2003 CHEVROLET EXPRESS CARGO VAN engine

Cleaning the Windshield and Wiper Blades.........5-85
Cleaning Tires................................................5-86
Cleaning Vinyl................................................5-82
Cleaning........................................................5-80
Inside of Your Vehicle..................................5-80
Outside of Your Vehicle................................5-83
Underbody Maintenance...............................5-87
Weatherstrips..............................................5-83
Climate Control System...................................3-19
Rear Air Conditioning and Heating System......3-21
Rear Heating System...................................3-20
Compact Disc Messages.................3-48, 3-59, 3-70
Control of a Vehicle.......................................... 4-5
Coolant.........................................................3-32
Engine Temperature Gage............................3-32
Heater, Engine............................................2-23
Low Warning Light.......................................3-33
Cooling System..............................................5-26
Cruise Control Light........................................3-38
Cruise Control................................................3-10
Current and Past Model Order Forms................7-10
Customer Assistance Information........................ 7-7
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 Program for Persons with
Disabilities................................................ 7-5
Reporting Safety Defects to General Motors...... 7-9Customer Assistance Information (cont.)
Reporting Safety Defects to the Canadian
Government.............................................. 7-9
Reporting Safety Defects to the United States
Government.............................................. 7-8
Roadside Assistance Program......................... 7-5
Service Publications Ordering Information......... 7-9
D
Daytime Running Lamps Indicator Light.............3-38
Daytime Running Lamps..................................3-15
Defensive Driving............................................. 4-2
Defogging and Defrosting.................................3-22
Doing Your Own Service Work........................... 5-3
Dome Lamp Override......................................3-16
Dome Lamps.................................................3-17
Door.............................................................2-13
60/40 Swing-Out Side Door...........................2-13
Cargo Door Relocking.................................... 2-8
Locks.......................................................... 2-7
Power Door Locks......................................... 2-8
Rear Door Security Locks............................... 2-8
Rear Doors.................................................2-14
Sliding Side Door........................................2-11
Driver............................................................1-16
Position, Safety Belt.....................................1-16
Driving On Grades..........................................4-42
Driving on Snow or Ice....................................4-24
4

Driving Through Deep Standing Water...............4-17
Driving Through Flowing Water.........................4-17
Driving with a Trailer.......................................4-41
Driving..........................................................4-13
At Night.....................................................4-13
City...........................................................4-18
Defensive..................................................... 4-2
Drunken....................................................... 4-2
Freeway.....................................................4-19
Hill and Mountain Roads..............................4-22
In Rain and on Wet Roads...........................4-15
Winter........................................................4-24
Dual Stage Air Bags........................................1-67
Dual Tire Operation.........................................5-57
E
Electrical System............................................5-91
Add-On Equipment......................................5-91
Fuses and Circuit Breakers...........................5-92
Headlamp Wiring.........................................5-91
Windshield Wiper Fuses...............................5-91
Electronic Road-Speed Governor.......................3-26
Emissions Inspection and Maintenance
Programs...................................................3-35Engine Compartment Fuse Block......................5-94
Engine Coolant Level Check.............................6-11
Engine Oil Additives........................................5-15
Engine Oil and Chassis Lubrication Scheduled
Maintenance................................................. 6-5
Engine Oil Level Check...................................6-11
Engine..........................................................5-17
Air Cleaner/Filter.........................................5-17
Battery.......................................................5-40
Change Engine Oil Light...............................3-37
Check and Service Engine Soon Light............3-33
Compartment Overview................................5-12
Coolant Heater............................................2-23
Coolant Temperature Gage...........................3-32
Coolant......................................................5-21
Cooling System Inspection............................6-16
Exhaust.....................................................2-30
Fan Noise..................................................5-34
Oil .............................................................5-13
Overheating................................................5-24
Starting......................................................2-22
Entry Lighting.................................................3-17
Exit Lighting...................................................3-17
Extender, Safety Belt.......................................1-33
Exterior Lamps...............................................3-13
5

