engine CHEVROLET EXPRESS 2003 Owners Manual

Courtesy Transportation is available only at participating
GM dealers and all program options, such as shuttle
service, may not be available at every dealer. Please
contact your GM dealer for specic information
about availability. All Courtesy Transportation
arrangements will be administered by appropriate
dealer personnel.
Canadian Vehicles:For warranty repairs during the
Complete Vehicle Coverage period of the General
Motors of Canada New Vehicle Limited Warranty,
alternative transportation may be available under the
Courtesy Transportation Program. Please consult
your dealer for details.
General Motors reserves the right to unilaterally modify,
change or discontinue Courtesy Transportation at
any time and to resolve all questions of claim eligibility
pursuant to the terms and conditions described
herein at its sole discretion.Vehicle Data Collection and Event
Data Recorders
Your vehicle, like other modern motor vehicles, has a
number of sophisticated computer systems that monitor
and control several aspects of the vehicle’s performance.
Your vehicle uses on-board vehicle computers to monitor
emission control components to optimize fuel economy,
to monitor conditions for airbag deployment and, if so
equipped, to provide anti-lock braking and to help the
driver control the vehicle in difficult driving situations.
Some information may be stored during regular
operations to facilitate repair of detected malfunctions;
other information is stored only in a crash event by
computer systems, such as those commonly called event
data recorders (EDR).
In a crash event, computer systems, such as the Airbag
Sensing and Diagnostic Module (SDM) in your vehicle
may record information about the condition of the vehicle
and how it was operated, such as data related to
engine speed, brake application, throttle position, vehicle
speed, safety belt usage, airbag readiness, airbag
performance, and the severity of a collision. If your
vehicle is equipped with Stabilitrak
®, steering
performance, including yaw rate, steering wheel angle,
and lateral acceleration, is also recorded. This
information has been used to improve vehicle crash
performance and may be used to improve crash
performance of future vehicles and driving safety.
7-9

To contact NHTSA, you may either call the Auto Safety
Hotline toll-free at 1-800-424-9393 (or 366-0123 in
the Washington, D.C. area) or write to:
NHTSA, U.S. Department of Transportation
Washington, D.C. 20590
You can also obtain other information about motor
vehicle safety from the hotline.
Reporting Safety Defects to the
Canadian Government
If you live in Canada, and you believe that your vehicle
has a safety defect, you should immediately notify
Transport Canada, in addition to notifying General
Motors of Canada Limited. You may write to:
Transport Canada
330 Sparks Street
Tower C
Ottawa, Ontario K1A 0N5
Reporting Safety Defects to
General Motors
In addition to notifying NHTSA (or Transport Canada) in
a situation like this, we certainly hope you will notify
General Motors. Please call the Chevrolet Customer
Assistance Center at 1-800-222-1020, or write:
Chevrolet Motor Division
Chevrolet Customer Assistance Center
P.O. Box 33170
Detroit, MI 48232-5170
In Canada, please call us at 1-800-263-3777 (English)
or 1-800-263-7854 (French). Or, write:
General Motors of Canada Limited
Customer Communication Centre, 163-005
1908 Colonel Sam Drive
Oshawa, Ontario L1H 8P7
Service Publications Ordering
Information
Service Manuals
Service Manuals have the diagnosis and repair
information on engines, transmission, axle suspension,
brakes, electrical, steering, body, etc.
7-11

