Principles of Operation

PRINCIPLES OF OPERATION

With the ignition switch in the RUN position, the parking aid system detects objects behind the vehicle when the vehicle is in reverse. The parking aid does this by calculating the distance to an object by the use of a radar sensor mounted in the rear bumper. The field is emitted in a 170° semicircular area around the rear of the vehicle. At or below 4.0 kmh (2.5 mph) the sensor can detect objects up to 255 cm (8 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 by the parking aid module. The speaker increases its warning tone rate as the vehicle gets closer to an obstacle. When an object is detected within 45.7 cm (18 in) of the vehicle, the warning tone becomes continuous.

The parking aid radar sensor is part of the parking aid module.

The parking aid system is disabled if any fault is detected, and the message center indicates the parking aid is disabled. The parking aid is on the international standards organization (ISO) network and can be diagnosed with a diagnostic tool.

The parking aid system is also disabled when the operator selects parking aid disable through the message center. The parking aid system remains disabled until either the ignition key is cycled from OFF to RUN, or parking aid enable is selected through the message center.