Lexus NX: Inspection

INSPECTION

PROCEDURE

1. INSPECT TIRES

(a) Check the tires for wear and proper inflation pressure.

Specified Pressure (When Tire is Cool):

Tire Size

Front

kPa (kgf/cm2, psi)

Rear

kPa (kgf/cm2, psi)

225/65R17 102H

240 (2.4, 35)*1

250 (2.5, 36)*2

240 (2.4, 35)*1

250 (2.5, 36)*2

225/60R18 100H

220 (2.2, 32)*1

280 (2.9, 41)*2

220 (2.2, 32)*1

280 (2.9, 41)*2

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

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

Specified Pressure (When Tire is Cool) (for Compact Spare Tire):

Tire Size

kPa (kgf/cm2, psi)

T165/80D17 104M

420 (4.2, 60)

(1) Tire pressure adjustment method when warm:

  1. Turn the power switch off.
  2. Connect the Techstream to the DLC3.
  3. Turn the power switch on (IG).
  4. Turn the Techstream 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)

    HINT:

    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".
Chassis > Tire Pressure Monitor > Data List

Tester Display

ID 1 Tire Inflation Pressure

ID 2 Tire Inflation Pressure

ID 3 Tire Inflation Pressure

ID 4 Tire Inflation Pressure

NOTICE:

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

Click here

(b) Using a dial indicator, check the runout of the tires.

Tire runout:

1.4 mm (0.0551 in.) or less

HINT:

Remove the wheel assembly from the vehicle, and measure the wheel assembly alone.

2. ROTATE TIRES

(a) Remove the wheel assembly.

Click here

(b) Rotate the tires as shown in the illustration.

*a

Front of the Vehicle

(c) Install the wheel assembly.

Click here

3. INSPECT WHEEL BALANCE

(a) Check and adjust the off-the-car balance.

Maximum imbalance after adjustment:

8.0 g (0.0176 lb.)

NOTICE:

  • 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):

    25 mm (0.984 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.

HINT:

  • The inner side balance weights should be installed by clipping them to the rim.
  • 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 BEARING LOOSENESS

Click here

5. INSPECT FRONT AXLE HUB RUNOUT

Click here

6. INSPECT REAR AXLE HUB BEARING LOOSENESS

Click here

7. INSPECT REAR AXLE HUB RUNOUT

Click here

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