Back-Up Sensor System; Understanding Your Back-Up Sensor System's Audible Warning Zones - Subaru 2007 B-9 Tribeca Technicians Reference Booklet

2007 New Model Update

Back-up Sensor System

This Back-Up Sensor System is strictly a driver assistance device, and should not be relied upon
as a substitute for safe driving practices. When driving in reverse always follow recommended safe
driving guidelines from your state or local Department of Motor Vehicles regarding the engagement
of reverse gear. To help prevent accidents, always use caution when driving in reverse by visually
checking to ensure that your path is clear . When applicable, that may include conducting a visual
check before you enter your vehicle. While driving in reverse, keep speeds under 5 MPH.
NOTE: THIS SYSTEM CAN BE INSTALLED ON 2006 MODEL YEAR VEHICLES.

Understanding Your Back-Up Sensor System's Audible Warning Zones

The Back-Up Sensor System emits and receives ultrasonic signals that are projected from the
sensors mounted in the vehicle's rear bumper. As the signals reflect off of objects in the detection
field, an audible warning tone will be heard inside the vehicle.
This warning tone alerts the driver to obstacles in the vehicle's path.
When the gearshift is put into reverse, the system will make one short 'beep' to verify system
functionality. This alert serves multiple purposes:
1) Notification that the system is active and is scanning for objects in the detection field.
2) As a reminder that the vehicle is in reverse gear.
3) As an indication that the Back-Up Sensor System has performed a self-check.
NOTE: IF ADDITIONAL "QUICK BEEPS" ARE HEARD THE BACK-UP SENSOR SYSTEM MAY
REQUIRE DIAGNOSIS. IF WARNING TONES CONTINUE AFTER REVERSE IS
INITIALLY SELECTED, CHECK FOR OBSTACLES BEHIND THE VEHICLE.
The Back-Up Sensor System reverse scanning system will detect objects in three distinct "Zones",
which correspond to the vehicle's distance from an object. When reversing towards an object, the
Back-Up Sensor System audible alerts are as follows:
"Zone 1" - At a distance of approximately 48 to 72 inches the Back-Up Sensor System will begin to
beep slowly indicating an obstacle is in the vehicle's path.
"Zone 2" - At a distance of approximately 24 to 48 inches, the Back-Up Sensor System will beep
three times per second, indicating that an obstacle is in the vehicle's path.
"Zone 3" – If an object is within 24 inches of the vehicle's bumper a continuous warning tone will be
heard.
* Refer to STIS (Subaru Technical Infromation System)
June 2006
(916)
(Speaker located on right rear trim panel)
*** New Feature
2007 Subaru B9 Tribeca Page 23