2010 CHEVROLET EXPRESS service indicator

Fuel E85 (85% Ethanol)
The 8th digit of the Vehicle Identification Number (VIN)
shows the code letter or number that identifies the
vehicle’s engine. The VIN is at the top left of the
instrument panel. SeeVehicle Identication Number
(VIN) on page 6-109.
If the vehicle has the 4.8L V8 engine (VIN Code A),
the 5.3L V8 engine (VIN Code 4), or the 6.0L V8 engine
(VIN Code G) and the N15 flexible fuel option, you can
use either unleaded gasoline or ethanol fuel containing
up to 85% ethanol (E85). SeeFuel on page 6-5. For all
other gasoline engines, use only the unleaded gasoline
described underGasoline Octane on page 6-6.
Only vehicles that have the 4.8L V8 engine (VIN Code A),
the 5.3L V8 engine (VIN Code 4) or the 6.0L V8 engine
(VIN Code G) and the N15 flexible fuel option 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 0°C (32°F), 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.
6-8

7. By this time, the coolant level inside the radiator
filler neck may be lower. If the level is lower, add
more of the proper DEX-COOL
®coolant mixture
through the filler neck until the level reaches
the base of the filler neck.
8. Then replace the pressure cap. At any time during
this procedure if coolant begins to flow out of the
filler neck, reinstall the pressure cap.
Notice:If the pressure cap is not tightly installed,
coolant loss and possible engine damage may
occur. Be sure the cap is properly and tightly
secured.
Engine Overheating
If your vehicle has the DURAMAX Diesel engine, see
the DURAMAX Diesel manual for more information.
The vehicle has an indicator to warn of engine
overheating.
You will find an engine coolant temperature gage on
your vehicle’s instrument panel. SeeEngine Coolant
Temperature Gage on page 4-29for more information.You may decide not to lift the hood when this warning
appears, but instead get service help right away.
SeeRoadside Assistance Program on page 8-8.
If you do decide to lift the hood, make sure the vehicle
is parked on a level surface.
Then check to see if the engine cooling fans are
running. If the engine is overheating, both fans should
be running. If they are not, do not continue to run
the engine and have the vehicle serviced.
See if the engine cooling fan speed increases when idle
speed is doubled by pushing the accelerator pedal down.
If it does not, your vehicle needs service. Turn off the
engine.
Notice:Engine damage from running the engine
without coolant is not covered by the warranty.
Notice:If the engine catches re because of being
driven with no coolant, your vehicle can be badly
damaged. The costly repairs would not be covered
by the vehicle warranty.
6-35

Brake Wear
This 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 the vehicle is moving, except when applying
the brake pedal firmly.
{WARNING:
The brake wear warning sound means that soon
the brakes will not work well. That could lead to an
accident. When the brake wear warning sound is
heard, have the 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
inCapacities and Specications on page 6-116.
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 brake stop, the brakes adjust for wear.
6-42

Locks (cont.)
Lockout Protection.......................................3-12
Power Door ................................................3-10
Programmable Automatic Door Locks.............3-10
Rear Door Security Locks.............................3-11
Loss of Control...............................................5-10
Lower Anchors and Tethers for Children.............2-42
M
Maintenance Schedule
Maintenance Record....................................7-16
Maintenance Replacement Parts....................7-14
Owner Checks and Services.........................7-10
Recommended Fluids and Lubricants.............7-12
Scheduled Maintenance................................. 7-3
Malfunction Indicator Lamp...............................4-30
Manual Seats................................................... 2-2
Manual Windows............................................3-16
Message
DIC Warnings and Messages........................4-44
Mirrors
Manual Rearview.........................................3-42
Outside Convex Mirror.................................3-43
Outside Heated Mirrors................................3-44Mirrors (cont.)
Outside Manual Mirrors................................3-42
Outside Power Mirrors..................................3-43
Outside Towing Mirrors.................................3-42
MP3 .............................................................4-72
N
Navigation System, Privacy..............................8-20
New Vehicle Break-In......................................3-22
Noise Control System, Tampering......................6-51
O
Odometer......................................................4-22
Trip ...........................................................4-22
Off-Road
Recovery....................................................5-10
Oil
Engine.......................................................6-15
Engine Oil Life System.................................6-18
Pressure Gage............................................4-33
Pressure Light.............................................4-34
Older Children, Restraints................................2-30
Online Owner Center........................................ 8-5
8

