GMC 2012 Sierra - Manual (Page 48)

Black plate (4,1) GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
2-4 Keys, Doors, and Windows
Pressing K on the RKE transmitter
disarms the content theft‐deterrent
system. See Anti-theft Alarm
System on page 2‑11.
L (Vehicle Locator/Panic
Alarm): Press and release to
locate the vehicle. The turn signal
lamps flash and the horn sounds
three times.
Press and hold L for more than
two seconds to activate the panic
alarm. The turn signal lamps flash
and the horn sounds repeatedly for
30 seconds. The alarm turns off
when the ignition is moved to
ON/RUN or
L is pressed again.
The ignition must be in LOCK/OFF
for the panic alarm to work.
Programming Transmitters to
the Vehicle
Only RKE transmitters programmed
to this vehicle will work. If a
transmitter is lost or stolen, a
replacement can be purchased and
programmed through your dealer.
When the replacement transmitter
is programmed to this vehicle, all
remaining transmitters must also be
reprogrammed. Any lost or stolen
transmitters will no longer work
once the new transmitter is
programmed. Each vehicle can
have up to eight transmitters
programmed to it. See your dealer
for transmitter programming.
Battery Replacement
Replace the battery if the
REPLACE BATTERY IN REMOTE
KEY message displays in the DIC.
Notice: When replacing the
battery, do not touch any of the
circuitry on the transmitter. Static
from your body could damage the
transmitter.
To replace the battery:
1. Separate the transmitter with a
flat, thin object, such as a flat
head screwdriver.
. Carefully insert the tool
into the notch located
along the parting line of the
transmitter. Do not insert
the tool too far. Stop as
soon as resistance is felt.
. Twist the tool until the
transmitter is separated.
2. Remove the old battery. Do not
use a metal object.