A
Accessory Power Outlets.................................3-16
Adding Equipment to Your
Airbag-Equipped Vehicle...............................1-70
Additives, Fuel................................................. 5-6
Add-On Electrical Equipment............................5-92
Air Cleaner/Filter, Engine.................................5-17
Air Conditioning..............................................3-18
Airbag
Off Light.....................................................3-26
Readiness Light..........................................3-25
Airbag Sensing and Diagnostic Module (SDM)........ 7-9
Airbag System................................................1-59
Adding Equipment to Your
Airbag-Equipped Vehicle............................1-70
Airbag Off Switch........................................1-66
How Does an Airbag Restrain?......................1-65
Servicing Your Airbag-Equipped Vehicle..........1-69
What Makes an Airbag Inate?......................1-64
What Will You See After an Airbag Inates?........1-65
When Should an Airbag Inate?....................1-63
Where Are the Airbags?...............................1-62
All-Wheel Drive...............................................5-43
All-Wheel Drive (AWD) System.........................2-24
AM-FM Radio.................................................3-40
Antenna, Fixed Mast.......................................3-74
Anti-Lock Brake System (ABS)........................... 4-6
Anti-Lock Brake, System Warning Light..............3-30
Appearance Care............................................5-82Aluminum Wheels........................................5-88
Care of Safety Belts....................................5-85
Chemical Paint Spotting...............................5-89
Cleaning Exterior Lamps/Lenses....................5-86
Fabric/Carpet..............................................5-83
Finish Care.................................................5-86
Finish Damage............................................5-89
Glass Surfaces............................................5-85
Instrument Panel.........................................5-85
Interior Plastic Components...........................5-85
Sheet Metal Damage...................................5-89
Tires..........................................................5-88
Underbody Maintenance...............................5-89
Vehicle Care/Appearance Materials................5-90
Vinyl..........................................................5-85
Washing Your Vehicle...................................5-86
Weatherstrips..............................................5-86
Windshield and Wiper Blades........................5-87
Ashtrays........................................................3-17
Audio System(s).............................................3-39
AM-FM Radio.............................................3-40
Care of Your Cassette Tape Player................3-72
Care of Your CD Player...............................3-74
Care of Your CDs........................................3-74
Chime Level Adjustment...............................3-74
Fixed Mast Antenna.....................................3-74
Radio with Cassette and CD.........................3-47
Radio with CD............................................3-43
Radio with Six-Disc CD................................3-60
1

Audio System(s) (cont.)
Setting the Time for Radios with
Radio Data Systems (RDS).......................3-40
Setting the Time for Radios without
Radio Data Systems (RDS).......................3-40
Theft-Deterrent Feature................................3-71
Understanding Radio Reception.....................3-72
Automatic Transmission
Fluid..........................................................5-19
Operation...................................................2-22
B
Battery..........................................................5-37
Run-Down Protection...................................3-16
Before Leaving on a Long Trip.........................4-21
Brake
Anti-Lock Brake System (ABS)........................ 4-6
Emergencies................................................ 4-7
Parking......................................................2-24
System Warning Light..................................3-29
Brakes..........................................................5-34
Braking........................................................... 4-5
Braking in Emergencies..................................... 4-7
Break-In, New Vehicle.....................................2-18
Bulb Replacement...........................................5-46
Center High-Mounted Stoplamp (CHMSL)........5-49
Front Turn Signal, Sidemarker and
Parking Lamps.........................................5-48Bulb Replacement (cont.)
Halogen Bulbs............................................5-47
Headlamps.................................................5-47
Replacement Bulbs......................................5-50
Taillamps....................................................5-49
Buying New Tires...........................................5-62
C
California Fuel.................................................. 5-6
Canadian Owners................................................ ii
Capacities and Specications............................5-97
Carbon Monoxide...........................2-27, 4-24, 4-34
Care of
Safety Belts................................................5-85
Your Cassette Tape Player............................3-72
Your CD Player...........................................3-74
Your CDs ...................................................3-74
Cargo Door Relocking....................................... 2-8
Center High-Mounted Stoplamp (CHMSL)...........5-49
Center Passenger Position, Safety Belts.......1-23, 1-24
Chains, Tire...................................................5-66
Charging System Light....................................3-28
Check
Engine Light...............................................3-32
Gages Warning Light...................................3-38
Checking Things Under the Hood......................5-10
Chemical Paint Spotting...................................5-89
2

