2003 CHEVROLET EXPRESS CARGO VAN steering wheel

Maintenance Schedule......................................6-2
Introduction...................................................6-2
Your Vehicle and the Environment....................6-2
Maintenance Requirements..............................6-2
How This Section is Organized.........................6-3
Part A: Scheduled Maintenance Services...........6-4
Using Your Maintenance Schedule....................6-4
Scheduled Maintenance...................................6-5
Part B: Owner Checks and Services................6-11
At the First 100, 1,000 and 6,000 Miles
(160, 1 600 and 10 000km)........................6-11
At Each Fuel Fill..........................................6-11
At Least Once a Month.................................6-11
At Least Twice a Year...................................6-12At Least Once a Year...................................6-13
Part C: Periodic MaintenanceInspections.........6-16
Steering and Suspension Inspection................6-16
Exhaust System Inspection............................6-16
Fuel System Inspection..................................6-16
Engine Cooling System Inspection...................6-16
Throttle System Inspection.............................6-17
Rear Axle Service.........................................6-17
Transfer Case and Front Axle
(All-Wheel Drive) Inspection........................6-17
Brake System Inspection................................6-17
Part D: Recommended Fluids and
Lubricants................................................6-18
Part E: Maintenance Record...........................6-20
Section 6 Maintenance Schedule
6-1

Part D: Recommended Fluids and
Lubricants
Fluids and lubricants identi®ed below by name, part
number or speci®cation may be obtained from your
dealer.
Usage Fluid/Lubricant
Engine OilEngine oil with the American
Petroleum Institute Certi®ed for
Gasoline Engines starburst symbol
of the proper viscosity. To determine
the preferred viscosity for your
vehicle's engine, see
Engine Oil on
page 5-13.
Engine Coolant50/50 mixture of clean, drinkable
water and use only
DEX-COOL
žCoolant. SeeEngine
Coolant on page 5-21.
Hydraulic Brake
SystemDelco Supreme 11 Brake Fluid or
equivalent DOT-3 brake ¯uid.
Windshield
Washer SolventGM Optikleen
žWasher Solvent or
equivalent.
Usage Fluid/Lubricant
Parking Brake
Cable GuidesChassis Lubricant
(GM Part No. U.S. 12377985, in
Canada 88901242, or equivalent) or
lubricant meeting requirements of
NLGI #2, Category LB or GC-LB.
Power Steering
SystemGM Power Steering Fluid
(GM Part No. U.S. 1052884, in
Canada 993294, or equivalent).
Automatic
TransmissionDEXRON
ž-III Automatic
Transmission Fluid.
Key Lock
CylindersMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241, in
Canada 10953474, or equivalent).
Chassis
LubricationChassis Lubricant
(GM Part No. U.S. 12377985, in
Canada 88901242, or equivalent) or
lubricant meeting requirements of
NLGI #2, Category LB or GC-LB.
Front Wheel
BearingsWheel bearing lubricant meeting
requirements of NLGI #2,
Category GC or GC-LB
(GM Part No. U.S. 1051344, in
Canada 993037, or equivalent).
6-18

Service............................................................5-3
Doing Your Own Service Work.........................5-3
Adding Equipment to the Outside of Your
Vehicle......................................................5-4
Fuel................................................................5-4
Gasoline Octane............................................5-4
Gasoline Speci®cations....................................5-5
California Fuel...............................................5-5
Additives.......................................................5-6
Fuels in Foreign Countries...............................5-6
Filling Your Tank............................................5-7
Filling a Portable Fuel Container.......................5-9
Checking Things Under
the Hood......................................................5-9
Hood Release..............................................5-10
Engine Compartment Overview.......................5-12
Engine Oil...................................................5-13
Engine Air Cleaner/Filter................................5-17
Automatic Transmission Fluid.........................5-19
Engine Coolant.............................................5-21
Radiator Pressure Cap..................................5-24
Engine Overheating.......................................5-24Cooling System............................................5-26
Engine Fan Noise.........................................5-34
Power Steering Fluid.....................................5-34
Windshield Washer Fluid................................5-35
Brakes........................................................5-37
Battery........................................................5-40
Jump Starting...............................................5-41
All-Wheel Drive..............................................5-46
Rear Axle.......................................................5-47
Front Axle......................................................5-48
Noise Control System.....................................5-49
Tampering with Noise Control System
Prohibited.................................................5-49
Bulb Replacement..........................................5-50
Halogen Bulbs..............................................5-50
Headlamps..................................................5-50
Front Turn Signal, Sidemarker and Parking
Lamps.....................................................5-52
Taillamps.....................................................5-52
Replacement Bulbs.......................................5-54
Section 5 Service and Appearance Care
5-1

If a Tire Goes Flat
It's unusual for a tire to ªblowoutº while you're driving,
especially if you maintain your tires properly. If air goes
out of a tire, it's much more likely to leak out slowly.
But if you should ever have a ªblowout,º here are a few
tips about what to expect and what to do:
If a front tire fails, the ¯at tire will create a drag that
pulls the vehicle toward that side. Take your foot off the
accelerator pedal and grip the steering wheel ®rmly.
Steer to maintain lane position, and then gently brake to
a stop well out of the traffic lane.
A rear blowout, particularly on a curve, acts much like a
skid and may require the same correction you'd use
in a skid. In any rear blowout, remove your foot from the
accelerator pedal. Get the vehicle under control by
steering the way you want the vehicle to go. It may be
very bumpy and noisy, but you can still steer. Gently
brake to a stop, well off the road if possible.{CAUTION:
Lifting a vehicle and getting under it to do
maintenance or repairs is dangerous without
the appropriate safety equipment and training.
The jack provided with your vehicle is
designed only for changing a ¯at tire. If it is
used for anything else, you or others could be
badly injured or killed if the vehicle slips off
the jack. Use the jack provided with your
vehicle only for changing a ¯at tire.
If a tire goes ¯at, the next part shows how to use your
jacking equipment to change a ¯at tire safely.
5-64

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

Wheels..........................................................5-62
Alignment and Tire Balance..........................5-62
Replacement...............................................5-62
When to Add Engine Oil..................................5-14
When to Change Engine Oil.............................5-16
When to Check and Change............................5-19
When to Check Lubricant.................................5-47
When to Check Power Steering Fluid................5-35
When to Check..............................................5-57
When to Inspect the Engine Air Cleaner/Filter.....5-17
When You Are Ready to Leave After Parking
on a Hill.....................................................4-43
Where to Put the Restraint...............................1-45
Why Safety Belts Work....................................1-11
Windows.......................................................2-16
Manual......................................................2-16
Power........................................................2-17
Swing-Out Windows.....................................2-18Windshield Washer Fluid Level Check................6-11
Windshield Washer.........................................3-10
Fluid..........................................................5-35
Windshield Wiper............................................5-55
Blade Replacement......................................5-55
Fuses........................................................5-91
Windshield Wipers............................................ 3-9
Winter Driving................................................4-24
Wiper Blade Check.........................................6-12
Y
Your Vehicle and the Environment....................... 6-2
16