Cadillac ATS/ATS-V Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9085354) - 2016 - crc - 7/30/15Driving and Operating 249Brake AssistThis vehicle has a brake assistfeature designed to assist the driverin stopping or decreasing vehiclespeed in emergency drivingconditions. This feature uses thestability system hydraulic brakecontrol module to supplement thepower brake system underconditions where the driver hasquickly and forcefully applied thebrake pedal in an attempt to quicklystop or slow down the vehicle. Thestability system hydraulic brakecontrol module increases brakepressure at each corner of thevehicle until the ABS activates.Minor brake pedal pulsation orpedal movement during this time isnormal and the driver shouldcontinue to apply the brake pedal asthe driving situation dictates. Thebrake assist feature willautomatically disengage when thebrake pedal is released or brakepedal pressure is quicklydecreased.Hill Start Assist (HSA)This vehicle has an HSA feature,which may be useful when thevehicle is stopped on a gradesufficient enough to activate HSA.This feature is designed to preventthe vehicle from rolling, eitherforward or rearward, during vehicledrive off. After the driver completelystops and holds the vehicle in acomplete standstill on a grade, HSAwill be automatically activated.During the transition period betweenwhen the driver releases the brakepedal and starts to accelerate todrive off on a grade, HSA holds thebraking pressure for a maximum oftwo seconds to ensure that there isno rolling. The brakes willautomatically release when theaccelerator pedal is applied withinthe two-second window. It will notactivate if the vehicle is in a drivegear and facing downhill, or if thevehicle is facing uphill and inR (Reverse).Ride Control SystemsTraction Control/Electronic StabilityControlSystem OperationThe vehicle has a Traction ControlSystem (TCS) and StabiliTrak ® , anelectronic stability control system.These systems help limit wheel slipand assist the driver in maintainingcontrol, especially on slippery roadconditions.TCS activates if it senses that anyof the drive wheels are spinning orbeginning to lose traction. When thishappens, TCS applies the brakes tothe spinning wheels and reducesengine power to limit wheel spin.StabiliTrak activates when thevehicle senses a difference betweenthe intended path and the directionthe vehicle is actually traveling.StabiliTrak selectively appliesbraking pressure to any one of the
