Remote Alarm - GMC 2003 Yukon Owner's Manual

At times you may notice a decrease in range. This is
normal for any remote keyless entry system. If the
transmitter does not work or if you have to stand closer
to your vehicle for the transmitter to work, try this:
•
Check the distance. You may be too far from your
vehicle. You may need to stand closer during
rainy or snowy weather.
•
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 battery replacement is
necessary. See "Battery Replacement" under
Remote Keyless Entry System Operation on
page 2-5 .
•
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: Pressing this button once will unlock the
driver's door. The parking lamps will flash and the interior
lights will come on. The ground illumination lamps will
come on. Pressing UNLOCK again within three seconds
will cause the remaining doors to unlock. The parking
lamps will flash and the interior lights will come on.
LOCK: Pressing this button once will lock all of the
doors. Wait one second, then press LOCK again and the
horn will chirp.
Operating the keyless entry transmitter may interact with
the theft-deterrent system. See Content Theft-Deterrent
on page 2-16 .

Remote Alarm

When the panic button with the horn symbol on the
keyless entry transmitter is pressed, the horn will sound
and the headlamps and taillamps will 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.
2-5