How The System Alarm Is Activated; Disarming The System; How To Turn Off The System Alarm; How To Detect A Tamper Condition - Chevrolet 2009 Cobalt Owner's Manual

The security light, located on the instrument panel
cluster, will turn on to indicate that arming has been
initiated. Once the system is armed, the security light
will flash once every three seconds.
If the security light is flashing twice per second, this
means that a door is open.
If you do not want to arm the system, you may lock the
car with the manual lock knobs, or the power door
lock switch, if equipped, on the doors.

Disarming the System

You can disarm the system by doing any one of the
following:
•
Press the remote keyless entry transmitter unlock
button.
•
Turn the ignition on.
If the system is armed and the trunk is opened using
the trunk release button on the transmitter, the system
will temporarily disarm itself and re-arm when the
trunk has been closed. This allows you to exit the
vehicle, lock the doors using the transmitter, and open
the trunk using the transmitter without having to
disarm and re-arm the system.
Once the system is disarmed, the security light will stop
flashing.

How the System Alarm is Activated

If the system is armed, it can be activated by either:
•
Opening the driver's door or trunk. This will cause
a ten second pre-alarm chirp followed by a
thirty second full alarm of horn and lights.
•
Opening any other door. This will immediately cause
a full alarm of horn and lights for thirty seconds.
When an alarm event has finished, the system will
re-arm itself automatically.

How to Turn Off the System Alarm

To turn off the system alarm, do one of the following:
•
Press the lock button on the remote keyless
entry transmitter. The system will then re-arm itself.
•
Press the unlock button on the remote keyless entry
transmitter. This will also disarm the system.
•
Insert the key in the ignition and turn it on. This will
also disarm the system.

How to Detect a Tamper Condition

If you hear three chirps when you press the unlock,
lock, or trunk release buttons on the remote keyless
transmitter, it means that the content theft security
system alarm was previously activated.
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