2001 Cadillac DeVille Owner's Manual - Page 188

Ultrasonic Rear Parking Assist (URPA) (Option) Ultrasonic Rear Parking Assist can help you to determine how close an object is to your rear bumper within a given area, making parking easier. The URPA display is located inside the vehicle, above the rear window. It has three color-coded lights that can be seen through the rearview mirror or by turning around. How the System Works URPA comes on automatically when the shift lever is moved into REVERSE (R) and the vehicle speed is less than 3 mph (5 km/h). When the system comes on, the three lights on the display will illuminate to let you know that the system is working. URPA senses how close your vehicle is to an object. The distance is determined by the four ultrasonic sensors located on the rear bumper. When shifting into REVERSE (R) and an object is detected, one of the following will occur: 2-118