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-OnsUse of Room Temperature Vulcanizing (RTV) and Anaerobic Sealant
Sealant TypesNote:The correct sealant and amount of sealant must be used in theproper location to prevent oil leaks, coolant leaks, or theloosening of the fasteners. DO NOT interchange the sealants. Useonly the sealant, or equivalent, as specified in the serviceprocedure.The following 2-major types ...