TIRE AND WHEEL SYSTEM INSPECTION

PROCEDURE


  1. INSPECT TIRES


    1. Check the tires for wear and proper inflation pressure.

      Specified Pressure (When Tire is Cool) (for Europe)
      Tire size

      Front

      kPa (kgf/cm2, psi)

      Rear

      kPa (kgf/cm2, psi)
      285/60R18 116V 230 (2.3, 33) 230 (2.3, 33)
      285/50R20 112V 230 (2.3, 33) 230 (2.3, 33)
      260 (2.6, 38)*
      275/50R21 113V 230 (2.3, 33) 230 (2.3, 33)
      280 (2.8, 41)*

      *: For driving at over 160 km/h (100 mph)

      Specified Pressure (When Tire is Cool) (for China)
      Tire size

      Front

      kPa (kgf/cm2, psi)

      Rear

      kPa (kgf/cm2, psi)
      285/60R18 116V 240 (2.4, 35) 240 (2.4, 35)
      285/50R20 112V 240 (2.4, 35) 240 (2.4, 35)
      275/50R21 113V 240 (2.4, 35) 240 (2.4, 35)
      Specified Pressure (When Tire is Cool) (for Middle East)
      Tire size

      Front

      kPa (kgf/cm2, psi)

      Rear

      kPa (kgf/cm2, psi)
      285/60R18 116V 230 (2.3, 33) 230 (2.3, 33)
      285/50R20 112V 230 (2.3, 33) 230 (2.3, 33)
      260 (2.6, 38)*
      275/50R21 113V 230 (2.3, 33) 230 (2.3, 33)
      280 (2.8, 41)*

      *: For driving at over 160 km/h (100 mph)

      Specified Pressure (When Tire is Cool) (for Australia)
      Tire size

      Front

      kPa (kgf/cm2, psi)

      Rear

      kPa (kgf/cm2, psi)
      285/60R18 116V 230 (2.3, 33) 230 (2.3, 33)
      285/50R20 112V 230 (2.3, 33) 230 (2.3, 33)
      260 (2.6, 38)*
      275/50R21 113V 230 (2.3, 33) 230 (2.3, 33)
      280 (2.8, 41)*

      *: For driving at over 160 km/h (100 mph)


      1. Tire pressure adjustment method when warm (w/ Tire Pressure Warning System):


        1. Turn the engine switch off.

        2. Connect the GTS to the DLC3.

        3. Turn the engine switch on (IG).

        4. Turn the GTS on.

        5. Enter the following menus: Chassis / Tire Pressure Monitor / Data List.

        6. Adjust the tire pressure so that the displayed value is equal to the set pressure.

        7. Perform initialization and check that initialization completes.

          Click here

        8. Check and record the value of the Data List item "Temperature in Tire". (Ts)

        9. Check and record the ambient temperature during tire pressure adjustment. (Tm)

        10. Readjust the tire pressure according to the difference between the tire internal temperature (Ts) and the ambient temperature (Tm). (P)

          Tech Tips

          Tire internal temperature: Ts, Ambient temperature: Tm, Tire pressure readjustment value: PP = (Specified Pressure) + (Ts - Tm)

        11. Check the pressure adjustment value with the Data List item "Tire Inflation Pressure".

        Note

        Check the tire pressure warning system description for the relationship between the inflation pressure and tire pressure warning pressure.

        Click here

    2. B0018XP

      Using a dial indicator, check the tire runout.

      Tire runout
      Vertical 3.0 mm (0.118 in.) or less
      Lateral 3.0 mm (0.118 in.) or less

  2. ROTATE TIRES


    1. B001AS4E04
      Text in Illustration
      *a Front of the Vehicle

      Rotate the tires as shown in the illustration.

      Torque:
      131 N*m  { 1336 kgf*cm, 97 ft.*lbf }

  3. INSPECT WHEEL BALANCE


    1. B001AMLE01

      Check and adjust the off-the-car balance.

      Tire Size Standard Imbalance After Adjustment
      285/60R18 116V 7.0 g (0.0154 lb) or less
      285/50R20 112V 6.5 g (0.0143 lb) or less
      275/50R21 113V

      Note


      • Use a cleaning detergent to remove dirt, oil and water from the surface where the balance weight is to be adhered.

      • Do not touch the sticking surface of the tape.

      • Adhere a sticking type balance weight to the flat surface (A) shown in the illustration.

        Width (A)
        20 mm (0.787 in.)

      • Push the balance weight firmly to adhere it to the position.

      • Do not reuse the balance weight.

      • Please use the LEXUS genuine sticking type balance weight.

      Tech Tips

      If the tires vibrate even after off-the-car balance adjustment, adjust the wheel balance with on-the-car balancing as necessary.

  4. INSPECT FRONT AXLE HUB

    Click here

  5. INSPECT REAR AXLE SHAFT

    Click here