climate control CHEVROLET EXPRESS CARGO VAN 2003 1.G Owners Manual

Seats and Restraint Systems........................... 1-1
Front Seats
............................................... 1-3
Rear Seats
............................................... 1-6
Safety Belts
.............................................1-10
Child Restraints
.......................................1-34
Air Bag System
.......................................1-63
Restraint System Check
............................1-74
Features and Controls..................................... 2-1
Keys
........................................................ 2-2
Doors and Locks
....................................... 2-7
Windows
.................................................2-16
Theft-Deterrent Systems
............................2-19
Starting and Operating Your Vehicle
...........2-20
Mirrors
....................................................2-31
OnStar
žSystem
......................................2-35
Storage Areas
.........................................2-36
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-4
Climate Controls
......................................3-19
Warning Lights, Gages and Indicators
.........3-23
Audio System(s)
.......................................3-40
Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and Your Vehicle
..... 4-2
Towing
...................................................4-29Service and Appearance Care.......................... 5-1
Service
..................................................... 5-3
Fuel
......................................................... 5-4
Checking Things Under the Hood
................. 5-9
All-Wheel Drive
........................................5-46
Rear Axle
...............................................5-47
Front Axle
...............................................5-48
Noise Control System
...............................5-49
Bulb Replacement
....................................5-50
Windshield Wiper Blade Replacement
.........5-55
Tires
......................................................5-56
Appearance Care
.....................................5-80
Vehicle Identi®cation
.................................5-90
Electrical System
......................................5-91
Capacities and Speci®cations
.....................5-97
Normal Maintenance
Replacement Parts
..............................5-100
Maintenance Schedule..................................... 6-1
Maintenance Schedule
................................ 6-2
Customer Assistance Information.................... 7-1
Customer Assistance Information
.................. 7-2
Reporting Safety Defects
............................ 7-8
Index................................................................ 1
2003 Chevrolet Express Owner ManualM

Vehicle Damage Warnings
Also, in this book you will ®nd these notices:
Notice:These mean there is something that could
damage your vehicle.
A notice will tell you about something that can
damage your vehicle. Many times, this damage would
not be covered by your warranty, and it could be costly.
But the notice will tell you what to do to help avoid
the damage.
When you read other manuals, you might see
CAUTION and NOTICE warnings in different colors
or in different words.
You'll also see warning labels on your vehicle. They use
the same words, CAUTION or NOTICE.
Vehicle Symbols
Your vehicle has components and labels that use
symbols instead of text. Symbols, used on your vehicle,
are shown along with the text describing the operation
or information relating to a speci®c component, control,
message, gage or indicator.
If you need help ®guring out a speci®c name of
a component, gage or indicator, reference the
following topics:
·Seats and Restraint Systems in Section 1
·Features and Controls in Section 2
·Instrument Panel Overview in Section 3
·Climate Controls in Section 3
·Warning Lights, Gages and Indicators in Section 3
·Audio System(s) in Section 3
·Engine Compartment Overview in Section 5
iv

Engine Exhaust
{CAUTION:
Engine exhaust can kill. It contains the gas
carbon monoxide (CO), which you can't see or
smell. It can cause unconsciousness and death.
You might have exhaust coming in if:
·Your exhaust system sounds strange or
different.
·Your vehicle gets rusty underneath.
·Your vehicle was damaged in a collision.
·Your vehicle was damaged when driving
over high points on the road or over road
debris.
·Repairs weren't done correctly.
·Your vehicle or exhaust system had been
modi®ed improperly.
If you ever suspect exhaust is coming into your
vehicle:
·Drive it only with all the windows down to
blow out any CO; and
·Have your vehicle ®xed immediately.
Running Your Engine While You
Are Parked
It's better not to park with the engine running. But if you
ever have to, here are some things to know.
{CAUTION:
Idling the engine with the climate control
system off could allow dangerous exhaust into
your vehicle. See the earlier Caution under
ªEngine Exhaust.º
Also, idling in a closed-in place can let deadly
carbon monoxide (CO) into your vehicle even if
the climate control fan is at the highest setting.
One place this can happen is a garage.
Exhaust Ð with CO Ð can come in easily.
NEVER park in a garage with the engine
running.
Another closed-in place can be a blizzard.
See ªWinter Drivingº in the Index.
2-30

