Operation CHARM: Car repair manuals for everyone.
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Armed Mode

Lamp status: Flashes slowly
When the content theft deterrent system enters the ARMED mode, the BCM performs the following functions:
^ For remote activation verification in mode 3 or mode 4, the BCM sounds the horn for 23-27 ms. Refer to Keyless Entry for more information about this mode.
^ For remote activation verification in mode 2, mode 3 or mode 4, the BCM flashes the exterior lights once after sounding the horn.

The content theft deterrent system stays in the armed mode until one of the following conditions exists:
^ Press LOCK on the keyless entry transmitter. The system goes into the STAND BY mode.
^ Unlock the doors using the left front, right front, or liftgate door key cylinder when the arm/disarm is in mode 1 or mode 3. The system goes into the STAND BY mode.
^ Open a vehicle door. The system goes into the ALARM mode.
^ Tampering with the rear compartment lock occurs. The system goes into the WARNING mode.
^ Trigger the shock sensor when the arm/disarm is in mode 1 or mode 3. The system goes into the ALARM mode.
^ Turn the ignition switch from the LOCK position to the ACC or RUN position. The system goes into the alarm mode.