Child Restraints
Child Restraint Systems...............................1-39
Infants and Young Children...........................1-33
Lower Anchorages and Top Tethers for
Children (LATCH System)..........................1-49
Older Children.............................................1-31
Securing a Child Restraint Designed for
the LATCH System...................................1-51
Securing a Child Restraint in a
Center Seat Position.........................1-53, 1-54
Securing a Child Restraint in a
Rear Outside Seat Position........................1-51
Securing a Child Restraint in the
Right Front Seat Position..........................1-55
Top Strap...................................................1-46
Top Strap Anchor Location............................1-47
Where to Put the Restraint...........................1-42
Chime Level Adjustment..................................3-74
Cigarette Lighter.............................................3-17
Cleaning
Aluminum Wheels........................................5-88
Exterior Lamps/Lenses.................................5-86
Fabric/Carpet..............................................5-83
Finish Care.................................................5-86
Glass Surfaces............................................5-85
Instrument Panel.........................................5-85
Interior Plastic Components...........................5-85
Tires..........................................................5-88
Underbody Maintenance...............................5-89
Vinyl..........................................................5-85Cleaning (cont.)
Washing Your Vehicle...................................5-86
Weatherstrips..............................................5-86
Windshield and Wiper Blades........................5-87
Climate Control System...................................3-18
Outlet Adjustment........................................3-20
Rear Air Conditioning and Heating System......3-21
Rear Heating System...................................3-20
Comfort Guides, Rear Safety Belt.....................1-28
Control of a Vehicle.......................................... 4-5
Coolant
Engine Temperature Gage............................3-31
Heater, Engine............................................2-21
Cooling System..............................................5-26
Cruise Control Lever.......................................3-10
Cruise Control Light........................................3-36
Customer Assistance Information
Courtesy Transportation.................................. 7-7
Customer Assistance for Text
Telephone (TTY) Users............................... 7-4
Customer Assistance Offices........................... 7-4
Customer Satisfaction Procedure..................... 7-2
GM Mobility Reimbursement Program............... 7-5
Reporting Safety Defects to General Motors.......7-11
Reporting Safety Defects to the
Canadian Government..............................7-11
Reporting Safety Defects to the
United States Government.........................7-10
Roadside Assistance Program......................... 7-6
Service Publications Ordering Information........7-11
3

D
Daytime Running Lamps..................................3-14
Daytime Running Lamps Indicator Light.............3-37
Defensive Driving............................................. 4-2
Doing Your Own Service Work........................... 5-4
Dome Lamp Override......................................3-15
Dome Lamps.................................................3-15
Door
60/40 Swing-Out Side Door...........................2-12
Cargo Door Relocking.................................... 2-8
Locks.......................................................... 2-7
Power Door Locks......................................... 2-8
Rear Door Security Locks............................... 2-8
Rear Doors.................................................2-13
Sliding Side Door........................................2-10
Driver
Position, Safety Belt.....................................1-15
Driving
At Night.....................................................4-15
City...........................................................4-19
Defensive..................................................... 4-2
Drunken....................................................... 4-2
Freeway.....................................................4-20
Hill and Mountain Roads..............................4-22
In Rain and on Wet Roads...........................4-16
Rocking Your Vehicle to Get it Out.................4-28
Winter........................................................4-24
Dual Tire Operation.........................................5-59
E
Electrical System
Add-On Equipment......................................5-92
Engine Compartment Fuse Block...................5-94
Floor Console Fuse Block.............................5-93
Fuses and Circuit Breakers...........................5-92
Headlamp Wiring.........................................5-92
Windshield Wiper Fuses...............................5-92
Engine
Air Cleaner/Filter.........................................5-17
Battery.......................................................5-37
Change Engine Oil Light...............................3-35
Check and Service Engine Soon Light............3-32
Coolant......................................................5-22
Coolant Heater............................................2-21
Coolant Temperature Gage...........................3-31
Engine Compartment Overview......................5-12
Exhaust.....................................................2-27
Fan Noise..................................................5-32
Fuel Regulator............................................2-20
Oil .............................................................5-13
Overheating................................................5-24
Reduced Power Light...................................3-37
Speed Limiter.............................................3-24
Starting......................................................2-20
Entry Lighting.................................................3-16
Event Data Recorders (EDR)............................. 7-9
Exit Lighting...................................................3-16
4

