Cadillac XT4 Owner Manual (GMNA-Localizing-MidEast-13527545) - 2020 -CRC - 9/16/19INSTRUMENTS AND CONTROLS 101rear window and either stop or returnto your preset speed. For more washercycles, push and hold the lever.The rear window wiper/washer willnot operate if the liftgate is open orajar. If the liftgate is opened while therear wiper is on, the wiper returns tothe parked position and stops.Rear Wiper Arm AssemblyProtectionWhen using an automatic car wash,move the rear wiper control to OFF todisable the rear wiper. In somevehicles, if the transmission is inN (Neutral) and the vehicle speed isvery slow, the rear wiper willautomatically park under the rearspoiler.The wiper operations return to normalwhen the transmission is no longer inN (Neutral) or the vehicle speed hasincreased.Auto Wipe in Reverse GearIf the rear wiper control is off, the rearwiper will automatically operatecontinuously when the transmission isin R (Reverse), and the frontwindshield wiper is performing low orhigh speed wipes. If the rear wipercontrol is off, the transmission is inR (Reverse), and the front windshieldwiper is performing INT wipes, thenthe rear wiper automatically performsINT wipes.This feature can be turned on or off.See Vehicle Personalization 0 129.The windshield washer reservoir isused for the windshield, rear window,and Rear Camera Mirror, if equipped.See Rear Camera Mirror 0 31. Checkthe fluid level in the reservoir if eitherwasher is not working. See WasherFluid 0 239.Rear Camera WasherIf equipped, push the windshieldwiper lever forward to spray washerfluid on the rear camera lens. Thelever returns to its starting positionwhen released. See Rear Camera Mirror0 31.CompassThe vehicle may have a compassdisplay on the Driver InformationCenter (DIC). The compass receives itsheading and other information fromthe Global Positioning System (GPS)antenna, StabiliTrak/ElectronicStability Control (ESC), and vehiclespeed information.The compass system is designed tooperate for a certain number of milesor degrees of turn before needing asignal from the GPS satellites. Whenthe compass display shows CAL, drivethe vehicle for a short distance in anopen area where it can receive a GPSsignal. The compass system willautomatically determine when a GPSsignal is restored and provide aheading again.