Operation; Matching Transmitter(S) To Your Vehicle - GMC SIERRA CK2 1999 Owner's Manual

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This system has a range of about 3 feet (1 m) up to
30 feet (9 m). 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:
D
Check to determine if battery replacement or
transmitter resynchronization is necessary. See the
instructions that follow.
D
Check the distance. You may be too far from your
vehicle. You may need to stand closer during rainy
or snowy weather.
D
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.
D
If you're still having trouble, see your dealer or a
qualified technician for service.

Operation

To unlock the driver's door, press the UNLOCK button.
The interior lamps will come on for 40 seconds or until
the ignition is turned on. If you press the UNLOCK
button again within five seconds, all the remaining doors
will unlock.
Press the LOCK button to lock all the doors. The
interior lamps will come on for two seconds as soon as
all the doors are closed. If you press the LOCK button
twice the horn will chirp to confirm that the doors have
locked. This will only occur if the transmitter has been
programmed with the ignition off.
If you do not want the horn to chirp as a confirmation
that the doors have locked or unlocked, please consult
your dealer.

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 only four transmitters
matched to it.
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