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Reverse Automatic Braking (RAB)

  1. Check that the RAB system is activated and deactivated correctly.
    1. Start the engine and let the engine idle for 6 seconds or more, and then shift the select lever to "R" range.
    2. Check that "RAB" and "RAB OFF" turn off in the combination meter.
    3. Check that the RAB warning screen is displayed on the MFD and "RAB" and "P Δ" indicators illuminate in green.
    4. Select "RAB" displayed on the screen, and check that "RAB OFF" is displayed in the combination meter when "RAB OFF/ON" is switched and "RAB OFF" is conducted.
    5. Select "P Δ" displayed on the screen, and check that "P OFF/ON" can be switched.
  2. Check the sonar sensor installed on the rear bumper for parts missing, dirt, scratch, foreign objects, etc.
    • The sensor surface must not stick out or sink in at 0.5 mm or more from the rear bumper surface. If the sensor surface largely sinks in, the sensor may not be engaged in the holder behind the bumper. In this case, check the installation condition of the sensor after removing the bumper.
    • Make sure that there are no foreign objects (tape, stickers, dust or dirt) on the sonar sensor surface.

      If there is a layer of foreign objects on the sensor surface, remove completely so that no residue remains.

Fig 1: Identifying Sonar Sensor
G11263246Courtesy of SUBARU OF AMERICA, INC.
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