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Home >> Lexus >> 2021 >> RC F Base >> Repair and Diagnosis >> Suspension >> Wheel Alignment >> Wheel Alignment - Service Information >> Rear Wheel Alignment >> Adjustment [09/2014 - 11/2017] >> Procedure
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Adjustment [09/2014 - 11/2017]: Procedure

  1. INSPECT TIRES 

    Refer to PROCEDURE - Step 1

  2. MEASURE VEHICLE HEIGHT 

    See step  2

  3. INSPECT CAMBER 
    NOTE:

    Inspect while the vehicle is unloaded.

    1. Install a camber-caster-kingpin gauge.
      GTY439720Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Camber-caster-kingpin Gauge
    2. Inspect the camber.

      Camber (Unloaded Vehicle)

      Camber Inclination Right-left Difference
      -1°32' +/- 0°45' (-1.53° +/- 0.75°) 0°45' (0.75°) or less

      HINT: 

      Camber is not adjustable. If the measurement is not within the specified range, inspect the suspension parts for damage and/or wear, and replace them if necessary.

  4. INSPECT TOE-IN 
    NOTE:

    Inspect while the vehicle is unloaded.

    1. Bounce the vehicle up and down at the corners to stabilize the suspension.
    2. Release the parking brake and move the shift lever to N.
    3. Push the vehicle straight ahead approximately 5 m (16.4 ft.). (Step A)
    4. Put tread center marks on the rearmost points of the rear wheels and measure the distance between the marks (dimension B).
      GTY425632Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Tread Center Mark
      *b Dimension B
      Front of the Vehicle
    5. Slowly push the vehicle straight ahead to cause the rear wheels to rotate 180°. Use the rear tire valve as a reference point.

      HINT: 

      Do not allow the wheels to rotate more than 180°. If the wheels rotate more than 180°, perform the procedure from step A again.

    6. Measure the distance between the tread center marks on the front of the rear wheels (dimension A).
      GTY427701Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Dimension A
      Front of the Vehicle

      Toe-in (Unloaded Vehicle)

      Specified Condition
      C + D: 0°15' +/- 0°10' (0.25° +/- 0.17°)
      B - A: 3.0 +/- 2.0 mm (0.118 +/- 0.0787 in.)

      HINT: 

      Measure "B - A" only when "C + D" cannot be measured.

      If the toe-in is not within the specified range, adjust it at the steering rack ends.

  5. ADJUST TOE-IN 
    1. Measure the thread lengths of the right and left steering rack ends.

      Standard Difference

      1.5 mm (0.0591 in.) or less

      GTY498853Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the rear steering rack boot clips.
    3. Loosen the rear steering tie rod assembly lock nuts.
    4. Adjust the steering rack ends if the difference in thread length between the right and left steering rack ends is not within the specified range.
      1. If the toe-in measurement is greater than the specified range (too much toe-out), extend the shorter steering rack end so that the difference in length is within the specified range.
      2. If the toe-in measurement is less than the specified range (too much toe-in), shorten the longer steering rack end so that the difference in length is within the specified range.
      3. Measure the toe-in.
    5. Turn the right and left steering rack ends by an equal amount to adjust the toe-in.

      Toe-in (Unloaded Vehicle)

      Specified Condition
      C + D: 0°15' +/- 0°10' (0.25° +/- 0.17°)
      B - A: 3.0 +/- 2.0 mm (0.118 +/- 0.0787 in.)

      HINT: 

      Perform adjustments so that the value is as close as possible to the median of the specified range.

    6. Tighten the rear steering tie rod assembly lock nuts.

      Torque: 55 N.m (561 kgf/cm, 41 ft.lbf) 

    7. Place the rear steering rack boots on the seats and install the rear steering rack boot clips.
  6. INSPECT REAR SUSPENSION 
    1. Inspect the rear suspension member sub-assembly.
      1. Measure the distance between the centers of the 2 installation bolts of the rear No. 2 suspension arm assembly LH and RH.

        Standard

        496.5 to 503.5 mm (1.63 to 1.65 ft.)

        If the distance is not as specified, replace the rear suspension member sub-assembly.

        HINT: 

        Refer to the instructions for removal and installation of the rear suspension member sub-assembly.

        Refer to REMOVAL [09/2014 - 10/2015] , or refer to REMOVAL [10/2015 - 11/2017]

        GTY498848Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Inspect the rear No. 2 suspension arm assembly.
      1. Measure the distance between the centers of the 2 installation bolts of the rear No. 2 suspension arm assembly.

        Standard

        443.6 to 444.6 mm (1.456 to 1.458 ft.)

        If the distance is not as specified, replace the rear No. 2 suspension arm assembly.

        HINT: 

        Refer to the instructions for removal and installation of the rear No. 2 suspension arm assembly.

        Refer to REMOVAL [09/2014 - 10/2015] , or refer to REMOVAL [10/2015 - 01/2023]

        GTY517793Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Inspect the rear No. 2 upper control arm assembly.
      1. Measure the distance between the centers of the 2 installation bolts of the rear No. 2 upper control arm assembly.

        Standard

        298.5 to 299.5 mm (11.76 to 11.79 in.)

        If the distance is not as specified, replace the rear No. 2 upper control arm assembly.

        HINT: 

        Refer to the instructions for removal and installation of the rear No. 2 upper control arm assembly.

        Refer to REMOVAL [09/2014 - 10/2015] , or refer to REMOVAL [10/2015 - 11/2017]

        GTY507747Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. ALIGN FRONT WHEELS FACING STRAIGHT AHEAD 
  8. PERFORM YAW RATE AND ACCELERATION SENSOR AND ROLL RATE AND VERTICAL ACCELERATION SENSOR ZERO POINT CALIBRATION 

    Refer to CALIBRATION [09/2014 - 11/2017]

  9. ADJUST LANE DEPARTURE WARNING CAMERA (w/ Lane Departure Alert System) 

    Refer to ADJUSTMENT [09/2014 - 11/2017]