2026-11-09

四轮定位检查和调整

校正代码 31002300 0.90 NOTE: Unless otherwise explicitly stated in the procedure, the correction code and its associated FRT reflect all of the work required to perform this procedure, including the linked procedures. Do not stack correction codes unless explicitly told to do so. NOTE: See Flat Rate Times to learn more about FRTs and how they are created. NOTE: See 人员保护 to make sure wearing proper PPE when performing the below procedure. NOTE: See 人体工程学注意事项 for safe and healthy working practices.

  • 2026-11-09: Added the wheel cap steps.
  • 2024-12-09: Removed instruction to add the test drive correction code. The test drive is now included in the alignment FRT.
  • 2023-04-05: Removed advisement to seek assistance if rear camber cannot be brought into specification.
  • 2023-07-19: Added Service Mode instructions and removed steps.
  • 2023-10-03: Added weight information for ballast bags.
Equipment:
  • 1096767-00-A Seat Cover
  • 1071271-00-A Chassis Height Measuring Tool
  • 1049463-00-A Steering Wheel Level
Note
When performing a suspension adjustment, always add correction code 31002300 first, which accounts for toe adjustment. If camber/caster adjustments are performed, also add correction code 31000200.
  • Toe adjustment: 31002300
  • Toe and camber/caster adjustment: 31002300 + 31000200
Note
This procedure assumes the vehicle suspension is operating as intended. If needed, a suspension inspection can be performed.
Note
Model 3 and Model Y vehicles do not have dedicated adjustment points for camber and caster. Instead, camber and caster are adjusted by manipulating the suspension lash and slop. The real-world accuracy of these adjustments is achieved by installing 68 kg (150 lbs) ballast bags on each front seat to simulate the presence of a driver and front passenger. Performing this service procedure without ballast bags compromises the real-world accuracy of the adjustments.
Note
If a four wheel alignment check has just indicated that a camber and/or caster adjustment is necessary, and the vehicle is still on the alignment rack, refer to Adjust Front Camber and Caster for front camber/caster adjustment and to Adjust Rear Camber for rear camber adjustment.
Note
Make sure the vehicle profiles on the alignment machine match the alignment specifications in the Service Manual. If alignment specifications do not match, they may need to be manually entered; refer to the alignment machine's instructions for additional information.

Add this procedure to the Repair Order/Service Visit as a separate line item/activity.

Prepare for Adjustment

  1. Make sure the tire pressures are to specification.
    Note
    Use the tire sticker values displayed on the door jam. If unavailable, use these values:
    • 18 inch wheels - 42 psi
    • 19 inch wheels - 42 psi
    • 20 inch wheels - 42 psi
  2. Make sure that the alignment rack slip/turn plates are locked.
  3. Disconnect the charging cable from the vehicle.
    Warning
    Do not attach the charging cable to the charge port while the vehicle is on the rack.
  4. Drive the vehicle onto the alignment rack, and stop the vehicle approximately 6 inches before the turn plates to allow for rolling compensation.
  5. Shift into Park.
  6. Install wheel chocks.
  7. Install seat covers on the driver and front passenger seats.
  8. From outside of the vehicle, fasten the driver and front passenger seat belts, and shift into Neutral.
  9. Pass a shop towel halfway through the both door strikers, and use a pen to latch the doors.
  10. Raise the alignment rack to a working height and slightly lower to lock.
  11. Remove all the 4 wheel caps.
  12. Install the alignment heads onto the wheels.
  13. Remove the wheel chocks.
  14. Type the vehicle information into the alignment machine.
  15. Perform a rolling compensation and manually position the vehicle onto the slip/turn plates.
  16. Reinstall the wheel chocks.
  17. Remove the alignment slip/turn plate pins.
  18. If necessary, calibrate the ride height tool.
    1. Use a tape measure to measure the height of the tool.
    2. If necessary, adjust the metal knob to compensate for the height of the tool (i.e., the tool should read "0 mm" after adding the height of the tool).
  19. Measure the ride height at the 4 locations shown.
    Note
    The locations are 75 mm towards the center line from the vehicle lifting points.
  20. Check that the vehicle's ride height is within specifications. See 轮毂定位.
    Note
    Move the front seats fore or aft to set the ride height to spec.
  21. Install the brake pedal depressor and steering wheel bubble level.
  22. Perform a caster sweep, center and set the steering wheel using the bubble level and steering wheel holder.
  23. Print the vehicle summary and identify which alignment parameters are not within specifications.
    Note
    Make sure to refer to the correct alignment specification for when ballast bags are used.
    Note
    If the alignment parameters are within specifications, go to step 2 of Complete the Alignment.
  24. Raise the alignment rack to an overhead height and slightly lower to lock.
  25. Remove the mid aero shield panel. See 面板 - 流线型护板 - 后部（拆卸和更换）.
  26. Adjust the rear camber. See Adjust Rear Camber.