F
Filter.............................................................5-17
Engine Air Cleaner......................................5-17
Finding a PTY Station.............................3-52, 3-63
Finding a Station....................3-42, 3-44, 3-49, 3-60
Finish Care....................................................5-84
Finish Damage...............................................5-86
Fixed Mast Antenna........................................3-75
Flash-To-Pass Feature....................................... 3-9
Flat Tire, Changing.........................................5-65
Flat Tire........................................................5-64
Floor Console Fuse Block................................5-92
Fluid.............................................................5-19
Automatic Transmission................................5-19
Power Steering...........................................5-34
Windshield Washer......................................5-35
FM ...............................................................3-73
Following Distance..........................................4-41
Footnotes........................................................ 6-5
Front Axle......................................................5-48
Fuel Regulator................................................2-22
Fuel............................................................... 5-4
Additives...................................................... 5-6
California Fuel.............................................. 5-5
Filling a Portable Fuel Container..................... 5-9Fuel (cont.)
Filling Your Tank........................................... 5-7
Fuels in Foreign Countries.............................. 5-6
Gage.........................................................3-39
Gasoline Octane........................................... 5-4
Gasoline Speci®cations.................................. 5-5
System Inspection.......................................6-16
Fuses...........................................................5-92
Fuses and Circuit Breakers...........................5-92
Windshield Wiper.........................................5-91
G
Gage............................................................3-38
Check Gages Warning Light..........................3-38
Engine Coolant Temperature.........................3-32
Fuel..........................................................3-39
Oil Pressure...............................................3-36
Speedometer..............................................3-25
Voltmeter Gage...........................................3-30
Gasoline......................................................... 5-4
Octane........................................................ 5-4
Speci®cations............................................... 5-5
GM Mobility Program for Persons with
Disabilities.................................................... 7-5
6

H
Hazard Warning Flashers................................... 3-5
Headlamp High/Low Beam Changer.................... 3-8
Headlamp Wiring............................................5-91
Headlamps....................................................5-50
Bulb Replacement.......................................5-50
Front Turn Signal, Sidemarker and Parking
Lamps....................................................5-52
Halogen Bulbs............................................5-50
Highway Hypnosis...........................................4-21
Hill and Mountain Roads..................................4-22
Hitches..........................................................4-39
Hood.............................................................. 5-9
Checking Things Under.................................. 5-9
Release.....................................................5-10
Horn............................................................... 3-6
How to Add Coolant to the Coolant
Recovery Tank............................................5-28
How to Add Coolant to the Radiator..................5-31
How to Add Fluid............................................5-21
How to Check Lubricant...................................5-47
How to Check Power Steering Fluid..................5-35
How to Check........................................5-19, 5-57
How to Inspect the Engine Air Cleaner/Filter.......5-18How to Reset the CHANGE ENGINE
OIL Light....................................................5-16
How to Use This Manual...................................... ii
How to Wear Safety Belts Properly...................1-15
Hydroplaning..................................................4-16
I
If No Steam Is Coming From Your Engine..........5-25
If Steam Is Coming From Your Engine...............5-24
If the Light Is Flashing.....................................3-34
If the Light Is On Steady.................................3-35
If You Are Stuck in Sand, Mud, Ice or Snow.......4-28
If You Do Decide To Pull A Trailer.....................4-32
If You're Caught in a Blizzard...........................4-26
Ignition Positions.............................................2-20
Ignition Transmission Lock Check......................6-14
Infants and Young Children, Restraints...............1-36
In¯ation -- Tire Pressure..................................5-56
Inside Day/Night Rearview Mirror......................2-31
Inspection......................................................6-17
Brake System.............................................6-17
Engine Cooling System................................6-16
Exhaust System..........................................6-16
Fuel System...............................................6-16
Part C - Periodic Maintenance.......................6-16
7

