GMC Cadillac CTS 2004 Owner's Manual page 71

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
With this feature, you can lock and unlock the doors or
the trunk and turn on your vehicle's interior lamps
from about 10 feet (3 m) away using the remote keyless
entry transmitter supplied with your vehicle.
You can program your vehicle so that the exterior lamps
will flash and/or the horn will sound when you lock
the doors with the remote keyless entry transmitter.
See DIC Vehicle Personalization on page 3-88 for more
information on programming this feature.
If your vehicle is programmed for remote confirmation,
the doors must be closed for this feature to work. If
a door is open, remote confirmation will be canceled.
Q
(Lock): Press this
symbol on the remote
keyless entry transmitter
to lock the doors.
This also arms the
theft-deterrent system.
2-5