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-OnsControl Solenoid Valve and Transmission Control Module Assembly Replacement Automatic Transmission Unit
Removal ProcedureRemove the transmission control valve body cover. Refer toControl Valve Body Cover Replacement.Disconnect the input speed sensor electrical connector-(1).Disconnect the output speed sensor electrical connector-(2).Disconnect the shift position switch electrical connector-(3).Remove ...