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Home >> Subaru >> 2022 >> Forester Base >> Repair and Diagnosis >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Blind Spot Detection/Rear Cross Traffic Alert System >> Radar Sensor >> Adjustment >> Radar Axis Adjustment

Radar Axis Adjustment

CAUTION:
  • Perform the radar axis adjustment without passengers.
  • The procedure for the radar sensor LH (master) side is only shown here. However the procedure for the radar sensor RH (slave) can also be done in the same way as the radar sensor LH (master).
  1. Before adjustment, check the following items.
    1. The workplace is flat and level.
    2. The inflation pressure of tires is correct.
    3. The vehicle does not have load. (Except for the standard equipment tools and spare tire)
    4. Check the front and back surfaces around the radar sensor and the bumper face rear for any scratches or other type of deformation. Ref. to BLIND SPOT DETECTION/REAR CROSS TRAFFIC ALERT (DIAGNOSTICS)>GENERAL DESCRIPTION>CAUTION .
  2. Park the vehicle while securing approximately 5 m (16.41 ft) square area behind the vehicle.
    CAUTION:
    • No metallic objects around the vehicle and on the floor in the area.
    • Do not let in objects other than the radar reflector (ST), persons and metallic objects inside the area.
    G14418414Courtesy of SUBARU OF AMERICA, INC.
    NOTE: The illustration shows the secured area for adjusting the radar axis on the master side.
  3. Prepare the Subaru Select Monitor, measure, leveling line, plumb bob, RADAR REFLECTOR (ST), and stand or tripod for fixing the RADAR REFLECTOR.

    Preparation tool: 

    ST: RADAR REFLECTOR (87699AL00A)

  4. Set up the radar reflector.
    NOTE: The following procedure explains the method of setting the radar reflector so that the distance between radar reflector and radar sensor is 1, 500 mm (4.92 ft) and the angle of the radar is 50°.
    1. Suspend the plumb bob from the center of the front hole cap, and mark the position where the plumb bob touches the ground. (Point A)
      G14418415Courtesy of SUBARU OF AMERICA, INC.
      NOTE: Stick the packing tape etc. on the floor, then make a marking on the tape.
    2. Suspend the plumb bob from the center of the bumper face rear mounting clip, and mark the position where the plumb bob touches the ground. (Point B)
      G14418416Courtesy of SUBARU OF AMERICA, INC.
      NOTE: Stick the packing tape etc. on the floor, then make a marking on the tape.
    3. Stretch a leveling line to draw an arc with the marked point A as a pivot.
    4. Stretch a leveling line to draw an arc with the marked point B as a pivot.
    5. Set up the radar reflector at the cross point.
      CAUTION: When setting up the radar reflector, adjust the height so that the center of the pyramid points at the radar sensor as shown in the figure.
      G14418417Courtesy of SUBARU OF AMERICA, INC.
    G14418418Courtesy of SUBARU OF AMERICA, INC.
  5. Perform radar axis adjustment.
    1. Turn the ignition switch to ON and wait for 10 seconds.
    2. Using the Subaru Select Monitor, select [RADAR Alignment] from the work support item list of [Blind Spot Detection/Rear Cross Traffic Alert(RH)] or [Blind Spot Detection/Rear Cross Traffic Alert(LH)]. Ref. to COMMON (DIAGNOSTICS)>WORK SUPPORT>OPERATION .
    3. Follow the messages displayed on the Subaru Select Monitor screen when working.
      NOTE: Deviation of radar axis direction is indicated by + (plus) or - (minus).
      G14418419Courtesy of SUBARU OF AMERICA, INC.
    4. If the result is out of permissive range, it is assumed that the radar reflector position may be incorrect or the radar bracket or its installation location on the vehicle may be deformed. Check the set position of the radar reflector, radar bracket and other attachment, and perform the radar axis adjustment again.
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