2004 CHEVROLET ASTRO park assist

Keep the original transmitter for use in other vehicles as
well as for future HomeLinkžprogramming. It is also
recommended that upon the sale of the vehicle,
the programmed HomeLink
žbuttons should be erased
for security purposes. Refer to ªErasing HomeLinkž
Buttonsº or, for assistance, contact HomeLinkžon the
internet at: www.homelink.com or by calling
1-800-355-3515.
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
¯ash, 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
žbuttons.
2. Position the end of your hand-held transmitter about
1 to 3 inches (3 to 8 cm) away from the HomeLink
ž
buttons while keeping the indicator light in view.3. Simultaneously press and hold both the desired
button on HomeLink
žand 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 ªGate Operator and Canadian
Programmingº later in this section.
4. The indicator light will ¯ash slowly at ®rst and then
rapidly after HomeLink
žsuccessfully receives the
frequency signal from the hand-held transmitter.
Release both buttons.
5. Press and hold the newly-trained HomeLink
žbutton
and observe the indicator light.
If the indicator light stays on constantly,
programming is complete and your device should
activate when the HomeLink
žbutton is pressed and
released.
To program the remaining two HomeLink
žbuttons,
begin with Step 2 under ªProgramming HomeLinkž.º
Do not repeat Step 1 as this will erase all of the
programmed channels.
If the indicator light blinks rapidly for two seconds
and then turns to a constant light, continue with
Steps 6 through 8 following to complete the
programming of a rolling-code equipped device
(most commonly, a garage door opener).
2-32

If yours was built with trailering options, as many are,
it's ready for heavier trailers. But trailering is different
than just driving your vehicle by itself. Trailering means
changes in handling, acceleration, braking, durability
and fuel economy. Successful, safe trailering takes
correct equipment, and it has to be used properly.
That's the reason for this part. In it are many time-tested,
important trailering tips and safety rules. Many of
these are important for your safety and that of your
passengers. So please read this section carefully before
you pull a trailer.
If You Do Decide To Pull A Trailer
If you do, here are some important points:
·There are many different laws, including speed limit
restrictions, having to do with trailering. Make sure
your rig will be legal, not only where you live
but also where you'll be driving. A good source for
this information can be state or provincial police.
·Consider using a sway control. See ªHitchesº later
in this section.
·Don't tow a trailer at all during the ®rst 500 miles
(800 km) your new vehicle is driven. Your engine,
axle or other parts could be damaged.
·Then, during the ®rst 500 miles (800 km) that you
tow a trailer, don't drive over 50 mph (80 km/h)
and don't make starts at full throttle. This helps your
engine and other parts of your vehicle wear in at
the heavier loads.
·See also ªDriving on Gradesº later in this section.
Three important considerations have to do with weight:
·the weight of the trailer,
·the weight of the trailer tongue
·and the weight on your vehicle's tires.
Tow/Haul Mode
Tow/haul is designed to assist while your vehicle is
pulling a large or heavy load or trailer. Tow/haul is most
useful while pulling such a load in rolling terrain, in
stop-and-go traffic, or when you need improved
low-speed control, such as when parking. The purpose
of the tow/haul mode is to:
·Reduce the frequency and improve the predictability
of transmission shifts,
·provide the same solid shift feel when pulling a
heavy load as when the vehicle is unloaded, and
·improve control of vehicle speed while requiring less
throttle pedal activity.
4-36

To contact NHTSA, you may either call the Auto Safety
Hotline toll-free at 1-800-424-9393 (or 366-0123 in
the Washington, D.C. area) or write to:
NHTSA, U.S. Department of Transportation
Washington, D.C. 20590
You can also obtain other information about motor
vehicle safety from the hotline.
Reporting Safety Defects to the
Canadian Government
If you live in Canada, and you believe that your vehicle
has a safety defect, you should immediately notify
Transport Canada, in addition to notifying General
Motors of Canada Limited. You may write to:
Transport Canada
330 Sparks Street
Tower C
Ottawa, Ontario K1A 0N5
Reporting Safety Defects to General
Motors
In addition to notifying NHTSA (or Transport Canada) in
a situation like this, we certainly hope you'll notify us.
Please call us at 1-800-222-1020, or write:
Chevrolet Motor Division
Chevrolet Customer Assistance Center
P.O. Box 33170
Detroit, MI 48232-5170
In Canada, please call us at 1-800-263-3777 (English)
or 1-800-263-7854 (French). Or, write:
General Motors of Canada Limited
Customer Communication Centre, 163-005
1908 Colonel Sam Drive
Oshawa, Ontario L1H 8P7
Service Publications Ordering
Information
Service Manuals
Service Manuals have the diagnosis and repair
information on engines, transmission, axle, suspension,
brakes, electrical, steering, body, etc.
RETAIL SELL PRICE: $120.00
7-11