Inspection (cont.)
Steering and Suspension..............................6-16
Throttle System...........................................6-17
Transfer Case and Front Axle
(All-Wheel Drive)......................................6-17
Instrument Panel Brightness Control..................3-16
Instrument Panel.............................................3-24
Cluster.......................................................3-24
Overview..................................................... 3-4
Interior Lamps................................................3-16
J
Jump Starting.................................................5-41
K
Key Lock Cylinders Service..............................6-13
Keyless Entry System....................................... 2-3
Keys............................................................... 2-2
L
Lamps On Reminder.......................................3-14
Lamps...........................................................3-13
Exterior......................................................3-13
Interior.......................................................3-16Lap Belt........................................................1-26
Lap-Shoulder Belt...........................................1-16
LATCH System...............................................1-51
Child Restraints...........................................1-51
Securing a Child Restraint Designed for the
LATCH System........................................1-53
Leaving Your Vehicle With the Engine
Running.....................................................2-28
Leaving Your Vehicle.......................................2-10
Light.............................................................3-28
Air Bag Off .................................................3-28
Air Bag Readiness.......................................3-27
Anti-Lock Brake System Warning...................3-32
Brake System Warning.................................3-31
Change Engine Oil......................................3-37
Charging System.........................................3-29
Check Gages Warning.................................3-38
Cruise Control.............................................3-38
Daytime Running Lamps Indicator..................3-38
Low Coolant Warning...................................3-33
Malfunction Indicator....................................3-33
Safety Belt Reminder...................................3-26
Security.....................................................3-37
Tow/Haul Mode...........................................3-38
Loading Your Vehicle.......................................4-29
Locking Rear Axle............................................ 4-8
Lockout Protection..........................................2-10
8

Locks............................................................. 2-8
Cargo Door Relocking.................................... 2-8
Door........................................................... 2-7
Leaving Your Vehicle....................................2-10
Lockout Protection.......................................2-10
Power Door.................................................. 2-8
Rear Door Security Locks............................... 2-8
Loss of Control...............................................4-12
Low Coolant Warning Light..............................3-33
M
Maintenance, Normal Replacement Parts..........5-100
Maintenance Schedule.....................................6-11
At Each Fuel Fill.........................................6-11
At Least Once a Month................................6-11
At Least Once a Year..................................6-13
At Least Twice a Year..................................6-12
At the First 100, 1,000 and 6,000 Miles
(160, 1 600 and 10 000km).......................6-11
Brake System Inspection..............................6-17
Engine Cooling System Inspection.................6-16
Exhaust System Inspection...........................6-16
Fuel System Inspection................................6-16
How This Section is Organized....................... 6-3
Introduction.................................................. 6-2
Maintenance Requirements............................. 6-2
Part A - Scheduled Maintenance Services......... 6-4Maintenance Schedule (cont.)
Part B - Owner Checks and Services.............6-11
Part C - Periodic MaintenanceInspections......6-16
Part D - Recommended Fluids and
Lubricants...............................................6-18
Part E - Maintenance Record........................6-20
Rear Axle Service........................................6-17
Scheduled Maintenance................................. 6-5
Steering and Suspension Inspection...............6-16
Throttle System Inspection............................6-17
Transfer Case and Front Axle
(All-Wheel Drive) Inspection.......................6-17
Using Your................................................... 6-4
Your Vehicle and the Environment................... 6-2
Maintenance When Trailer Towing.....................4-43
Making Turns.................................................4-42
Malfunction Indicator Light................................3-33
Manual Seats................................................... 1-3
Manual Windows............................................2-16
Matching Transmitter(s) to Your Vehicle............... 2-5
Mexico, Central America and Caribbean Islands/
Countries (Except Puerto Rico and
U.S. Virgin Islands) ± Customer Assistance....... 7-4
Mirrors..........................................................2-31
Manual Rearview Mirror................................2-31
Outside Camper-Type Mirrors........................2-32
Outside Convex Mirror.................................2-34
Outside Heated Mirrors................................2-34
9

