2006 Buick Lucerne Owner's Manual - Page 143

{CAUTION: Even with the Ultrasonic Rear Park Assist system, the driver must check carefully before backing up. The system does not operate above speeds of 5 mph (8 km/h). The system does not detect objects more than 8 feet (2.5 meters) behind the vehicle. Also, the system does not detect objects that are below your bumper, underneath your vehicle, or some objects very close to the vehicle. The system is not designed to detect children, pedestrians, bicyclists, or pets. So, unless you check carefully behind your vehicle while you are backing up, they could be injured or killed. Whether or not you are using rear park assist, always check carefully behind your vehicle before backing up and then watch closely as you do. The display is located near the rear window and can be seen by looking over your right shoulder. The display has three color-coded lights. The URPA lights are used to provide distance and system information, along with beeps played out the speakers. How the System Works When the shift lever is moved into REVERSE (R), the rear display will briefly illuminate 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 Controls and Displays on page 3-50. 3-19