Outside Convex Mirror
Your passenger's side mirror may be convex. A convex
mirror's surface is curved so you can see more from
the driver's seat.
{CAUTION:
A convex mirror can make things (like other
vehicles) look farther away than they really are.
If you cut too sharply into the right lane, you
could hit a vehicle on your right. Check your
inside mirror or glance over your shoulder
before changing lanes.
Outside Heated Mirrors
Your outside mirrors can
be defrosted by pressing
the button located near the
fan control.
An indicator light in the button will light while the heated
outside mirrors are activated.
Your rear window defogger comes on while the heated
mirrors are on. If your vehicle has a rear window
defogger, see ªRear Window Defoggerº in
Climate
Control System on page 3-19.
2-34

Instrument Panel Overview...............................3-4
Hazard Warning Flashers................................3-5
Other Warning Devices...................................3-6
Horn.............................................................3-6
Tilt Wheel.....................................................3-7
Turn Signal/Multifunction Lever.........................3-7
Exterior Lamps.............................................3-13
Interior Lamps..............................................3-16
Accessory Power Outlets...............................3-18
Ashtrays and Cigarette Lighter........................3-18
Climate Controls............................................3-19
Climate Control System.................................3-19
Rear Heating System....................................3-20
Rear Air Conditioning and Heating System.......3-21Warning Lights, Gages and Indicators.............3-23
Instrument Panel Cluster................................3-24
Speedometer...............................................3-25
Safety Belt Reminder Light.............................3-26
Air Bag Readiness Light................................3-27
Air Bag Off Light..........................................3-28
Charging System Light..................................3-29
Voltmeter Gage............................................3-30
Brake System Warning Light..........................3-31
Anti-Lock Brake System
Warning Light...........................................3-32
Engine Coolant Temperature Gage..................3-32
Low Coolant Warning Light............................3-33
Malfunction Indicator Lamp.............................3-33
Section 3 Instrument Panel
3-1

The main components of your instrument panel are the
following:
A. Air Outlets
B. Turn Signal/Multifunction Lever
C. Instrument Panel Cluster
D. Shift Lever
E. Climate Control System
F. Audio System
G. Headlamp and Parking Lamp Controls
H. Tow/Haul Mode Button
I. Rear Heating System (If Equipped)
J. Accessory Power Outlets/Cigarette Lighter
K. Storage CompartmentHazard Warning Flashers
Your hazard warning ¯ashers let you warn others. They
also let police know you have a problem. Your front
and rear turn signal lamps will ¯ash on and off.
3-5

Climate Controls
Climate Control System
With this system you can control the heating, cooling
and ventilation for your vehicle.
Turn the right knob clockwise or counterclockwise to
direct the air¯ow inside of your vehicle.To change the current mode, select one of the following:
H(Vent):This mode directs air to the instrument
panel outlets.
)(Bi-Level):This mode directs about half of the air
to the instrument panel outlets, then directs most of
the remaining air to the ¯oor outlets. Some air may be
directed toward the windshield.
6(Floor):This mode directs most of the air to the
¯oor outlets with some air directed to the outboard
outlets (for the side windows) and some air directed to
the windshield.
The right knob can also be used to select the defrost
mode. Information on defogging and defrosting can
be found later in this section.
9(Fan):Turn the left knob clockwise or
counterclockwise to increase or decrease the fan speed.
(Temperature Control):Turn the center knob
clockwise or counterclockwise to increase or decrease
the temperature inside your vehicle.
3-19

