Ford Focus Owners Manual: Principle of operation
WARNING:
The parking aid does not relieve you of your responsibility to drive with due care and attention.
CAUTIONS:
Vehicles fitted with a trailer tow module not approved by us may not correctly detect obstacles.
The sensors may not detect objects in heavy rain or other conditions that cause disruptive reflections.
The sensors may not detect objects with surfaces that absorb ultrasonic waves.
The parking aid does not detect obstacles moving away from the vehicle. They will only be detected shortly after they start to move towards the vehicle again.
Take particular care when reversing with a tow ball arm or rear fitted accessories e.g. a bicycle carrier, as the rear parking aid will only indicate the distance from the bumper to the obstacle.
If you use a high pressure spray to wash your vehicle, only spray the sensors briefly from a distance not less than 20 centimetres (8 inches).
Note: On vehicles fitted with a tow ball arm, the parking aid is deactivated automatically when any trailer lamps (or lighting boards) are connected to the 13-pin socket via a trailer tow module we have approved.
Note: Keep the sensors free from dirt, ice and snow. Do not clean with sharp objects.
Note: The parking aid may emit false tones if it detects a signal using the same frequency as the sensors or if the vehicle is fully laden.
Note: The outer sensors may detect the side walls of a garage. If the distance between the outer sensor and the side wall remains constant for three seconds, the tone will switch off. As you continue, the inner sensors will detect rearward objects.
Parking aid
...
Using the parking aid
WARNING:
The parking aid does not relieve you
of your responsibility to drive with
due care and attention.
The parking aid is automatically activated
when you select reverse gear with the
ig ...
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