GMC 2016 Sierra Owner's Manual page 44

Fast Flash : Vehicle is unsecured.
A door, the liftgate or the hood
is open.
Slow Flash : Alarm system is
armed.
Arming the Alarm System
1. Turn off the vehicle.
2. Lock the vehicle in one of
three ways:
Use the RKE transmitter.
Use the Keyless Access
system.
With a door open, press
on the interior of the door.
3. After 30 seconds, the alarm
system will arm and the
indicator light will begin to
slowly flash. Pressing
RKE transmitter a second time
will bypass the 30-second
delay and immediately arm the
alarm system.
The vehicle alarm system will not
arm if the doors are locked with
the key.
If the driver door is opened without
first unlocking with the RKE
transmitter, the horn will chirp and
the lights will flash to indicate
pre-alarm. If the vehicle is not
started, or the door is not unlocked
by pressing
transmitter during the 10-second
pre-alarm, the alarm will be
activated.
The alarm will also be activated if a
passenger door, the liftgate, or the
hood is opened without first
disarming the system. When the
alarm is activated, the turn signals
flash and the horn sounds for about
30 seconds. The alarm system will
then re-arm to monitor for the next
unauthorized event.
Disarming the Alarm System
on the
To disarm the alarm system or turn
off the alarm if it has been activated:
Press on the RKE transmitter.
Unlock the vehicle using the
Keyless Access system.
Start the vehicle.
Keys, Doors, and Windows
on the RKE
To avoid setting off the alarm by
accident:
Lock the vehicle after all
occupants have exited.
Always unlock a door with the
RKE transmitter, or use the
Keyless Access system.
Unlocking the driver door with
the key will not disarm the
system or turn off the alarm.
How to Detect a Tamper
Condition
If is pressed on the RKE
transmitter and the horn chirps three
times, an alarm occurred previously
while the alarm system was armed.
If the alarm has been activated, a
message will appear on the DIC.
See Security Messages 0 159.
Inclination Sensor and
Intrusion Sensor
In addition to the standard
theft-deterrent system features, this
system may also have an,
inclination sensor and intrusion
sensor.
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