2003 CHEVROLET EXPRESS CARGO VAN fuse

Front Seats
Manual Seats
The bucket seats can be adjusted forward or rearward
with the lever located at the front of the seat.To adjust the seat, pull the lever up to release the seat
bottom. Slide the seat to where you want it and then
release the lever. Try to move the seat with your body,
to make sure the seat is locked into place.
{CAUTION:
You can lose control of the vehicle if you try to
adjust a manual driver's seat while the vehicle
is moving. The sudden movement could startle
and confuse you, or make you push a pedal
when you don't want to. Adjust the driver's
seat only when the vehicle is not moving.
1-3

Sun Visors
To block out glare, you can swing down the visors.
You can also swing them from side to side.
Visor Vanity Mirror
Some visors have mirrors built in, with or without lamps.
Just lift the mirror cover on each visor to turn the
lamps on, if you have them.
Theft-Deterrent Systems
Vehicle theft is a big business, especially in some cities.
Although your vehicle has a number of theft-deterrent
features, we know that nothing we put on it can make it
impossible to steal. However, there are ways you
can help.
Passlockž
Your vehicle is equipped with the Passlockž
theft-deterrent system.
Passlock
žis a passive theft-deterrent system. Passlockž
enables fuel if the ignition lock cylinder is turned with
a valid key. If a correct key is not used or the ignition
lock cylinder is tampered with, fuel is disabled.
During normal operation, the SECURITY light will
go off approximately ®ve seconds after the key is
turned to RUN.
If the engine stalls and the SECURITY light ¯ashes,
wait until the light stops ¯ashing before trying to restart
the engine. Remember to release the key from
START as soon as the engine starts.
If the engine is running and the SECURITY light comes
on, you will be able to restart the engine if you turn
the engine off. However, your Passlock
žsystem is not
working properly and must be serviced by your
dealer. Your vehicle is not protected by Passlock
žat
this time. You may also want to check the fuse.
See
Fuses and Circuit Breakers on page 5-92. See your
dealer for service.
2-19

Turn 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 ®nished, the lever will return
automatically.
An arrow on the instrument
panel cluster will ¯ash 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 ¯ash. Hold it there until you
complete your lane change. The lever will return by itself
when you release it.
If you move the lever all the way up or down, and the
arrow ¯ashes 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 or a blown fuse.
See
Fuses and Circuit Breakers on page 5-92.
Turn Signal On Chime
If your turn signal is left on for more than 3/4 of a mile
(1.2 km), a chime will sound at each ¯ash of the
turn signal. To turn off the chime, move the turn signal
lever to the off position.
Headlamp High/Low Beam Changer
23
(Headlamp High/Low Beam Changer):To
change the headlamps from low to high beam, pull the
mutlifunction lever all the way toward you. Then
release it.
When the high beams are
on, this light on the
instrument panel cluster
also will be on.
3-8

Accessory Power Outlets
Your vehicle may have accessory power outlets.
You can plug accessory electrical equipment into an
accessory power outlet. Just pull on the outlet cover to
remove it and follow the proper installation instructions
that are included with any electrical equipment that
you install.
The accessory power outlets are located on the driver's
and passenger's side of the front storage compartment.
These circuits are protected by a fuse and have
maximum current levels.
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:When using an accessory power outlet,
maximum electrical load must not exceed 20 amps.
Always turn off any electrical equipment when
not in use. Leaving electrical equipment on for
extended periods will drain your battery.
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.
Ashtrays and Cigarette Lighter
Your vehicle may have this feature.The front ashtray
can be placed in the instrument panel extension at the
center of the instrument panel. Lift up on the ashtray
door to open it.
Notice:Don't put papers or other ¯ammable
items into your ashtrays. Hot cigarettes or other
smoking materials could ignite them, causing
a damaging ®re.
To use the cigarette lighter, push it in all the way and let
go. When it's ready, it will pop back out by itself.
Notice:Don't hold a cigarette lighter in with your
hand while it is heating. If you do, it won't be able to
back away from the heating element when it's
ready. That can make it overheat, damaging the
lighter and the heating element.
3-18

