service indicator CHEVROLET EXPRESS CARGO VAN 2008 1.G User Guide

Fuel E85 (85% Ethanol)
The 8th digit of the Vehicle Identification Number (VIN)
shows the code letter or number that identifies your
vehicle’s engine. The VIN is at the top left of the
instrument panel. SeeVehicle Identification Number
(VIN) on page 5-108.
If your vehicle has the 5.3L V8 engine (VIN Code 4 only),
you can use either regular unleaded gasoline or ethanol
fuel containing up to 85% ethanol (E85); also seeFuel on
page 5-5. In all other engines, use only the unleaded
gasoline described underGasoline Octane on page 5-6.
Only vehicles that have the 5.3L V8 engine (VIN Code 4)
can use 85% ethanol fuel (E85). We encourage the use
of E85 in vehicles that are designed to use it. The ethanol
in E85 is a “renewable” fuel, meaning it is made from
renewable sources such as corn and other crops.
Many service stations will not have an 85% ethanol
fuel (E85) pump available. The U. S. Department
of Energy has an alternative fuels website
(www.eere.energy.gov/afdc/infrastructure/locator.html)
that can help you find E85 fuel. Those stations that
do have E85 should have a label indicating ethanol
content. Do not use the fuel if the ethanol content
is greater than 85%.At a minimum, E85 should meet ASTM Specification
D 5798. By definition, this means that fuel labeled E85
will have an ethanol content between 70% and 85%.
Filling the fuel tank with fuel mixtures that do not meet
ASTM specifications can affect driveability and could
cause the malfunction indicator lamp to come on.
To ensure quick starts in the wintertime, the E85 fuel
must be formulated properly for your climate according
to ASTM specification D 5798. If you have trouble
starting on E85, it could be because the E85 fuel is not
properly formulated for your climate. If this happens,
switching to gasoline or adding gasoline to the fuel tank
can improve starting. For good starting and heater
efficiency below 32°F (0°C), the fuel mix in the fuel tank
should contain no more than 70% ethanol. It is best
not to alternate repeatedly between gasoline and E85.
If you do switch fuels, it is recommended that you
add as much fuel as possible — do not add less than
three gallons (11 L) when refueling. You should drive
the vehicle immediately after refueling for at least
seven miles (11 km) to allow the vehicle to adapt to the
change in ethanol concentration.
5-8

Brake Wear
Your vehicle has disc brakes. Disc brake pads have
built-in wear indicators that make a high-pitched warning
sound when the brake pads are worn and new pads
are needed. The sound can come and go or be heard all
the time your vehicle is moving, except when you are
pushing on the brake pedal firmly.
{CAUTION:
The brake wear warning sound means that
soon the brakes will not work well. That could
lead to an accident. When you hear the brake
wear warning sound, have your vehicle
serviced.
Notice:Continuing to drive with worn-out brake
pads could result in costly brake repair.Some driving conditions or climates can cause a brake
squeal when the brakes are first applied or lightly
applied. This does not mean something is wrong with
the brakes.
Properly torqued wheel nuts are necessary to help
prevent brake pulsation. When tires are rotated, inspect
brake pads for wear and evenly tighten wheel nuts in
the proper sequence to torque specifications in
Capacities and Specifications on page 5-116.
Brake linings should always be replaced as complete
axle sets.Brake Pedal Travel
See your dealer/retailer if the brake pedal does not
return to normal height, or if there is a rapid increase in
pedal travel. This could be a sign that brake service
might be required.
Brake Adjustment
Every time you make a brake stop, the disc brakes
adjust for wear.
5-39

