ashtray is located at the bottom of the instrument
panel. Pull on the notch in the ashtray door to open it.
NOTICE:
If you store paper or other things that burn in
your ashtrays, they could be set on fire by
cigarettes or other smoking materials. That could
cause a fire and possibly damage your vehicle.
Do not store papers and other things that burn in
your ashtrays.
To remove the front ashtray, press the retainer spring
and pivot the ashtray toward you. To reinstall the
ashtray, place the bottom part of the ashtray on the pivot
bar at the bottom of its mounting on the instrument
panel. Then turn the ashtray back to its original position.

2-43 Accessory Power Outlets
Two accessory power outlets are located near the
cigarette lighter. Use these outlets to power mobile
telephones or other devices designed to operate with
vehicle electrical systems.
Certain power accessory plugs may not be compatible to
the power accessory outlet and could result in blown
vehicle or adapter fuses. If you experience a problem,
see your dealer for additional information on the power
accessory plugs.
NOTICE:
Power outlets are designed for accessory plugs
only. Do not hang any type of accessory or
accessory bracket from the plug. Improper use of
the power outlet can cause damage not covered
by your warranty.
Sun Visors
To block out glare, you can swing down the visors. You
can also swing them out to help block glare at the front
and side windows.
Some visors have an extender on the inside edge. When
the visor is down, pull the extender out for extra glare
coverage at the front or side.
Some visors have mirrors with lamps. If the mirror has
lamps, they will come on when you lift the mirror cover.

2-48
Warning Lights, Gages
and Indicators
This part describes the warning lights and gages that
may be on your vehicle. The pictures will help you
locate them.
Warning lights and gages can signal that something is
wrong before it becomes serious enough to cause an
expensive repair or replacement. Paying attention to
your warning lights and gages could also save you or
others from injury.
Warning lights come on when there may be or is a
problem with one of your vehicle's functions. As you
will see in the details on the next few pages, some
warning lights come on briefly when you start the
engine just to let you know they're working. If you are
familiar with this section, you should not be alarmed
when this happens.
Gages can indicate when there may be or is a problem
with one of your vehicle's functions. Often gages and
warning lights work together to let you know when
there's a problem with your vehicle.When one of the warning lights comes on and stays on
when you are driving, or when one of the gages shows
there may be a problem, check the section that tells you
what to do about it. Please follow this manual's advice.
Waiting to do repairs can be costly
-- and even
dangerous. So please get to know your warning lights
and gages. They're a big help.
Safety Belt Reminder Light
When the key is turned to RUN or START, a tone will
come on for about eight seconds to remind people to
fasten their safety belts, unless the driver's safety belt is
already buckled.
The safety belt light will
also come on and stay on
for about 20 seconds,
then it will flash for
about 55 seconds.
If the driver's belt is already buckled, neither the tone
nor the light will come on.

2-49 Charging System Indicator Light
This light should come on
briefly when you turn on the
ignition, before starting the
engine, as a check to show
you it is working.
After the engine starts, the light should go out. If it stays
on or comes on while you are driving, you may have a
problem with your charging system. It could indicate a
problem with the generator drive belt, or some other
charging system problem. Have it checked right away.
Driving while this light is on could drain your battery.
If you must drive a short distance with this light on, it
helps to turn off all your accessories, such as the radio
and the air conditioner.
Voltmeter
When your engine is not
running, but the ignition is
in RUN, this gage shows
your battery's state of
charge in DC volts.
When the engine is running, the gage shows the
condition of the charging system. Readings between
the low and high warning zones indicate the normal
operating range.
Readings in the low warning zone may occur when a
large number of electrical accessories are operating in
the vehicle and the engine is left at an idle for an
extended period. This condition is normal since the
charging system is not able to provide full power at
engine idle. As engine speeds are increased, this
condition should correct itself as higher engine speeds
allow the charging system to create maximum power.

2-50
You can only drive for a short time with the reading in
either warning zone. If you must drive, turn off all
unnecessary accessories.
Readings in either warning zone indicate a possible
problem in the electrical system. Have the vehicle
serviced as soon as possible.
Brake System Warning Light
When the ignition is on, the brake system warning light
will come on when you set your parking brake. The light
will stay on if your parking brake doesn't release fully.
If it stays on after your parking brake is fully released, it
means you have a brake problem.
Your vehicle's hydraulic brake system is divided into
two parts. If one part isn't working, the other part can
still work and stop you. For good braking, though, you
need both parts working well.
If the warning light comes on, there could be a brake
problem. Have your brake system inspected right away.
United States Canada
This light should come on briefly when you turn the
ignition key to RUN. If it doesn't come on then, have it
fixed so it will be ready to warn you if there's a problem.
If the light comes on while you are driving, pull off the
road and stop carefully. You may notice that the pedal is
harder to push. Or, the pedal may go closer to the floor. It may
take longer to stop. If the light is still on, have the vehicle
towed for service. See ªTowing Your Vehicleº in the Index.
CAUTION:
Your brake system may not be working properly
if the brake system warning light is on. Driving
with the brake system warning light on can lead
to an accident. If the light is still on after you've
pulled off the road and stopped carefully, have
the vehicle towed for service.