Locks

Yes when you arm the system it let's you know it's armed here is a description of it.

SECURITY Indicator
The SECURITY indicator on the instrument cluster is controlled by both the VTD system and the CTD system. The SECURITY indicator is an LED on the instrument cluster which illuminates the word THEFT. The SECURITY indicator is controlled by the body control module grounding the security indicator control circuit.

* The VTD system commands the instrument cluster to control the indicator only when the ignition switch is ON. The VTD system uses the indicator as a malfunction indicator.
* The CTD system commands the instrument cluster to control the indicator only when the ignition switch is OFF. The CTD system uses the indicator to identify system status.