Remote Keyless Entry System Operation; Matching Transmitter(S) To Your Vehicle - Chevrolet 2004 Astro Owner's Manual

•
Check the location. Other vehicles or objects may
be blocking the signal. Take a few steps to the
left or right, hold the transmitter higher, and
try again.
•
Check to determine if the battery replacement is
necessary. See ''Battery Replacement'' under
Remote Keyless Entry System Operation on
page 2-4 .
•
If you are still having trouble, see your dealer or a
qualified technician for service.
Remote Keyless Entry System
Operation
If your vehicle has this feature, you can lock and unlock
your doors from about 3 feet (1 m) up to 30 feet
(9 m) away using the remote keyless entry transmitter
supplied with your vehicle.
UNLOCK: Press UNLOCK once for the driver's door to
unlock, the parking lamps to flash and the interior
lights to go on.
If you press UNLOCK again within three seconds, all
doors will unlock.
LOCK: Press LOCK to lock all the doors. Press LOCK
again within three seconds and the horn will chirp.
2-4
REAR 2X: Press the REAR button twice within three
seconds to unlock the rear hatch or cargo doors.
The parking lamps will flash and the interior lights will
go on. If the engine is running, the automatic
transmission must be in PARK (P) or NEUTRAL (N) for
the REAR 2X button to operate.
L
(Panic Alarm): Press this button for the horn to
sound and the headlamps and taillamps to flash for up to
30 seconds. This can be turned off by pressing the
panic button again, waiting for 30 seconds, or starting
the vehicle.
Matching Transmitter(s) to Your
Vehicle
Each remote keyless entry transmitter is coded to
prevent another transmitter from unlocking your vehicle.
If a transmitter is lost or stolen, a replacement can
be purchased through your dealer. Remember to bring
any remaining transmitters with you when you go to
your dealer. When the dealer matches the replacement
transmitter to your vehicle, any remaining transmitters
must also be matched. Once your dealer has coded the
new transmitter, the lost transmitter will not unlock
your vehicle. Each vehicle can have a maximum of four
transmitters matched to it.