Cadillac XT4 Owner Manual (GMNA-Localizing-MidEast-13527545) - 2020 -CRC - 9/16/19200 DRIVING AND OPERATINGDo not use ACC when driving on steephills or when towing a trailer. ACC willnot detect a vehicle in the lane whiledriving on steep hills. The driver willoften need to take over accelerationand braking on steep hills, especiallywhen towing a trailer. If the brakes areapplied, the ACC disengages.Disengaging ACCThere are three ways todisengage ACC:. Step lightly on the brake pedal.. Press *.. Press J.Erasing Speed MemoryThe cruise control set speed is erasedfrom memory if J is pressed or ifthe ignition is turned off.Cleaning the Sensing SystemThe camera sensor on the windshieldbehind the rearview mirror and theradar sensors on the front of thevehicle can become blocked by snow,ice, dirt, or mud. These areas need tobe cleaned for ACC to operateproperly.For cleaning instructions, see“Washing the Vehicle” under ExteriorCare 0 280.System operation may also be limitedunder snow, heavy rain, or road sprayconditions.Driver AssistanceSystemsThis vehicle may have features thatwork together to help avoid crashes orreduce crash damage while driving,backing, and parking. Read this entiresection before using these systems.{ WarningDo not rely on the DriverAssistance Systems. These systemsdo not replace the need for payingattention and driving safely. Youmay not hear or feel alerts orwarnings provided by thesesystems. Failure to use proper carewhen driving may result in injury,death, or vehicle damage. SeeDefensive Driving 0 154.Under many conditions, thesesystems will not:. Detect children, pedestrians,bicyclists, or animals.(Continued)