This vehicle has an anti-theft alarm system.

The indicator light, on the instrument panel near the windshield, indicates the status of the system: Off : Alarm system is disarmed.
On Solid : Vehicle is secured during the delay to arm the system.
Fast Flash : Vehicle is unsecured.
A door, the hood, or the liftgate is open.
Slow Flash : Alarm system is armed.
Vehicle Security
Arming the Alarm System#09-03-16-002B: Dealership Service Consultant Procedure as Vehicle Comes into Service Drive for Tire Pressure Monitor (TPM) System Message, Light and...
Subject:Dealership Service Consultant Procedure as Vehicle Comes into Service Drive for TirePressure Monitor (TPM) System Message, Light and Customer InformationModels: 2006-2014 GM Passenger Cars and Light Duty TrucksAttention: The information found in this bulletin is to be used as a dealership ...