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-OnsFlexible Fuel Sensor Replacement Engine Control
Flexible Fuel Sensor ReplacementCalloutComponent NamePreliminary ProcedureRelieve the fuel system pressure. Refer toFuel Pressure ReliefRaise and support the vehicle. Refer toLifting and Jacking the Vehicle.1Plastic RetainersProcedureSqueeze the plastic retainers from the back in order to release.2F ...