Principles of Operation (How Does It Work?)

PRINCIPLES OF OPERATION

NOTE: The liftgate must be closed for correct operation of the parking aid system.

The parking aid system detects objects behind the vehicle when the key is in RUN and REVERSE is selected. The parking aid does this by calculating the distance to an object, using four ultrasonic sensors mounted in the rear bumper. The ultrasonic field is emitted in a semicircular area around the rear of the vehicle. The sensors can detect objects approximately 1.8 m (5.9 ft) to the rear of the vehicle, 50 cm (1.6 ft) to the rear side of the vehicle, and 16 cm (6 in) above ground. A 750 Hz variable warning tone is generated from the speaker located behind the right quarter trim panel. The speaker increases its warning tone rate as the vehicle gets closer to an obstacle. When an object is detected within 25 cm (10 in) of the sensors, the warning tone becomes continuous.

The parking aid system is enabled when the key is in RUN and REVERSE is selected. The parking aid disabled indicator will illuminate for three seconds when the ignition is turned to RUN. The system can be disabled by pressing the parking aid switch on the instrument panel. The parking aid system will indicate it is disabled by illuminating the parking aid disabled indicator. The system will always enable when the ignition is transitioned to RUN and entry into REVERSE.

The parking aid system will be disabled if a fault is detected in any of the four sensors, the parking aid speaker or the parking aid module. This will be indicated by the parking aid disabled indicator being illuminated. The parking aid is on the International Standards Organization (ISO) 9141 network and can be diagnosed with a diagnostic tool.