Subaru 2007 B-9 Tribeca Technicians Reference Booklet page 24

2007 New Model Update
NOTE: ALWAYS USE EXTREME CAUTION IN "ZONE 2" AND ALWAYS STOP WHEN A SOLID
WARNING TONE INDICATING "ZONE 3" IS HEARD. IF A MOVING OBJECT ENTERS
"ZONE 3", THE SYSTEM IS DESIGNED TO "LOCK" ONTO IT, MAKING THE "ZONE 3"
TONE CONSTANT, UNTIL THE OBJECT MOVES TO A SAFE DISTANCE FROM "ZONE
3", (I.E., THE OBJECT MOVES 2 FEET OUTSIDE OF THE "ZONE 3" DETECTION AREA).
Situations Where Obstacles May Not be Detected or Which May Provide Momentary
Detection Signals
The Back-Up Sensor System utilizes ultrasonic technology to locate objects in the vehicle's path
when driving in reverse. Under some circumstances, however, an object may not be detected, so
always exercise extreme caution when driving in reverse. Look behind the vehicle and maintain
speeds of less than 5 MPH. Inclement weather may reduce performance or cause intermittent
detection of rain or snow. "
"The back up sensors must be kept clean for optimum performance. Dirt, snow or ice accumulations
may cause reduced performance."
A small object, under your bumper or too close to the vehicle may not be detected due to the angle
of the sensor's signal.
When driving in reverse down a steep slope or driveway, gravel and/or the road surface may cause
momentary detection signals due to the sensor's following the sloping angle of the vehicle.
In general, reversing at an angle towards a partial wall or other large flat surface may refract ultrasonic
signals, causing the object not to be detected. Driving in reverse on loose gravel, rough surfaces
and potholes may produce intermittent detection due to signal bouncing off of refractive surfaces
behind the vehicle. Entering or exiting a garage may result in a brief detection signal as the vehicle
passes through the doorway.
If driving in reverse towards a 90-degree angle, such as a corner of a wall or pillar, sensor detection
pattern will refract until the vehicle is close enough to receive a signal back from corners. In such
situations the vehicle could be very close to an object before it is detected.
Adjusting the Back-Up Sensor System Speaker
The Back-Up Sensor System comes equipped with an adjustable warning indication speaker located
in the rear passenger side of the vehicle. (On page 23)
The speaker has three controllable audio settings:
1) HI Volume setting: For individuals desiring a loud warning tone.
2) LOW Volume Setting: For individuals desiring a soft warning tone.
3) OFF: The speaker should be turned off when the vehicle is towing with a trailer hitch,
a ball mount is installed, or when a hitch-mounted Bike Carrier is used. In all other
instances, the speaker should remain on.
Adjusting the volume setting is easy. A fingertip slide switch is accessible and used to select the
desired setting.
This system is port or dealer installed. Power for the back up sensor system is supplied by the
power for the reverse light circuit.
* Refer to STIS (Subaru Technical Infromation System)
2007 Subaru B9 Tribeca Page 24
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*** New Feature
June 2006