Adjust Rear Camber

  1. If the rear camber is within specification and does not require adjustment, adjust the rear toe. See Adjust Rear Toe.
  2. Slightly loosen, but do not remove, the rear LH lower aft link to knuckle bolt.
  3. With assistance, adjust the rear LH camber to specifications. See 轮毂定位.
    • Move the knuckle in toward the center line to add positive camber.
    • Move the knuckle out from the center line to add negative camber.
  4. If the camber is correct, go to step 10.
  5. Slightly loosen, but do not remove, the rear LH lower aft link to subframe bolt.
  6. Adjust the rear LH camber to specifications. See 轮毂定位.
    • Move the link in toward the center line to add positive camber.
    • Move the link out from the center line to add negative camber.
  7. If the camber is correct, go to step 10.
  8. Slightly loosen, but do not remove, the rear LH upper aft link to subframe bolt.
  9. Adjust the rear LH camber to specifications. See 轮毂定位.
    • To add positive camber, move the link out from the center line.
    • To add negative camber, move the link in toward the center line.
  10. Tighten the suspension bolts that were loosened.
    • Lower Aft Link to Knuckle Bolt
      115 Nm (84.8 lbs-ft)
    • Lower Aft Link to Subframe Bolt
      115 Nm (84.8 lbs-ft)
    • Upper Aft Link to Subframe Bolt
      134 Nm (98.8 lbs-ft)
  11. Perform step 2 through step 10 for the RH side of the vehicle if necessary.
  12. Adjust the rear toe. See Adjust Rear Toe.

Adjust Rear Toe

  1. If the rear toe is within specification and does not require adjustment, adjust the front camber and caster. See Adjust Front Camber and Caster.
  2. Loosen the nut on the rear LH toe link to subframe bolt.
  3. With assistance, rotate the rear LH toe link to subframe bolt to adjust the rear LH toe to specifications. See 轮毂定位.
    • To add positive toe in, move the link in toward the center line.
    • To add negative toe out, move the link out from the center line.
  4. When the rear LH toe is correct, tighten the nut.
    85 Nm (62.7 lbs-ft)
  5. Perform step 2 through step 4 for the RH side of the vehicle if necessary.
  6. Adjust the front camber and caster. See Adjust Front Camber and Caster.

Adjust Front Camber and Caster

  1. If the front camber and caster are within specification and do not require adjustment, adjust the front toe. See Adjust Front Toe.
  2. Remove the cowl screen panel. See 面板 - 前围篦板（拆卸和更换）.
  3. Mark the location of the LH FUCA mount bolts by drawing a circle around each.
    Tip
    The circles provide a reference for the adjustment process.
  4. Slightly loosen, but do not remove, the LH FUCA mount bolts.
  5. With assistance, adjust the front LH camber and LH caster to specifications. See 轮毂定位.
    1. Negative Caster
    2. Negative Camber
    3. Positive Caster
    4. Positive Camber
  6. Use a pry tool or large screwdriver to pry between the damper mounting nuts and body openings, so as to move the FUCA mount inside the shock tower.
    • Moving the FUCA mount out from the center line makes positive camber.
    • Moving the FUCA mount in toward the center line makes negative camber.
    • Moving the FUCA mount to the rear makes positive caster.
    • Moving the FUCA mount to the front makes negative caster.
  7. When the front LH camber and LH caster are at the correct setting, have an assistant tighten the FUCA mount bolts to hold the position.
    30 Nm (22.1 lbs-ft)
  8. Perform a caster sweep, center and set the steering wheel, and check the alignment.
  9. Repeat step 3 through step 8 as necessary.
  10. When the front LH camber and LH caster are correct, tighten the larger LH FUCA mount bolts.
    62 Nm (45.7 lbs-ft)
  11. Tighten the smaller LH FUCA mount bolts.
    35 Nm (25.8 lbs-ft)
  12. Perform step 3 through step 11 for the RH side of the vehicle if necessary.
  13. Adjust the front toe. See Adjust Front Toe.

Adjust Front Toe

  1. If the front toe is within specification and does not require adjustment, complete the alignment. See Complete the Alignment.
  2. Loosen the jam nut on the LH inner tie rod.
  3. Rotate the LH inner tie rod to adjust the front LH toe to specifications. See 轮毂定位.
    • To add positive toe in, move the tie rod end in toward the center line.
    • To add negative toe out, move the tie rod end out from the center line.
  4. When the front LH toe is correct, tighten the jam nut on the LH inner tie rod.
    80 Nm (59.0 lbs-ft)
  5. Perform step 2 through step 4 for the RH side of the vehicle if necessary.
  6. Complete the alignment. See Complete the Alignment.

Complete the Alignment

  1. Print the vehicle summary and verify that the alignment parameters are within specifications. See 轮毂定位.
    Note

    Repeat the adjustment for any parameter that is not within specification.

  2. Install the mid aero shield panel. See 面板 - 流线型护板 - 后部（拆卸和更换）.
  3. Lower the alignment rack to a working height and lock.
  4. Remove the alignment heads from the wheels.
  5. Install all the 4 wheel caps.
  6. Remove the brake pedal depressor.
  7. Install the alignment slip/turn plate pins.
  8. Lower the alignment rack to the ground.
  9. Unlatch the driver's door, shift into Park, and remove the steering wheel bubble level.
  10. Unbuckle the seat belts and remove the ballast bags from the vehicle.
  11. Remove the seat covers from the seats.
  12. 通过触摸屏启用“维护模式”。请参阅维护模式。
  13. 解锁车辆网关以进行诊断通信。请参阅网关（解锁）。
  14. 在车辆触摸屏上，点击Service Mode（扳手图标）。
  15. 点击Chassis（减震器图标），然后点击Alignment & Tires。
  16. 点击Clear Offset，然后点击Run。
  17. 点击Controls（车辆图标）、Service Mode，然后点击Exit Service Mode。
  18. Remove the wheel chocks.
  19. Install the cowl screen panel, if removed. See 面板 - 前围篦板（拆卸和更换）.
  20. Remove the vehicle from the alignment rack.
  21. Perform a test drive and verify vehicle operation.