2008 GMC Acadia Owner's Manual - Page 127

Object Detection Systems {CAUTION: Ultrasonic Rear Parking Assist (URPA) If your vehicle has the Ultrasonic Rear Parking Assist (URPA) system, it helps you park easier and avoid other vehicles while in REVERSE (R). It operates at speeds less than 5 mph (8 km/h). It can determine how close objects are to the rear bumper, up to 8 feet (2.5 m) behind your vehicle. The distance sensors are located on the rear bumper. The Ultrasonic Rear Parking Assist (URPA) system does not replace driver vision. It cannot detect: • objects that are below the bumper, underneath the vehicle, or if they are too close or far from the vehicle • children, pedestrians, bicyclists, or pets. If you do not use proper care before and while backing; vehicle damage, injury, or death could occur. Even with URPA, always check behind your vehicle before backing up. While backing, be sure to look for objects and check your vehicle's mirrors. 2-45