2007 GMC Yukon Owner's Manual - Page 206

The display is located near the passenger side rear window and can be seen by looking over your right shoulder. The red light in the URPA display will also be lit if the vehicle is in REVERSE (R). If the vehicle has a DIC, PARKING ASSIST OFF will display. URPA automatically turns back on each time the vehicle is started. How the System Works When the shift lever is moved into REVERSE (R), the rear display will briefly come on to let you know the display is operating correctly. URPA comes on automatically when the shift lever is moved into REVERSE (R). The system also does not work at a reverse speed greater than 5 mph (8 km/h). To remind you of this, the red light on the rear display will flash. The system can be disabled using the Driver Information Center (DIC). See DIC Operation and Displays (With DIC Buttons) on page 244 or DIC Operation and Displays (Without DIC Buttons) on page 251. The display has three color-coded lights. The URPA lights are used to provide distance and system information, along with beeps that will be heard through the speakers. URPA can be turned off by pressing the rear park aid disable button located next to the radio. The indicator will illuminate to indicate that URPA is off. 206