2003 CHEVROLET ASTRO ECO mode

Top Strap Anchor Location
If your vehicle is a cargo van, the anchoring point for
a top strap is located at the rear
of the seat cushion
on the right front passsenger's seat spacer bar.
Anchor the top strap through the two slots.
If your vehicle is a passenger van with rear seats, it is
recommended that you secure a child restraint with a top
strap only in the outboard positions of the second row.
Bucket Seats: An anchoring point is located below
the rear of the seat cushion on the spacer bar.
Anchor the top strap through the two slots on the bar.
Cargo Van Models
Passenger Van Bucket Seats
1 -50

If the sliding door is open and you press the power door
lock switch, the sliding door will not lock immediately.
After you close the door, the system comes on and locks
the sliding door in about five seconds.
When the key is in the ignition and the
power door lock
switch is pressed with a door open, all doors are
locked while the driver’s side door remains unlocked.
Programmable Automatic
Door Locks
Your vehicle is equipped with an auto IocWunlock
feature which enables you
to program your power
door locks.
Your vehicle left the factory programmed to have all the
doors lock automatically when the shift lever is moved out
of PARK (P).
All of the doors will unlock when the shift
lever is moved back into PARK (P). The following
instructions detail how to program your door locks. To
enter the program mode you need to do the following:
1. Begin with the ignition in OFF. Then, pull back on the
turn signaVmultifunction lever all the way toward you
and hold
it while you perform the next step.
2. Turn your key to RUN and
OFF twice. Then, with
the key in
OFF, release the turn signaVmultifunction
lever. Once you do this, you will hear the lock
switch lock and unlock.
You are now ready to program the automatic door
locks. Select one
of the following four programming
options and follow the instructions. You
will have thirty
seconds to begin programming.
If you exceed the
thirty second limit, the locks will automatically lock and
unlock to indicate that you have left the program mode.
If this occurs, repeat the procedure beginning with
Step
1. You can exit the program mode any time by
turning the ignition to RUN. The locks will automatically
lock and unlock
to indicate that you are leaving the
program mode. If the IocWunlock switches are not
pressed while in the programming mode, the auto
IocWunlock setting will not be modified.
2-9

If you manually select SECOND (2), the transmission
will drive in second gear. You may use this feature
for reducing torque to the rear wheels when you
are trying to start your vehicle from a stop on slippery
road surfaces.
FIRST (1): This position gives you even more power
(but lower fuel economy) than
SECOND (2). You can
use it on very steep hills, or in deep snow or mud.
If the
shift selector lever is put in FIRST
(I), the transmission
won’t shift into first gear until the vehicle is going
slow enough.
Notice: If your rear wheels won’t turn, don’t try
to drive. This might happen if you were stuck in
very deep sand or mud or were
up against a solid
object. You could damage your transmission.
Also, if you stop when going uphill, don’t hold
your vehicle there with only the accelerator pedal.
This could overheat and damage the transmission. Use your brakes or shift into
PARK (P) to hold
your vehicle in position on a hill.
Tow/HauI Mode Button
I
Q
Your vehicle is equipped with a tow/haul button.
The button is located on the end of the column shift
lever. You can use this feature to assist when towing
or hauling a heavy load.
To select the tow/haul mode, press in the button.
The TOW/HAUL light on the instrument panel cluster
will come on. To go back to normal operation, press the
button again. The indicator light on the instrument
panel cluster will go out. See
Tow/Hau/ Mode Light on
page 3-36 for more information.
2-25

Programming the HomeLink
Transmitter
Do not use the HomeLink@ Transmitter with any garage
door opener that does not have the “stop and reverse”
feature. This includes any garage door opener model
manufactured before April
1, 1982.
Keep the original transmitter for use in other vehicles as
well as for future HomeLink@ programming. It is also
recommended that upon the sale of the vehicle, the
programmed HomeLink@ buttons should be erased for
security purposes. Refer to “Erasing HomeLink@ Buttons”
or, for assistance, contact HomeLinkO on the internet at:
www.home1ink.com or by calling 1-800-355-351 5.
Be sure that people and objects are clear of the
garage door or gate operator you are programming.
When programming a garage door, it is advised to park
outside of the garage.
It is recommended that a new battery be installed in
your hand-held transmitter for quicker and more
accurate transmission of the radio frequency. Your
vehicle’s engine should be turned
off while
programming the transmitter. Follow these steps
to
program up to three channels:
1. Press and hold down the two outside buttons,
releasing only when the indicator light begins
to
flash, after 20 seconds. Do not hold down the
buttons for longer than
30 seconds and do not
repeat this step
to program a second and/or third
transmitter to the remaining two HomeLink@ buttons.
2. Position the end of your hand-held transmitter about
1 to 3 inches (3 to 8 cm) away from the HomeLink@
buttons while keeping the indicator light in view.
3. Simultaneously press and hold both the desired
button on HomeLink@ and the hand-held transmitter
button.
Do not release the buttons until Step 4
has been completed.
Some entry gates and garage door openers may
require you to substitute Step 3 with the procedure
noted in “Gate Operator and Canadian
Programming’’ later in this section.
4. The indicator light will flash slowly at first and then
rapidly after HomeLink@ successfully receives the
frequency signal from the hand-held transmitter.
Release both buttons.
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Continue to press and hold the HomeLink@ button while
you press and release every two seconds (cycle) your
hand-held transmitter until the frequency signal has been
successfully accepted by HomeLink@. The indicator
light will flash slowly at first and then rapidly. Proceed
with Step
4 under “Programming HomeLink@“ to
complete.
Using HomeLink@
Press and hold the appropriate HomeLink@ button for
at least half of a second. The indicator light will come on
while the signal is being transmitted.
Erasing HomeLinP Buttons
To erase programming from the three buttons do the
following:
1. Press and hold down the two outside buttons until
the indicator light begins to flash, after
20 seconds.
2. Release both buttons. Do not hold for longer than
30 seconds.
HomeLink@ is now in the train (learning) mode and can
be programmed at any time beginning with Step
2
under “Programming HomeLink@.”
Individual buttons can not be erased, but they can be
reprogrammed. See “Reprogramming a Single
HomeLink@ Button” next.
Reprogramming a Single HomeLink*
Button
To program a device to HomeLink@ using a HomeLink@
button previously trained, follow these steps:
1. Press and hold the desired HomeLink@ button.
Do not release the button.
2. The indicator light will begin to flash after
20 seconds. While still holding the HomeLink@
button, proceed with Step
2 under “Programming
HomeLink@.”
Resetting Defaults
To reset HomeLink@ to default settings do the following:
1. Hold down the two outside buttons for about
20 seconds until the indicator light begins to flash.
2. Continue to hold both buttons until the HomeLink@
indicator light turns
off.
3. Release both buttons.
For questions or comments, contact HorneLink@
at 1-800-355-3515, or on the internet at
www.homelink.com.
2-37

