service CHEVROLET EXPRESS CARGO VAN 2006 1.G Owner's Manual

This can happen if you have recently replaced your
battery or if your battery has run down. The diagnostic
system is designed to evaluate critical emission control
systems during normal driving. This may take several
days of routine driving. If you have done this and your
vehicle still does not pass the inspection for lack of OBD
system readiness, your GM dealer can prepare the
vehicle for inspection.
Oil Pressure Gage
The oil pressure gage shows the engine oil pressure in
psi (pounds per square inch) when the engine is running.
Canadian vehicles indicate pressure in kPa (kilopascals).Oil pressure may vary with engine speed, outside
temperature and oil viscosity, but readings above the
low pressure zone indicate the normal operating range.
A reading in the low pressure zone may be caused
by a dangerously low oil level or other problem causing
low oil pressure. Check your oil as soon as possible.
{CAUTION:
Do not keep driving if the oil pressure is low.
If you do, your engine can become so hot that
it catches re. You or others could be burned.
Check your oil as soon as possible and have
your vehicle serviced.
Notice:Lack of proper engine oil maintenance may
damage the engine. The repairs would not be covered
by your warranty. Always follow the maintenance
schedule in this manual for changing engine oil.
United States
Canada
3-39

Change Engine Oil Light
This light is displayed
when your vehicle needs
to be serviced.
If your vehicle has a V8 engine and this light is flashing,
it indicates that the oil level is low.
When this light is on steady, your vehicle needs to be
serviced. SeeScheduled Maintenance (Gasoline Engine)
on page 6-4for more information.
Once the engine oil has been changed, the change
engine oil light must be reset. Until it is reset, the light
will stay on for a while each time the engine is
started. For more information on resetting the system,
see “How to Reset the Engine Oil Life System”
underEngine Oil Life System (Gasoline Engine)
on page 5-16.
Security Light
The light will stay on until the engine starts. If the light
flashes, the Passlock®System has entered a tamper
mode. If the vehicle fails to start, seePasslock®
on page 2-17.
If the light comes on continuously while driving and
stays on, there may be a problem with the Passlock
®
System. Your vehicle will not be protected by Passlock®,
and you should see your GM dealer.
United StatesCanada
3-40

Cruise Control Light
The cruise light comes on whenever you set your
cruise control. SeeCruise Control on page 3-10for
more information.
Reduced Engine Power Light
If the check engine and reduced engine power lights
are on, the throttle may be disabled and a noticeable
reduction in the vehicle’s performance may occur.
If the reduced engine power light is on, but there is no
reduction in performance, proceed to your destination.
The performance may be reduced the next time the
vehicle is driven. The vehicle may be driven at a reduced
speed while the reduced engine power light is on,
but acceleration and speed may be reduced.
Anytime the check engine light stays on, the vehicle
should be taken to an authorized GM dealer as soon
as possible for service. United States
CanadaUnited StatesCanada
3-41

To adjust both tone controls and both speaker controls
to the middle position, first end out of audio mode
by pressing another button, causing the radio to perform
that function, or by waiting five seconds for the display
to return to time of day. Then press and hold AUDIO for
more than two seconds until you hear a beep. CEN
will appear on the display.
Radio Messages
CAL (Calibration):The audio system has been
calibrated for your vehicle from the factory. If CAL
appears on the display it means that the radio has not
been configured properly for your vehicle and must
be returned to the dealer for service.
LOC (Locked):This message is displayed when the
THEFTLOCK
®system has locked up. Take the vehicle
to the dealer for service.
If any error occurs repeatedly or if an error cannot be
corrected, contact your dealer.
Radio with CD
Playing the Radio
PWR (Power):Press this knob to turn the system
on and off.
VOL (Volume):Turn this knob to increase or to
decrease the volume.
RCL (Recall):Press this knob to switch the display
between the radio station frequency and the time. When
the ignition is off, press this knob to display the time.
3-48