Extender, Safety Belt.......................................1-30
Exterior Lamps...............................................3-13
F
Filter
Engine Air Cleaner......................................5-17
Finish Damage...............................................5-89
Fixed Mast Antenna........................................3-74
Flash-to-Pass................................................... 3-9
Flat Tire........................................................5-67
Flat Tire, Changing.........................................5-68
Flat Tire, Storing.............................................5-80
Fluid
Automatic Transmission................................5-19
Power Steering...........................................5-32
Windshield Washer......................................5-33
Front Axle......................................................5-44
Fuel............................................................... 5-5
Additives...................................................... 5-6
California Fuel.............................................. 5-6
Filling a Portable Fuel Container....................5-10
Filling Your Tank........................................... 5-8
Fuels in Foreign Countries.............................. 5-7
Gage.........................................................3-38
Gasoline Octane........................................... 5-5
Gasoline Specications.................................. 5-5
Regulator...................................................2-20Fuses
Engine Compartment Fuse Block...................5-94
Floor Console Fuse Block.............................5-93
Fuses and Circuit Breakers...........................5-92
Windshield Wiper.........................................5-92
G
Gage
Check Gages Warning Light..........................3-38
Engine Coolant Temperature.........................3-31
Fuel..........................................................3-38
Oil Pressure...............................................3-34
Speedometer..............................................3-24
Voltmeter Gage...........................................3-28
Gasoline
Octane........................................................ 5-5
Specications............................................... 5-5
GM Mobility Reimbursement Program.................. 7-5
H
Hazard Warning Flashers................................... 3-6
Headlamp Wiring............................................5-92
Headlamps....................................................5-47
Bulb Replacement.......................................5-46
Daytime Running Lamps...............................3-14
Flash-to-Pass............................................... 3-9
5

Light (cont.)
Brake System Warning.................................3-29
Change Engine Oil......................................3-35
Charging System.........................................3-28
Check Gages Warning.................................3-38
Cruise Control.............................................3-36
Daytime Running Lamps Indicator..................3-37
Highbeam On.............................................3-37
Malfunction Indicator....................................3-32
Reduced Engine Power................................3-37
Safety Belt Reminder...................................3-25
Security.....................................................3-36
Stabilitrak
®Indicator.....................................3-31
Stabilitrak®Not Ready..................................3-30
Tow/Haul Mode...........................................3-38
Lighting
Entry.........................................................3-16
Exit...........................................................3-16
Locking Rear Axle............................................ 4-7
Lockout Protection............................................ 2-9
Locks
Cargo Door Relocking.................................... 2-8
Door........................................................... 2-7
Lockout Protection......................................... 2-9
Power Door.................................................. 2-8
Rear Door Security Locks............................... 2-8
Loss of Control...............................................4-14
M
Maintenance Schedule
Additional Required Services........................... 6-6
At Each Fuel Fill.........................................6-10
At Least Once a Month................................6-10
At Least Once a Year..................................6-11
At the First 100, 1,000 and 6,000 Miles
(160, 1 600 and 10 000km).......................6-10
Introduction.................................................. 6-2
Maintenance Footnotes.................................. 6-8
Maintenance Record....................................6-16
Maintenance Requirements............................. 6-2
Normal Maintenance Replacement Parts.........6-15
Owner Checks and Services.........................6-10
Recommended Fluids and Lubricants.............6-13
Scheduled Maintenance................................. 6-4
Using Your................................................... 6-3
Your Vehicle and the Environment................... 6-2
Malfunction Indicator Light................................3-32
Manual Seats................................................... 1-3
Manual Windows............................................2-15
Mirrors
Manual Rearview Mirror................................2-29
Outside Camper-Type Mirrors........................2-29
Outside Convex Mirror.................................2-30
Outside Heated Mirrors................................2-31
7