Driver Information System
\I
Your vehicle may have this feature. This system displays
the outside air temperature, compass direction and trip
information in the overhead console.
US/MET (United StatedMetric): The US/MET button
allows you
to switch the display between the English and
metric system.
MODE: The MODE button can be used to toggle
between three modes of operation:
OFF, COMP/TEMP
and TRIP.
COMPTTEMP (CompassTTemperature): This display
provides the outside temperature and one of eight
compass readings to indicate the direction the vehicle
is facing.
Before you turn on the ignition and move the vehicle,
the temperature indicated will be the last outside
temperature recorded with the ignition on.
If the outside
temperature
is 37°F (3°C) or lower, the display will
toggle between the word ICE and the current
temperature every eight seconds. This is a warning
to
the driver that road conditions may be icy, and that
appropriate precautions should be taken.
The compass is self-calibrating,
so it does not need to be
manually set. However,
if C (Calibration) is displayed, the
compass will need
to be calibrated. You may also place
the compass in a noncalibrated mode by pressing and
holding the US/MET and MODE buttons simultaneously
while in the COMPREMP mode. After about
10 seconds.
the compass will display
C and you can release the
buttons. Drive the vehicle in a complete 360" circle three
times at a speed of less than 5 mph
(8 km/h), and the
compass will function normally. Once the calibration
is
complete, the display will return to a compass reading.
Variance is the difference between magnetic north
and geographic north. In some areas, the difference
between the two can be great enough
to cause false
compass readings.
2-42

If this happens, follow these instructions to set the
variance for your particular location:
1. Find your location on the zone map. Record your
zone number.
1
2. Press and hold both the US/MET and the MODE
buttons while in the COMP/TEMP mode.
3. After five seconds, the compass will acknowledge
the variation mode by displaying the current zone
number. When it does, release both buttons.
4. Press US/MET until your zone number appears on
5. Press MODE to enter your zone number. Your
the
display.
variance is now set and the display will return to
the COMPREMP mode.
TRIP: Once in the TRIP mode, pressing the MODE
button will take you through the following TRIP functions:
0 AVG ECON (Average Economy): The average
fuel economy since the last reset is displayed.
INST ECON (Instantaneous Economy):
Instantaneous fuel economy for the last second of
driving is displayed.
distance that can be travelled with the remaining
fuel in the tank, based on the fuel economy for the
last few hours of driving.
is displayed.
speed since the last reset is displayed.
To reset the trip computer, press the MODE and
US/MET buttons simultaneously for at least two
seconds. All functions will be displayed briefly once the
system is reset. Reset can only be performed in the
AVG ECON, FUEL USED and AVG SPEED modes.
All three modes are reset simultaneously.
0 RANGE: The display indicates the estimated
0 FUEL USED: The fuel used since the last reset
0 AVG SPEED (Average Speed): The average
2-43

When it begins to get dark, the automatic headlamp
system will switch from DRL to the headlamps or the
last chosen headlamp setting that was used.
To idle your vehicle with the DRL
off, put the transmission
in PARK (P). The DRL
will stay off until you shift out
of PARK (P).
The following does not apply to vehicles first sold
in Canada.
When necessary, you may turn off the automatic
headlamp system and the Daytime Running Lamps
(DRL) feature by following the steps below:
1. Turn the ignition to RUN.
2. Press the DOME OVERRIDE button four times
within six seconds. After the fourth press of the
button, a chime will sound informing you that
the system is
off.
To return to the automatic mode, push the DOME
OVERRIDE button four times within six seconds
(the chime will sound), or turn the ignition to
off and
then to RUN again.
As with any vehicle, you should turn on the regular
headlamp system when you need it.
Interior Lamps
Instrument Panel Brightness Control
The thumbwheel for this feature is located to the right of
the exterior lamps control.
(Instrument Panel Brightness): Turn the thumbwheel
up to brighten the lights or down to dim them.
Moving the thumbwheel up to the first position will
activate the interior dome lamps.
Exit Lighting
With exit lighting, the interior lamps will come on when
you remove the key from the ignition. The lights will not
come on
if the DOME OVERRIDE button is pressed in.
Entry Lighting
Your vehicle is equipped with an illuminated entry
feature.
When a door is opened, the dome lamps will come on
if the DOME OVERRIDE button is in the out position.
When all the doors are closed, the lamps will stay on
for a short period of time and will then go out.
If the
DOME OVERRIDE button is pressed in, the lamps will
not come on.
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