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#PI1067: Malfunction Indicator Lamp (MIL) Light On, Reduced Power Mode, DTC Set, Poor Performance/Shifts - (Sep 25, 2013)
Subject:Malfunction Indicator Lamp (MIL) Light On, Reduced Power Mode, DTC Set, Poor Performance/ShiftsModels: 2013-2014 Chevrolet Equinox2013-2014 GMC TerrainEquipped with 3.6L Engine (RPO LFX)Condition/ConcernIn rare cases, some customers may comment that the malfunction indicator lamp is on,poor ...