Mirrors (cont.)
Outside Manual Mirror..................................2-31
Outside Power Mirrors..................................2-33
Outside Remote Control Mirror......................2-32
Model Reference................................................ vi
MyGMLink.com................................................ 7-3
N
New Vehicle Break-In......................................2-20
Noise Control System, Tampering......................5-49
Normal Maintenance Replacement Parts...........5-100
O
Off-Road Recovery..........................................4-10
Oil ................................................................3-37
Change Engine Oil Light...............................3-37
Engine.......................................................5-13
Pressure Gage............................................3-36
Older Children, Restraints................................1-34
Online Owner Center........................................ 7-3
OnStar
žPersonal Calling.................................2-36
OnStaržServices............................................2-35
OnStaržSystem.............................................2-35
OnStaržVirtual Advisor....................................2-36
Other Warning Devices...................................... 3-6Outside.........................................................2-32
Camper-Type Mirrors....................................2-32
Convex Mirror.............................................2-34
Heated Mirrors............................................2-34
Manual Mirror.............................................2-31
Power Mirrors.............................................2-33
Remote Control Mirror..................................2-32
Overseas ± Customer Assistance........................ 7-4
Owners, Canadian............................................... ii
Owner's Information........................................7-10
P
Park (P)........................................................2-26
Shifting Into................................................2-26
Shifting Out of............................................2-29
Parking Brake and Automatic Transmission
Park (P) Mechanism Check...........................6-15
Parking on Hills..............................................4-43
Parking.........................................................2-26
Brake........................................................2-26
Over Things That Burn.................................2-29
Part A - Scheduled Maintenance Services............ 6-4
Part B - Owner Checks and Services................6-11
Part C - Periodic MaintenanceInspections..........6-16
Part D - Recommended Fluids and Lubricants....6-18
Part E - Maintenance Record...........................6-20
10

Rear Door Security Locks.................................. 2-8
Rear Doors....................................................2-14
Rear Heating System......................................3-20
Rear Safety Belt Comfort Guides......................1-31
Rear Seat Audio (RSA)....................................3-71
Rear Seat Operation......................................... 1-6
Rear Seat Outside Passenger Positions.............1-28
Rear Seat Passengers, Safety Belts..................1-28
Rear Seat Radio Controls................................3-71
Rear Window Defogger....................................3-23
Rearview Mirrors.............................................2-31
Reclining Seatbacks.......................................... 1-4
Recreational Vehicle Towing.............................4-29
Remote Keyless Entry System, Operation............ 2-4
Remote Keyless Entry System............................ 2-3
Removing the Flat Tire and Installing the
Spare Tire..................................................5-72
Removing the Rear Seat................................... 1-6
Removing the Spare Tire and Tools...................5-66
Removing the Wheel Covers............................5-72
Replacement Bulbs.........................................5-54
Replacing Brake System Parts..........................5-40
Replacing Restraint System Parts After
a Crash.....................................................1-75
Replacing the Rear Seats.................................. 1-8
Reporting Safety Defects................................... 7-9
Canadian Government................................... 7-9
General Motors............................................. 7-9
United States Government.............................. 7-8Restraint System Check...................................6-12
Checking Your Restraint Systems...................1-74
Replacing Restraint System Parts After
a Crash..................................................1-75
Restraint Systems...........................................1-74
Checking....................................................1-74
Replacing Parts...........................................1-75
Resynchronization............................................. 2-5
Retained Accessory Power (RAP)......................2-21
Right Front Passenger Position, Safety Belts......1-25
Roadside......................................................... 7-5
Assistance Program....................................... 7-5
Rocking Your Vehicle To Get It Out...................4-28
Running Your Engine While You Are Parked.......2-30
S
Safety Belt.....................................................3-26
Reminder Light............................................3-26
Safety Belts...................................................5-83
Care of......................................................5-83
Center Passenger Position....................1-25, 1-26
Driver Position............................................1-16
How to Wear Safety Belts Properly................1-15
Questions and Answers About Safety Belts.....1-14
Rear Safety Belt Comfort Guides for Children
and Small Adults......................................1-31
Rear Seat Passengers.................................1-28
Right Front Passenger Position......................1-25
12