A
Accessories and Modifications............................ 5-3
Adding Equipment to Your Airbag-Equipped
Vehicle.......................................................1-74
Additives, Fuel................................................. 5-7
Add-On Electrical Equipment...........................5-109
Air Cleaner/Filter, Engine.................................5-20
Air Conditioning..............................................3-19
Airbag
Off Light.....................................................3-30
Passenger Status Indicator...........................3-31
Readiness Light..........................................3-29
Airbag System................................................1-57
What Will You See After an Airbag Inflates?....1-64
When Should an Airbag Inflate?....................1-62
Where Are the Airbags?...............................1-60
Airbag Systems
Adding Equipment to Your Airbag-Equipped
Vehicle...................................................1-74
Airbag Off Switch........................................1-66
How Does an Airbag Restrain?......................1-64
Passenger Sensing System...........................1-69
Servicing Your Airbag-Equipped Vehicle..........1-73
What Makes an Airbag Inflate?......................1-64
All-Wheel Drive...............................................5-46
All-Wheel-Drive (AWD) System........................... 4-7
Antenna, Fixed Mast.......................................3-88
Antilock Brake System (ABS)............................. 4-4Antilock Brake, System Warning Light................3-35
Appearance Care
Aluminum Wheels......................................5-104
Care of Safety Belts...................................5-102
Chemical Paint Spotting..............................5-106
Cleaning Exterior Lamps/Lenses..................5-103
Fabric/Carpet............................................5-101
Finish Care...............................................5-103
Finish Damage..........................................5-106
Instrument Panel, Vinyl, and Other Plastic
Surfaces...............................................5-101
Interior Cleaning..........................................5-99
Sheet Metal Damage..................................5-105
Tires........................................................5-105
Underbody Maintenance.............................5-106
Vehicle Care/Appearance Materials...............5-107
Washing Your Vehicle.................................5-102
Weatherstrips............................................5-102
Windshield and Wiper Blades......................5-104
Appointments, Scheduling Service....................... 7-9
Ashtray.........................................................3-19
Audio System.................................................3-66
Audio Steering Wheel Controls......................3-87
Fixed Mast Antenna.....................................3-88
Radio Reception..........................................3-88
Setting the Clock.........................................3-68
Theft-Deterrent Feature................................3-86
Audio System(s).............................................3-70
Automatic Door Lock......................................... 2-8
1

Light (cont.)
StabiliTrak®Indicator....................................3-36
Tire Pressure..............................................3-37
Tow/Haul Mode...........................................3-43
Lighting
Entry/Exit...................................................3-17
Lights
Exterior Lamps............................................3-14
Flash-to-Pass............................................... 3-9
High/Low Beam Changer................................ 3-9
On Reminder..............................................3-15
Loading Your Vehicle.......................................4-20
Locking Rear Axle............................................ 4-5
Lockout Protection............................................ 2-9
Locks
Automatic Door Lock..................................... 2-8
Automatic Door Unlock.................................. 2-8
Cargo Door Relocking.................................... 2-7
Delayed Locking........................................... 2-7
Door........................................................... 2-6
Lockout Protection......................................... 2-9
Power Door.................................................. 2-7
Programmable Automatic Door Locks............... 2-7
Rear Door Security Locks............................... 2-8
Loss of Control...............................................4-11M
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....................................6-17
Maintenance Replacement Parts....................6-15
Maintenance Requirements............................. 6-2
Owner Checks and Services........................... 6-9
Recommended Fluids and Lubricants.............6-13
Scheduled Maintenance................................. 6-4
Using.......................................................... 6-3
Your Vehicle and the Environment................... 6-2
Malfunction Indicator Light................................3-38
Manual Seats................................................... 1-2
Manual, Using.................................................... iii
Manual Windows............................................2-14
Message
DIC Warnings and Messages........................3-52
Mirrors
Manual Rearview Mirror................................2-33
Outside Camper-Type Mirrors........................2-33
Outside Convex Mirror.................................2-34
7

Mirrors (cont.)
Outside Heated Mirrors................................2-35
Outside Manual Mirror..................................2-33
Outside Power Mirrors..................................2-34
MP3 .............................................................3-81
MyGMLink.com................................................ 7-4
N
Navigation System, Privacy..............................7-18
New Vehicle Break-In......................................2-20
Noise Control System, Tampering......................5-48
O
Odometer......................................................3-27
Odometer, Trip...............................................3-27
Off-Road Recovery..........................................4-10
Oil
Engine.......................................................5-15
Pressure Gage............................................3-41
Pressure Light.............................................3-42
Oil, Engine Oil Life System..............................5-18
Older Children, Restraints................................1-29
Online Owner Center........................................ 7-4
OnStar, Privacy..............................................7-18
Other Warning Devices...................................... 3-6Outlet Adjustment............................................3-22
Outlets
Accessory Power.........................................3-18
Outside
Camper-Type Mirrors....................................2-33
Convex Mirror.............................................2-34
Heated Mirrors............................................2-35
Manual Mirror.............................................2-33
Power Mirrors.............................................2-34
Owner Checks and Services.............................. 6-9
Owners, Canadian............................................... ii
P
Paint, Damage..............................................5-106
Park Brake....................................................2-28
Park (P)
Shifting Into................................................2-29
Shifting Out of............................................2-30
Parking
Over Things That Burn.................................2-31
Passenger Airbag Status Indicator.....................3-31
Passenger Sensing System..............................1-69
Passing.........................................................4-10
PASS-Key
®III+..............................................2-18
PASS-Key®III+ Operation................................2-18
Perchlorate Materials Requirements, California...... 5-4
8

