2012 Chevrolet Traverse Owner's Manual - Page 282

9-34 Driving and Operating . PARK ASST BLOCKED SEE OWNERS MANUAL: This message can occur under the following conditions: . The bumper is damaged. Take the vehicle to your dealer to repair the system. Other conditions, such as vibrations from a jackhammer or the compression of air brakes on a very large truck, are affecting system performance. WARNING (Continued) Do not back the vehicle using only the RVC screen or by using the screen during longer, higher speed backing maneuvers, or where there could be cross-traffic. Perceived distances may be different from actual distances. Failure to use proper care before backing may result in injury, death, or vehicle damage. Always check before backing by checking behind and around the vehicle. . The ultrasonic sensors are not clean. Keep the vehicle's rear bumper free of mud, dirt, snow, ice, and slush. For cleaning instructions, see Exterior Care on page 10‑83. The park assist sensors are covered by frost or ice. Frost or ice can form around and behind the sensors and may not always be seen; this can occur after washing the vehicle in cold weather. The message may not clear until the frost or ice has melted. A trailer was attached to the vehicle, or an object was hanging out of the liftgate during the last drive cycle. Once the object is removed, URPA will return to normal operation. A tow bar is attached to the vehicle. . Rear Vision Camera (RVC) The vehicle may have a rear vision camera system. Read this entire section before using it. { WARNING The RVC system does not display pedestrians, bicyclists, animals, or any other object located outside the cameras field of view, below the bumper, or under the vehicle. (Continued) Vehicles without Navigation System The rear vision camera system is designed to help the driver when backing up by displaying a view of the area behind the vehicle. When the key is in the ON/RUN position and the driver shifts the vehicle into R (Reverse), the video image automatically appears on the inside . .