Driving and operating 137Object detection systemsParking assistThe parking assist makes parkingeasier by measuring the distancebetween the vehicle and obstacles,and giving acoustic signals. It is thedriver, however, who bears fullresponsibility for the parkingmanoeuvre.The system consists of four ultrasonicparking sensors in the rear bumper. Ifthe vehicle is equipped with a frontparking assist the system consists offour additional ultrasonic parkingsensors in the front bumper.Control indicator r 3 84.ActivationWhen reverse gear is engaged, thesystem is activated automatically.The front parking assist can also beactivated at a low speed by pressingthe r button.An illuminated LED in the parkingassist button indicates that thesystem is ready to operate.An obstacle is indicated by a buzzingsound. The interval between thesounds becomes shorter as thevehicle gets closer to the obstacle.When the distance is less than 1 ft,the buzzing is continuous.DeactivationDeactivate the system by pressingthe r button.The LED in the button will go out andPark Assist Off will be displayed in theDriver Information Center.The system is deactivatedautomatically at a certain speed.FaultIn the event of a fault in the system,r illuminates and a message isdisplayed in the Driver InformationCenter.Additionally, r illuminates ora vehicle message is displayed in theDriver Information Center ifa malfunction of the system due totemporary conditions like snowcovered sensors is detected.Vehicle messages 3 91.
