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#PI1098: Battery Test Cold Cranking Amperage (CCA) for Original Equipment Batteries and Testing Tips - (Nov 6, 2013) Low Voltage Battery
Subject:Battery Test Cold Cranking Amperage (CCA) for Original Equipment Batteries and TestingTipsModels: 2012-2014 GM Cars and Trucks Correct battery cold cranking amperage (CCA) ratings and type are critical for propertest results when using the EL-50313. Access to the battery specification la ...