To adjust both tone controls and both speaker controls to
the middle position, first end out of audio mode by
pressing another button, causing the radio to perform
that function, or by waiting five seconds for the display
to return to the time of day. Then press and hold the
AUDIO button for more than two seconds until you hear a
beep. CEN will appear on the display.
Adjusting the Speakers (Balance/Fade)
AUDIO:To adjust the balance between the right
and the left speakers, press and release the AUDIO
button until BAL appears on the display. Then press and
hold the up or the down arrow to move the sound
toward the right or the left speakers.
To adjust the fade between the front and the rear
speakers, press and release the AUDIO button until
FAD appears on the display. Then press and hold the up
or the down arrow to move the sound toward the front
or the rear speakers.
The fade feature may not be available on all radio
systems.
To adjust balance or fade to the middle position, select
BAL or FAD. Then press and hold AUDIO for more
than two seconds until you hear a beep. L and a zero
or F and a zero will appear on the display.To adjust both tone controls and both speaker controls
to the middle position, first end out of audio mode
by pressing another button, causing the radio to perform
that function, or by waiting five seconds for the display
to return to the time of day. Then press and hold
the AUDIO button for more than two seconds until you
hear a beep. CEN will appear on the display.
Radio Messages
CAL (Calibration):The audio system has been
calibrated for your vehicle from the factory. If CAL
appears on the display it means that the radio has not
been configured properly for your vehicle and must
be returned to the dealer for service.
LOC (Locked):This message is displayed when the
THEFTLOCK
®system has locked up. Take the vehicle
to the dealer for service.
If any error occurs repeatedly or cannot be corrected,
contact your dealer.
Playing a CD
Insert a CD partway into the slot, label side up. The
player will pull it in and the CD should begin playing.
CD will appear on the display. If you want to insert a CD
with the ignition off, first press the eject button or the
RCL knob.
3-50

Setting Preset PTYs (RDS)
These buttons have factory PTY presets. Up to
12 PTYs (six FM1 and six FM2), can be programmed
on the six numbered pushbuttons, by performing
the following steps:
1. Press BAND to select FM1 or FM2.
2. Press the TYPE button to activate program type
select mode. TYPE and the last selected PTY will
appear on the display.
3. Turn the TYPE knob or press and release the
TYPE button to select a PTY.
4. Press and hold one of the six numbered
pushbuttons until you hear a beep. Whenever that
numbered pushbutton is pressed, the PTY that
was set will return.
5. Repeat the steps for each pushbutton.
RDS Messages
INFO (Information):If the current station has a
message, the information symbol will appear on
the display. Press this button to see the message.
The message may display the artist, song title, call in
phone numbers, etc.If the entire message is not displayed, parts of the
message will appear every three seconds. To scroll
through the message, press and release the INFO
button. A new group of words will appear on the display
after every press of the button. Once the complete
message has been displayed, the information symbol
will disappear from the display until another new
message is received. The last message can be
displayed by pressing the INFO button. You can view
the last message until a new message is received
or a different station is tuned to.
Radio Messages
CAL ERR (Calibration Error):The audio system
has been calibrated for your vehicle from the factory.
If CAL ERR appears on the display, it means that
the radio has not been configured properly for the
vehicle and must be returned to your GM dealer
for service.
LOCKED:This message is displayed when the
THEFTLOCK
®system has locked up. Take the vehicle
to your GM dealer for service.
If any error occurs repeatedly, or if an error cannot be
corrected, contact your GM dealer.
3-58

RDS Messages
INFO (Information):If the current station has a
message, INFO will appear on the display. Press this
button to see the message. The message may display
the artist, song title, call in phone numbers, etc.
If the entire message is not displayed, parts of the
message will appear every three seconds. To scroll
through the message, press and release the INFO button.
A new group of words will appear on the display after
every press of this button. Once the complete message
has been displayed, INFO will disappear from the display
until another new message is received. The last message
can be displayed by pressing the INFO button. You can
view the last message until a new message is received or
a different station is tuned to.
Radio Messages
CAL ERR (Calibration Error):The audio system
has been calibrated for your vehicle from the factory.
If CAL ERR appears on the display, it means that the
radio has not been configured properly for the vehicle
and must be returned to your GM dealer for service.
LOCKED:This message is displayed when the
THEFTLOCK
®system has locked up. Take the vehicle
to your GM dealer for service.
If any error occurs repeatedly, or if an error cannot be
corrected, contact your GM dealer.
Playing a CD
If the ignition or radio is turned off, with a CD in the
player, it will stay in the player. When the ignition
or radio is turned on, the CD will start playing where it
stopped, if it was the last selected audio source.
When a CD is inserted, the CD symbol will appear on
the display. As each new track starts to play, the
track number will appear on the display.
The CD player can play the smaller 3 inch (8 cm) single
CDs with an adapter ring. Full-size CDs and the
smaller CDs are loaded in the same manner.
If playing a CD-R, the sound quality may be reduced
due to CD-R quality, the method of recording, the quality
of the music that has been recorded, and the way the
CD-R has been handled. There may be an increase
in skipping, difficulty in finding tracks, and/or difficulty in
loading and ejecting. If these problems occur, check
the bottom surface of the CD. If the surface of the CD is
damaged, such as cracked, broken, or scratched, the
CD will not play properly. If the surface of the CD
is soiled, seeCare of Your CDs on page 3-78for more
information.
If there is no apparent damage, try a known good CD.
3-70