Mirrors (cont.)
Outside Manual Mirror..................................2-29
Outside Power Mirrors..................................2-30
MyGMLink.com................................................ 7-3
N
New Vehicle Break-In......................................2-18
Noise Control System, Tampering......................5-45
Normal Maintenance Replacement Parts............6-15
O
Odometer......................................................3-24
Odometer, Trip...............................................3-24
Off-Road Recovery..........................................4-12
Oil
Change Engine Oil Light...............................3-35
Engine.......................................................5-13
Pressure Gage............................................3-34
Older Children, Restraints................................1-31
Online Owner Center........................................ 7-3
OnStar
®System.............................................2-31
Other Warning Devices...................................... 3-6
Outlet Adjustment............................................3-20Outside
Camper-Type Mirrors....................................2-29
Convex Mirror.............................................2-30
Heated Mirrors............................................2-31
Manual Mirror.............................................2-29
Power Mirrors.............................................2-30
Owner Checks and Services.............................6-10
Owners, Canadian............................................... ii
P
Park (P)
Shifting Into................................................2-25
Shifting Out of............................................2-26
Parking
Brake........................................................2-24
Over Things That Burn.................................2-27
Passing.........................................................4-12
Passlock
®......................................................2-18
Power
Accessory Outlets........................................3-16
Door Locks.................................................. 2-8
Reduced Engine Light..................................3-37
Retained Accessory (RAP)............................2-19
Seat............................................................ 1-4
Steering Fluid.............................................5-32
Windows....................................................2-16
Pretensioners, Safety Belt................................1-30
8

Q
Questions and Answers About Safety Belts.........1-14
R
Radiator Pressure Cap....................................5-24
Radios..........................................................3-39
AM-FM Radio.............................................3-40
Care of Your Cassette Tape Player................3-72
Care of Your CD Player...............................3-74
Care of Your CDs........................................3-74
Radio with Cassette and CD.........................3-47
Radio with CD............................................3-43
Radio with Six-Disc CD................................3-60
Setting the Time for Radios with
Radio Data Systems (RDS).......................3-40
Setting the Time for Radios without
Radio Data Systems (RDS).......................3-40
Theft-Deterrent............................................3-71
Understanding Reception..............................3-72
Reading Lamps..............................................3-16
Rear Air Conditioning and Heating System.........3-21
Rear Axle......................................................5-44
Locking........................................................ 4-7
Rear Door Security Locks.................................. 2-8Rear Doors....................................................2-13
Rear Heating System......................................3-20
Rear Safety Belt Comfort Guides......................1-28
Rear Seat Operation......................................... 1-6
Rear Seat Passengers, Safety Belts..................1-25
Rearview Mirrors.............................................2-29
Reclining Seatbacks.......................................... 1-4
Recommended Fluids and Lubricants.................6-13
Recreational Vehicle Towing.............................4-34
Reduced Engine Power Light............................3-37
Remote Keyless Entry System............................ 2-3
Remote Keyless Entry System, Operation............ 2-4
Removing the Flat Tire and Installing the
Spare Tire..................................................5-72
Removing the Spare Tire and Tools...................5-69
Replacement Bulbs.........................................5-50
Reporting Safety Defects
Canadian Government..................................7-11
General Motors...........................................7-11
United States Government............................7-10
Restraint System Check
Checking Your Restraint Systems...................1-70
Replacing Restraint System Parts
After a Crash..........................................1-71
Restraint Systems
Checking....................................................1-70
Replacing Parts...........................................1-71
9