The vehicle has a Trailer Sway Control (TSC) feature as part of the StabiliTrak system. If TSC detects that the trailer is swaying, the vehicle's brakes are automatically applied.

When TSC is applying the brakes, the TCS/StabiliTrak indicator light flashes to notify the driver to reduce speed. If the trailer continues to sway, StabiliTrak will reduce engine torque to help slow the vehicle.
TSC will not function if StabiliTrak is turned off. See Traction Control/ Electronic Stability Control.
Towing Equipment
Conversions and Add-OnsInstrument Panel Outer Air Outlet Replacement (Terrain) Dashboard Assembly
Instrument Panel Outer Air Outlet ReplacementCalloutComponent Name1Instrument Panel Outer Air Outlet (Left)ProcedureUse a flat bladed plastic trim tool in order to release theinstrument panel outer air outlet from the instrument panelassembly.2Instrument Panel Outer Air Outlet (Right)ProcedureUse a ...