Trailer Wiring Harness
The optional heavy-duty trailer wiring package includes
a seven-wire harness assembly at the rear of the
vehicle and a four-wire harness assembly under the left
hand side of the instrument panel. The seven-wire
harness assembly is taped together and located in a
frame pocket at the driver side rear left corner of
the frame. The seven-wire harness includes a
30-amp feed wire. Both harnesses come without
connectors and should be wired by a quali®ed electrical
technician. The technician can use the following
color code chart when connecting the wiring harness to
your trailer and trailer brake controller.Seven-Wire Harness·Light Green: Back-up lamps
·Brown: Parking lamps
·Yellow: Left stoplamp and turn signal
·Dark Green: Right stoplamp and turn signal
·Dark Blue: Use for electric trailer brakes
·Orange: Trailer accessory
·White (heavy gage): Ground wire
Four-Wire Harness (Trailer Brake Controller)
·Black: Ground
·Red/White Stripe: Fused Battery
·Dark Blue: Trailer Brake Feed
·Light Blue: Fused Stop/CHMSL
4-44

Windshield Wiper Blade Replacement..............5-55
Tires..............................................................5-56
In¯ation -- Tire Pressure................................5-56
Dual Tire Operation.......................................5-57
Tire Inspection and Rotation...........................5-58
When It Is Time for New Tires.......................5-59
Buying New Tires.........................................5-60
Uniform Tire Quality Grading..........................5-61
Wheel Alignment and Tire Balance..................5-62
Wheel Replacement......................................5-62
Tire Chains..................................................5-63
If a Tire Goes Flat........................................5-64
Changing a Flat Tire.....................................5-65
Appearance Care............................................5-80
Cleaning the Inside of Your Vehicle.................5-80
Care of Safety Belts......................................5-83
Weatherstrips...............................................5-83Cleaning the Outside of Your Vehicle..............5-83
Sheet Metal Damage.....................................5-86
Finish Damage.............................................5-86
Underbody Maintenance................................5-87
Chemical Paint Spotting.................................5-87
Vehicle Care/Appearance Materials..................5-88
Vehicle Identi®cation......................................5-90
Vehicle Identi®cation Number (VIN).................5-90
Service Parts Identi®cation Label.....................5-90
Electrical System............................................5-91
Add-On Electrical Equipment..........................5-91
Headlamp Wiring..........................................5-91
Windshield Wiper Fuses................................5-91
Fuses and Circuit Breakers............................5-92
Capacities and Speci®cations..........................5-97
Normal Maintenance Replacement Parts.........5-100
Section 5 Service and Appearance Care
5-2

CAUTION: (Continued)
·
Be sure to use the proper nuts, bolts and
other fasteners. ªEnglishº and ªmetricº
fasteners can be easily confused. If you
use the wrong fasteners, parts can later
break or fall off. You could be hurt.
Adding Equipment to the Outside of
Your Vehicle
Things you might add to the outside of your vehicle can
affect the air¯ow around it. This may cause wind
noise and affect windshield washer performance. Check
with your dealer before adding equipment to the
outside of your vehicle.
Fuel
Use of the recommended fuel is an important part of the
proper maintenance of your vehicle.
Gasoline Octane
Use regular unleaded gasoline with a posted octane
of 87 or higher. If the octane is less than 87, you may
get a heavy knocking noise when you drive. If this
occurs, use a gasoline rated at 87 octane or higher as
soon as possible. Otherwise, you might damage
your engine. A little pinging noise when you accelerate
or drive uphill is considered normal. This does not
indicate a problem exists or that a higher-octane fuel is
necessary. If you are using 87 octane or higher-octane
fuel and hear heavy knocking, your engine needs
service.
5-4

Electrical System
Add-On Electrical Equipment
Notice:Don't add anything electrical to your
vehicle unless you check with your dealer ®rst.
Some electrical equipment can damage your vehicle
and the damage wouldn't be covered by your
warranty. Some add-on electrical equipment can
keep other components from working as they
should.
Your vehicle has an air bag system. Before attempting
to add anything electrical to your vehicle, see
Servicing Your Air Bag-Equipped Vehicle on page 1-73.
Headlamp Wiring
The headlamp wiring is protected by a circuit breaker in
the lamp switch. An electrical overload will cause the
lamps to ¯icker on and off, or in some cases to remain
off. If this happens, have your headlamp wiring
checked right away.
Windshield Wiper Fuses
The windshield wiper motor is protected 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 the circuit is 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 the windshield wipers. If
the overload is caused by some electrical problem and
not snow, etc., be sure to get it ®xed.
5-91