2010 GMC SIERRA alarm

Initial Drive Information
This section provides a brief overview about some of
the important features that may or may not be on your
specific vehicle.
For more detailed information, refer to each of the
features which can be found later in this owner manual.
Remote Keyless Entry (RKE) System
The RKE transmitter is used to remotely lock and
unlock the doors from up to 60 m (195 feet) away from
the vehicle.
PressKto unlock the
driver door. Press
K
again within
three seconds to unlock
all remaining doors.
Press
Qto lock all doors.
Lock and unlock feedback can be personalized.
Press
Land release to locate the vehicle.
Press
Land hold for more than two seconds to sound
the panic alarm.
Press
Lagain to cancel the panic alarm.
See Keys
on page 3‑3andRemote Keyless Entry
(RKE) System Operation on page 3‑4.
1-6

/(Remote Vehicle Start):For vehicles with this
feature, press /to start the engine from outside the
vehicle using the RKE transmitter. See Remote Vehicle
Start
on page 3‑7for additional information.
Q(Lock): Press to lock all the doors.
If enabled through the Driver Information Center (DIC),
the turn signal lamps flash once to indicate locking has
occurred. If enabled through the DIC, the horn chirps
when
Qis pressed again within three seconds.
See DIC Vehicle Customization (With DIC Buttons)
on
page 4‑75for additional information.
Pressing
Qarms the content theft‐deterrent system.
See Content Theft-Deterrent on page 3‑17.
K(Unlock): Press once to unlock only the driver door.
If
Kis pressed again within three seconds, all
remaining doors unlock. The interior lamps may come
on and stay on for 20 seconds or until the ignition is
turned on. If enabled through the DIC, the turn signal lamps flash
twice to indicate unlocking has occurred. See
DIC
Vehicle Customization (With DIC Buttons)
on
page 4‑75. If enabled through the DIC, the exterior
lights may turn on. See “APPROACH LIGHTING” under
DIC Vehicle Customization (With DIC Buttons)
on
page 4‑75.
Pressing
Kon the RKE transmitter disarms the content
theft‐deterrent system. See Content Theft-Deterrent
on
page 3‑17.
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
Lfor 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
Lis pressed again. The ignition must be
in LOCK/OFF for the panic alarm to work.
3-5

Sun Visors
Pull the sun visor down to block glare. Swing the sun
visor to the side to cover the side window.
The passenger's side sun visor may have a vanity
mirror.
Theft-Deterrent Systems
Vehicle theft is big business, especially in some cities.
This vehicle has theft-deterrent features, however, they
do not make it impossible to steal.
Content Theft-Deterrent
Your vehicle may have a content theft-deterrent alarm
system.
This is the security light.To arm the theft-deterrent system:
1. Open the door.
2. Lock the door with the Remote Keyless Entry (RKE) transmitter. The security light should come
on and flash.
If the delayed locking feature is active, the alarm
will not be activated until all doors are closed and
the security light goes off.
3. Close all doors. The security light will stop flashing and go off after approximately 30 seconds. The
content theft deterrent alarm is not armed until the
security light goes off.
If a locked driver door is opened without using the RKE
transmitter, a ten second pre-alarm will occur. The horn
will chirp and the lights will flash. If the key is not placed
in the ignition and turned to START or the door is not
unlocked by pressing the unlock button on the RKE
transmitter during the ten second pre-alarm, the alarm
will go off. Your vehicle's headlamps will flash and the
horn will sound for about 30 seconds, then will turn off
to save the battery power.
3-17

The theft-deterrent system will not activate if the doors
are locked with the vehicle's key or the manual door
lock. It activates only if you use the power door lock
switch with the door open or the RKE transmitter.
You should also remember that you can start your
vehicle with the correct ignition key if the alarm has
been set off.
To avoid setting off the alarm by accident:
.If you do not want to activate the theft-deterrent
system, the vehicle should be locked with the door
key after the doors are closed.
.Always unlock a door with the RKE transmitter.
Unlocking a door any other way will set off the
alarm if the system has been armed.
If you set off the alarm by accident, press unlock on the
RKE transmitter or place the key in the ignition and turn
it to START to turn it off.
Testing the Alarm
To test the alarm: 1. From inside the vehicle, lower the driver's window and open the driver's door.
2. Activate the system by locking the doors with the RKE transmitter.
3. Get out of the vehicle, close the door and wait for the security light to go out.
4. Then reach in through the window, unlock the door with the manual door lock and open the door.
This should set off the alarm.
If the alarm does not sound when it should but the
headlamps flash, check to see if the horn works.
The horn fuse may be blown. To replace the fuse,
see Fuses and Circuit Breakers on page 6‑118.
If the alarm does not sound or the headlamps do not
flash, see your dealer/retailer for service.
3-18