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Home >> Tesla >> 2019 >> Model X Performance >> Repair and Diagnosis >> Suspension >> Wheel Alignment >> Suspension -- Model X >> Adjustment >> Four Wheel Alignment Check >> Preparation
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Four Wheel Alignment Check: Preparation

  1. Ensure that the following are within Tesla-approved specifications before continuing to the next step of this procedure:
    • Wheel offset
    • Tire size (refer to the tire and loading information label)
    • Tire wear
    • TIRE PRESSURE
    CAUTION: Do not perform this procedure on a vehicle that has non-OEM wheels, incorrect wheel offset, tire(s) with less than 4/32 in (3 mm) tread, or incorrect tire pressure.
  2. Connect a laptop to the diagnostic port of the vehicle, and then use Toolbox 3 to locally connect to the vehicle. See Toolbox 3 (Connect And Disconnect) .
    NOTE: Use an extension cable so that the laptop can be accessed from outside of the vehicle during this procedure.
  3. If the fasteners that secure the steering rack, steering column, intermediate shaft, tie rods, or front subframe have been loosened or removed, perform a Lock To Lock-Angle test. See LOCK TO LOCK-ANGLE TEST .
  4. Turn off the vehicle climate control system.
  5. Ensure that all pins are inserted into the slip plates and turn plates of the alignment rack.
  6. Set the suspension to "Standard".
  7. Drive onto the alignment rack, and stop the vehicle 1-2 ft (300-600 mm) before the turn plates so that the rolling compensation can be performed in a later step.
  8. Shift into Park.
    NOTE: Do not change the suspension height yet.
  9. Prepare the touchscreen to display steering angle.
    1. Enable Service Mode +. See SERVICE MODE PLUS .
    2. On the vehicle touchscreen, touch CAN Viewer > CH > STW_ANGLHP_STAT > StW_AnglHP  .
    3. If the check value = 0, steering wheel centered
    4. Center the steering wheel, and then install the steering wheel holder. Make sure that the front road wheels are in a straight ahead position.
  10. Exit the vehicle with the laptop still connected to Toolbox.
  11. Place the laptop on a cart or other surface that is a safe distance from the alignment rack.
    CAUTION: Placing the laptop on the alignment rack can result in damage in later steps.
  12. Place chocks on both sides of the driver's side rear tire.
  13. Complete the steps below to make sure that the drive rail stays on for the remainder of this procedure:
    1. Enter the vehicle.
    2. Buckle the driver's seatbelt.
    3. Shift into Neutral.
    4. Use a pen or screwdriver shaft to manually close the latch assembly on the driver's door while it is open.
      NOTE: The latch is fully closed when it clicks twice.
    5. Put the vehicle in Jack Mode. See JACK MODE ACTIVATION .
  14. If new suspension components were installed on the vehicle, make sure all related fasteners are torqued to specification.
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