If your vehicle has air conditioning, your heating/air
conditioning controls will look like this:
On hot days, open the windows to let hot inside air
escape; then close them. This helps to reduce the time
it takes for your vehicle to cool down. It also helps
the system to operate more efficiently.
A/C (Air Conditioning):This setting will begin to cool
and dehumidify the air inside of your vehicle.
MAX A/C (Maximum Air Conditioning):Turn the right
knob to MAX A/C for maximum cooling. This setting
cools the air the fastest, by recirculating the inside air.
Rear Heating System
Your vehicle may have an optional rear heating system
that allows you to adjust the amount of air ¯owing
into the rear of the vehicle, from the front-seating area.
This feature works with the main climate-control
system in your vehicle.AUX (Auxiliary Heating System):The thumbwheel for
this system is located to the right of the audio system.
9(Fan):Turn the thumbwheel up or down to increase
or decrease the amount of heated air sent to the
rear-seating area.
9(Off):Turn the thumbwheel to this position to turn
off the rear heating system.
3-20

Rear Air Conditioning and Heating
System
Your vehicle may have a rear heating and
air-conditioning system. This system regulates the
temperature, the fan speed and the air delivery for the
rear-seat passengers only. It also works with the
main climate-control system in your vehicle.
Use this control panel when you would like to maintain
a separate temperature setting. Adjust the direction
of the air¯ow or adjust the fan speed for the rear-seat
passenger(s).The rear control panel for this system is located in the
second row behind the driver in the rear of your vehicle.
A rear-seat passenger can use this control panel to
personally adjust the temperature, the direction of the
air¯ow and the fan speed for the rear-seating area.
The fan knob located on the front climate control panel
must be turned to REAR CNTL to allow a rear-seat
passenger to use the control panel in the rear-seating
area. Performing this action disables the front control
panel. To return control to this panel, move the fan knob
out of REAR CNTL. Front Climate-Control Panel
Rear Climate-Control Panel
3-21

Turn the center knob clockwise or counterclockwise
to change the direction of the air¯ow in the
rear-seating area.
To change the current mode, select one of the following:
D(Vent):Use this mode to direct air to the upper
outlets, with a little air directed to the ¯oor outlets.
2(Floor):Use this mode to direct most of the air to
the ¯oor outlets.
9(Fan):Turn the left knob clockwise or
counterclockwise to HIGH, MED (Medium) or LOW to
increase or decrease the fan speed in the rear-seating
area. Turn the knob to OFF to turn off the fan.
(Temperature Control):To increase or decrease the
temperature for the rear of the vehicle, turn the right
knob located on the climate-control panel.
The air-conditioning system on the main climate-control
panel must be turned on to direct cooled air to the
rear of the vehicle. If it is not on, then the temperature
in the rear of the vehicle will remain at cabin
temperature.
Be sure to keep the area under the front seats clear of
any objects so that the air inside of your vehicle can
circulate effectively.For information on how to use the main climate-control
system, see
Climate Control System on page 3-19listed previously in this section. For information
on ventilation, see ªOutlet Adjustmentº earlier in this
section.
Defogging and Defrosting
Fog on the inside of windows is a result of high humidity
(moisture) condensing on the cool window glass. This
can be minimized if the climate control is used properly.
There are two modes to clear fog or frost from your
windshield and side windows.
Use the defog mode to clear the windows of fog or
moisture and warm the passengers. Use the defrost
mode to remove fog or frost from the windshield more
quickly. For best results, clear all snow and ice from the
windshield before defrosting.
Turn the knob on the right of the climate control panel
to select the defog or defrost mode.
-(Blend):With this setting, the outside air comes out
of both the ¯oor and defroster outlets. Adjust the
temperature knob for warmer or cooler air. The air
conditioning compressor may operate in this setting to
dehumidify the air.
1(Defrost):This setting operates the defroster.
Most of the air comes out near the windshield, with
some going to the ¯oor outlets and front side windows.
3-22