S
Safety Belt
Reminder Light............................................3-28
Safety Belts
Care of....................................................5-102
How to Wear Safety Belts Properly................1-15
Lap-Shoulder Belt........................................1-22
Safety Belt Extender....................................1-28
Safety Belt Use During Pregnancy.................1-28
Safety Belts Are for Everyone.......................1-10
Safety Warnings and Symbols.............................. iii
Scheduled Maintenance..................................... 6-4
Seats
Power Seat.................................................. 1-3
Rear Seat Operation...................................... 1-6
Reclining Seatbacks...................................... 1-3
Secondary Latch System.................................5-93
Securing a Child Restraint
Rear Seat Position......................................1-45
Right Front Seat Position......................1-48, 1-52
Security Light.................................................3-42
Service........................................................... 5-3
Accessories and Modifications......................... 5-3
Adding Equipment to the Outside of Your
Vehicle..................................................... 5-5
California Pershlorate Materials
Requirements............................................ 5-4
California Proposition 65 Warning.................... 5-4Service (cont.)
Doing Your Own Work................................... 5-4
Engine Soon Light.......................................3-38
Publications Ordering Information...................7-15
Service, Scheduling Appointments....................... 7-9
Servicing Your Airbag-Equipped Vehicle..............1-73
Sheet Metal Damage.....................................5-105
Shifting Into Park (P).......................................2-29
Shifting Out of Park (P)...................................2-30
Signals, Turn and Lane-Change.......................... 3-8
Sliding Side Door............................................. 2-9
Spare Tire.....................................................5-99
Installing....................................................5-86
Removing...................................................5-83
Storing.......................................................5-97
Specifications, Capacities...............................5-116
Speedometer..................................................3-27
StabiliTrak
®System.......................................... 4-5
StabiliTrak®Indicator Light................................3-36
Starting the Engine.........................................2-21
Steering.......................................................... 4-7
Steering Wheel Controls, Audio.........................3-87
Steering Wheel, Tilt Wheel................................. 3-6
Storage Areas................................................2-35
Stuck in Sand, Mud, Ice, or Snow.....................4-19
Sun Visors.....................................................2-17
Swing-Out Side Door, 60/40.............................2-10
Swing-Out Windows........................................2-16
10

U
Uniform Tire Quality Grading............................5-76
Using this Manual............................................... iii
V
Vehicle
Control........................................................ 4-3
Damage Warnings........................................... iv
Loading......................................................4-20
Symbols......................................................... iv
Vehicle Customization, DIC..............................3-60
Vehicle Data Recording and Privacy..................7-16
Vehicle Identification
Number (VIN)............................................5-108
Service Parts Identification Label..................5-108
Ventilation Adjustment......................................3-22
Visors...........................................................2-17
Voltmeter Gage..............................................3-34
W
Warning Lights, Gages and Indicators................3-25
Warnings
DIC Warnings and Messages........................3-52
Hazard Warning Flashers............................... 3-6Warnings (cont.)
Other Warning Devices.................................. 3-6
Safety and Symbols......................................... iii
Vehicle Damage.............................................. iv
Wheels
Alignment and Tire Balance..........................5-78
Different Size..............................................5-75
Replacement...............................................5-78
Where to Put the Restraint...............................1-38
Windows.......................................................2-13
Manual......................................................2-14
Power........................................................2-14
Swing-Out Windows.....................................2-16
Windows, Enhanced Technology Glass...............2-17
Windshield
Washer......................................................3-10
Washer Fluid..............................................5-36
Wiper Blade Replacement.............................5-54
Wiper Blades, Cleaning..............................5-104
Wiper Fuses.............................................5-109
Wipers......................................................... 3-9
Winter Driving................................................4-16Y
Your Vehicle and the Environment....................... 6-2
12