DESCRIPTION & OPERATION
Parking assistant system is automatically activated when reverse gear is engaged. System uses 4 ultrasonic sensors evenly spaced along rear bumper centerline to detect objects at varying distances behind vehicle. Outer sensors (2) have a range of 60 cm approximately, inner sensors (2) have a range of 150 cm approximately.
Note. Sensors are NOT activated if vehicle rolls backward without reverse gear engaged.
System emits a single short tone when reverse gear is engaged to confirm system operation. Detected objects are indicated by intermittent tones. When object is less than 1 foot away from vehicle, system emits a continuous tone. Tone will stop if vehicle motion is stopped, and will sound again if motion resumes. Objects very low to the ground (i.e., below bottom bumper contour) may not be detected by sensors. Parking sensors cannot detect sound-absorbing objects (i.e., powder snow), sound-reflective objects (i.e., glass or flat painted surfaces) or very thin objects. Other ultrasound sources like pneumatic brakes of other vehicles or jackhammers may interfere with sensors.
Indication of system fault is through warning tones. If a system fault is present, the single tone emitted after reverse gear is engaged will be followed by a continuous tone of much lower pitch. Dirty or icy sensors will also indicate a fault by emitting a continuous tone of the same pitch as the single activation tone. For cleaning instructions, see CLEANING ULTRASONIC SENSORS under ON-VEHICLE SERVICE.