When cleaning the cassette tape player with the
recommended non-abrasive cleaning cassette, it is
possible that the cassette may eject, because the cut
tape detection feature on the radio may recognize it as a
broken tape, in error. To prevent the cleaning cassette
from being ejected, use the following steps:
1. Turn the ignition on.
2. Turn the radio off.
3. Press and hold the TAPE DISC button for
five seconds. READY will appear on the display
and the cassette symbol will flash for five seconds.
4. Insert the scrubbing action cleaning cassette.
5. Eject the cleaning cassette after the manufacturer’s
recommended cleaning time.
When the cleaning cassette has been ejected, the
cut tape detection feature will be active again.
A non-scrubbing action, wet-type cleaner which uses a
cassette with a fabric belt to clean the tape head
can be used. This type of cleaning cassette will not
eject on its own. A non-scrubbing action cleaner may not
clean as thoroughly as the scrubbing type cleaner.
The use of a non-scrubbing action, dry-type cleaning
cassette is not recommended.After the player is cleaned, press and hold the eject
button for five seconds to reset the CLEAN indicator.
The radio will display --- or CLEANED to show the
indicator was reset.
Cassettes are subject to wear and the sound quality may
degrade over time. Always make sure the cassette tape
is in good condition before the tape player is serviced.
Care of Your CDs
Handle CDs carefully. Store them in their original cases
or other protective cases and away from direct
sunlight and dust. The CD player scans the bottom
surface of the disc. If the surface of a CD is damaged,
such as cracked, broken, or scratched, the CD will
not play properly or not at all. If the surface of a CD is
soiled, take a soft, lint free cloth or dampen a clean, soft
cloth in a mild, neutral detergent solution mixed with
water, and clean it. Make sure the wiping process starts
from the center to the edge.
Do not touch the bottom side of a CD while handling it;
this could damage the surface. Pick up CDs by
grasping the outer edges or the edge of the hole and
the outer edge.
3-78

StabiliTrak®System
If your vehicle has StabiliTrak®, it combines anti-lock
brake, traction and stability control systems and
helps the driver maintain directional control of the
vehicle in most driving conditions.
When you first start your vehicle and begin to drive
away, the system performs several diagnostic checks
to ensure that it is working properly. You may hear
or feel the system working.This is normal and does not mean there is a problem
with your vehicle. The system should initialize before
the vehicle reaches 20 mph (32 km/h). In some cases,
it may take approximately 2 miles (3.2 km) of driving
before the system initializes.
The following chart describes the StabiliTrak
®not ready
light and the StabiliTrak®indicator light.
StabiliTrak®Not Ready Light StabiliTrak®Indicator Light Meaning
Off OffStabiliTrak®is enabled, but not
active. The traction control is not
active.
Off FlashingStabiliTrak
®is active, or the traction
control is active.
Off OnStabiliTrak
®is disabled due to
system fault. When on after
restarting, the vehicle needs to be
serviced.
On OffStabiliTrak
®is disabled due to
system initialization or the driver has
disabled with switch.
On FlashingStabiliTrak
®is not initialized and not
disabled. The traction control is
active.
4-9

For more information, seeStabiliTrak®Not Ready Light
on page 3-35andStabiliTrak®Indicator Light on
page 3-35.
Pressing and holding the
StabiliTrak
®button located
on the instrument panel
for more than five seconds
can turn off StabiliTrak
®
and part of the traction
control system.
For your safety, the system can only be disabled when
the vehicle speed is less than 20 mph (32 km/h).
You will hear three chimes and the StabiliTrak
®not
ready light will come on.
To turn on the StabiliTrak
®system, press the
StabiliTrak®button again. StabiliTrak®will automatically
turn back on when the vehicle speed exceeds 20 mph
(32 km/h). You will hear one chime and the StabiliTrak
®
not ready light will turn off.
When the StabiliTrak
®system has been turned off
you may still hear system noises as a result of
the brake-traction control coming on.It is recommended to leave the system on for normal
driving conditions, but it may be necessary to turn
the system off if your vehicle is stuck in sand, mud, ice
or snow, and you want to “rock” your vehicle to attempt
to free it. SeeIf Your Vehicle is Stuck in Sand, Mud,
Ice, or Snow on page 4-29.
StabiliTrak®System Operation
The StabiliTrak®system is normally on, except when
the system is initializing or has been disabled with
the StabiliTrak
®button. The StabiliTrak®system will
automatically activate to assist the driver in maintaining
vehicle directional control in most driving conditions.
When activated, the StabiliTrak
®system may reduce
engine power to the wheels and apply braking to
individual wheels as necessary to assist the driver with
vehicle directional control. If your vehicle is in cruise
control when the system activates, the StabiliTrak
®
indicator light on the instrument panel will flash, and
the cruise control will automatically disengage. When
the StabiliTrak
®system is no longer active, you
may re-engage the cruise control. SeeCruise Control
on page 3-10.
The StabiliTrak
®system may also turn off automatically
if it determines that a problem exists with the system.
If the problem does not clear itself after restarting
the vehicle, you should see your dealer for service.
4-10