OnStar, Privacy..............................................8-19
Outlet Adjustment............................................4-17
Outlets
Accessory Power.........................................4-14
Outside
Convex Mirror.............................................3-43
Heated Mirrors............................................3-44
Manual Mirrors............................................3-42
Power Mirrors.............................................3-43
Towing Mirrors............................................3-42
Owner Checks and Services.............................7-10
Owners, Canadian.............................................. iii
P
Paint, Damage..............................................6-108
Park
Shifting Into................................................3-37
Shifting Out of............................................3-38
Parking
Brake........................................................3-36
Over Things That Burn.................................3-39
Passenger Airbag Status Indicator.....................4-25
Passenger Sensing System..............................2-73
Passing.........................................................5-10
PASS-Key
®III+ Electronic Immobilizer...............3-20
PASS-Key®III+ Electronic Immobilizer
Operation...................................................3-20
Perchlorate Materials Requirements, California...... 6-4Power
Door Locks.................................................3-10
Retained Accessory (RAP)............................3-23
Seat............................................................ 2-3
Steering Fluid.............................................6-38
Windows....................................................3-17
Pregnancy, Using Safety Belts..........................2-29
Privacy..........................................................8-18
Navigation System.......................................8-20
OnStar.......................................................8-19
Radio Frequency Identification (RFID).............8-20
Program
Courtesy Transportation................................8-11
Programmable Automatic Door Locks.................3-10
Proposition 65 Warning, California....................... 6-4
R
Radio Frequency
Identification (RFID).....................................8-20
Statement...................................................8-20
Radio(s)........................................................4-62
Radios
Reception...................................................4-78
Setting the Clock.........................................4-60
Theft-Deterrent............................................4-77
Reading Lamps..............................................4-13
Rear Air Conditioning and Heating System.........4-18
9

Safety Warnings and Symbols.............................. iv
Scheduled Maintenance..................................... 7-3
Scheduling Appointments.................................8-10
Seats
Head Restraints............................................ 2-2
Power Seat.................................................. 2-3
Rear Seat Operation...................................... 2-6
Reclining Seatbacks...................................... 2-4
Secondary Latch System.................................6-97
Securing a Child Restraint
Rear Seat Position......................................2-49
Right Front Seat Position......................2-52, 2-56
Security
Light..........................................................4-34
Service........................................................... 6-3
Accessories and Modifications......................... 6-3
Adding Equipment to the Outside of the
Vehicle..................................................... 6-5
Doing Your Own Work................................... 6-4
Engine Soon Lamp......................................4-30
Parts Identification Label.............................6-109
Publications Ordering Information...................8-17
Scheduling Appointments..............................8-10
Servicing Your Airbag-Equipped Vehicle..............2-78
Setting the Clock............................................4-60Sheet Metal Damage.....................................6-107
Shifting
Out of Park................................................3-38
Shifting Into Park............................................3-37
Signals, Turn and Lane-Change.......................... 4-4
Sliding Side Door............................................3-12
Spare Tire....................................................6-101
Installing....................................................6-90
Removing...................................................6-87
Storing.....................................................6-100
Specifications and Capacities..........................6-116
Speedometer..................................................4-22
StabiliTrak
®Indicator Light...............................4-29
StabiliTrak®System.......................................... 5-5
Start Vehicle, Remote....................................... 3-7
Starting the Engine.........................................3-23
Steering.......................................................... 5-8
Steering Wheel Controls, Audio.........................4-77
Steering Wheel, Tilt Wheel................................. 4-3
Storage Areas................................................3-44
Stuck in Sand, Mud, Ice, or Snow.....................5-18
Sun Visors.....................................................3-19
Swing-Out Side Door, 60/40.............................3-13
Swing-Out Windows........................................3-18
11

Traction
StabiliTrak®System....................................... 5-5
Transmission
Fluid, Automatic..................................6-21, 6-24
Transmission Operation, Automatic............3-27, 3-32
Transportation Program, Courtesy......................8-11
Trip Odometer................................................4-22
Turn and Lane-Change Signals.......................... 4-4
Turn Signal/Multifunction Lever........................... 4-4
U
Uniform Tire Quality Grading............................6-81
V
Vehicle
Control........................................................ 5-3
Loading......................................................5-19
Remote Start................................................ 3-7
Running While Parked..................................3-41
Symbols......................................................... ivVehicle Customization, DIC..............................4-52
Vehicle Data Recording and Privacy..................8-18
Vehicle Identification
Number (VIN)............................................6-109
Service Parts Identification Label..................6-109
Ventilation Adjustment......................................4-17
Visors...........................................................3-19
Voltmeter Gage..............................................4-27
W
Warning Lights, Gages, and Indicators...............4-20
Warnings
DIC Warnings and Messages........................4-44
Hazard Flashers............................................ 4-3
Safety and Symbols......................................... iv
Wheels
Alignment and Tire Balance..........................6-82
Different Size..............................................6-80
Replacement...............................................6-82
When It Is Time for New Tires..........................6-78
Where to Put the Child Restraint.......................2-40
13