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 SystemCoolant Heater Replacement (LFX) Engine Cooling
Coolant Heater ReplacementCalloutComponent NamePreliminary ProcedureRaise and support the vehicle. Refer toLifting and Jacking the Vehicle.1Coolant HeaterTip:Be careful not to score inner surface of the engine blockwhen removing coolant heater. ...