Black plate (45,1)Cadillac Escalade/Escalade ESV Owner Manual - 2013 - CRC 2nd Edition - 10/9/12Driving and Operating 9-45PARKING ASSIST OFF: Thismessage occurs if the driverdisables the system or if the vehicleis driven above 8 km/h (5 mph) inR (Reverse).PARKING ASSIST BLOCKED SEEOWNERS MANUAL: Thismessage can occur under thefollowing conditions:. The ultrasonic sensors are notclean. Keep the vehicle's rearbumper free of mud, dirt, snow,ice, slush, and frost. Themessage may not clear untilfrost or ice has melted all aroundand inside the sensor.. A trailer is attached to thevehicle, or a bicycle or an objectwas hanging out of the liftgateduring the current or last drivecycle. URPA will return to normaloperation after it is determinedthe object is removed. Thiscould take a few drive cycles.. A tow bar is attached to thevehicle.Other conditions may affect systemperformance, such as vibrationsfrom a jackhammer or thecompression of air brakes on a verylarge truck.Side Blind ZoneAlert (SBZA)If available, the Side Blind ZoneAlert system is a lane changing aidthat assists drivers with avoidingcrashes that occur with vehicles inthe side blind zones.{ WARNINGSBZA does not detect vehiclesrapidly approaching outside of theside blind zones, pedestrians,bicyclists, or animals. Failure touse proper care when changinglanes may result in injury, death,or vehicle damage. Beforemaking a lane change, alwayscheck mirrors, glance over yourshoulder, and use the turnsignals.