Audio System(s) (cont.)
Setting the Time for Radios with HR and
MN Buttons.............................................3-38
Setting the Time for Radios with the
Set Button..............................................3-38
Theft-Deterrent Feature................................3-47
Understanding Radio Reception.....................3-50
Automatic Headlamp System............................3-13
Automatic Transmission
Fluid..........................................................5-22
Operation...................................................2-21
Automatic Transmission Check..........................6-25
Automatic Transmission Shift Lock Control
System Check.............................................6-26
B
Backing Up....................................................4-42
Battery..........................................................5-42
Battery Replacement......................................... 2-5
Battery Run-Down Protection............................3-16
Before Leaving on a Long Trip.........................4-21
Bench Seat............................................1-11, 1-58
Body Lubrication Service..................................6-25
Brake
Parking......................................................2-24Brake (cont.)
System Inspection.......................................6-29
System Warning Light..................................3-28
Brake Adjustment............................................5-41
Brake Fluid....................................................5-39
Brake Pedal Travel.........................................5-41
Brake Wear...................................................5-41
Brakes..........................................................5-39
Braking........................................................... 4-6
Braking in Emergencies..................................... 4-9
Break-In, New Vehicle.....................................2-17
Bucket Seats, Rear.........................................1-12
Bulb Replacement...........................................5-49
Front Turn Signal Lamps..............................5-53
Halogen Bulbs............................................5-49
Headlamps.................................................5-50
Replacement Bulbs......................................5-55
Taillamps....................................................5-54
Buying New Tires...........................................5-70
C
California Fuel.................................................. 5-5
Canada ± Customer Assistance.......................... 7-4
Canadian Owners................................................ ii
Canadian Roadside Assistance........................... 7-7
2

Manual Seats................................................... 1-2
Manual Windows............................................2-14
Matching Transmitter(s) to Your Vehicle............... 2-4
Mexico, Central America and Caribbean Islands/
Countries (Except Puerto Rico and U.S. Virgin
Islands) ± Customer Assistance....................... 7-5
Mirrors
Manual Rearview Mirror................................2-30
Outside Convex Mirror.................................2-31
Outside Manual Mirror..................................2-30
Outside Power Mirrors..................................2-30
Model Reference................................................ vi
MyGMLink.com................................................ 7-3
N
New Vehicle Break-In......................................2-17
Normal Maintenance Replacement Parts...........5-104
O
Odometer......................................................3-25
Off-Road Recovery..........................................4-11
Oil
Engine.......................................................5-13
Pressure Gage............................................3-34Older Children, Restraints................................1-35
Online Owner Center........................................ 7-3
Operation Tips................................................3-20
Other Warning Devices...................................... 3-5
Outlet Adjustment............................................3-20
Outside
Convex Mirror.............................................2-31
Manual Mirror.............................................2-30
Power Mirrors.............................................2-30
Overhead Console..........................................2-36
Overseas ± Customer Assistance........................ 7-4
Owners, Canadian............................................... ii
Owner's Information........................................7-12
P
Park (P)
Shifting Into................................................2-25
Shifting Out of............................................2-27
Parking
Brake........................................................2-24
Over Things That Burn.................................2-28
Parking Brake and Automatic Transmission
Park (P) Mechanism Check...........................6-27
Parking on Hills..............................................4-43
Part A - Scheduled Maintenance Services............ 6-4
Part B - Owner Checks and Services................6-24
10

Removing the Flat Tire and Installing the
Spare Tire..................................................5-80
Removing the Rear Seats.................................. 1-7
Removing the Spare Tire and Tools...................5-76
Removing the Wheel Covers............................5-79
Replacement Bulbs.........................................5-55
Replacing Brake System Parts..........................5-42
Replacing Restraint System Parts
After a Crash..............................................1-71
Replacing the Rear Seats.................................. 1-9
Reporting Safety Defects
Canadian Government..................................7-11
General Motors...........................................7-11
United States Government............................7-10
Reprogramming a Single HomeLink
žButton.......2-34
Resetting Defaults...........................................2-34
Restraint System Check...................................6-24
Checking Your Restraint Systems...................1-70
Replacing Restraint System Parts
After a Crash..........................................1-71
Restraint Systems
Checking....................................................1-70
Replacing Parts...........................................1-71
Retained Accessory Power (RAP)......................2-18
Right Front Passenger Position, Safety Belts......1-27
Roadside
Assistance Program....................................... 7-6Rocking Your Vehicle To Get It Out...................4-28
Routing, Engine Drive Belt..............................5-105
Running Your Engine While You Are Parked.......2-29
S
Safety Belt
Reminder Light............................................3-26
Safety Belts
Care of......................................................5-89
Center Passenger Position............................1-27
Driver Position............................................1-18
How to Wear Safety Belts Properly................1-18
Questions and Answers About Safety Belts.....1-17
Rear Safety Belt Comfort Guides for Children
and Small Adults......................................1-32
Rear Seat Passengers.................................1-29
Right Front Passenger Position......................1-27
Safety Belt Extender....................................1-34
Safety Belt Use During Pregnancy.................1-26
Safety Belts Are for Everyone.......................1-13
Safety Chains.................................................4-40
Safety Warnings and Symbols.............................. iii
Sealed Beam Headlamp..................................5-50
12