Replace a failed air suspension ride height sensor on a 2024 Model X. The sensor links the lower control arm to the chassis and tells the air suspension ECU the corner's actual height; misalignment or damage causes ride height faults and incorrect leveling.

Warnings

Tools required

Parts

• Air suspension ride height sensor (corner-specific — front-left, front-right, rear-left, or rear-right) × 1 — Manufacturer-specified height sensor for 2024 Model X — match by corner location
• Sensor link/ball stud hardware (if supplied separately) × 1 — OEM specification — replace if damaged or corroded

Preparation

1. Park on level ground, place in P, engage parking brake.
2. Exit ALL doors with the key fob away from the vehicle. Wait at least 2 minutes for HV systems to fully de-energize, even on this non-HV job.
3. Disconnect the 12V low-voltage battery located in the frunk (lift the frunk liner to access). This also prevents Falcon door actuation while you work.
4. DO NOT touch, cut, or pierce ANY orange cable — these are high-voltage and lethal.
5. If at any point you encounter an orange cable, an HV component, or are unsure if a system is de-energized: STOP and consult a Tesla-certified technician.
6. Before disconnecting 12V: enter Service Mode on the touchscreen and activate Jack Mode (suspension > Jack Mode) so the air suspension does not attempt to level when the wheel is unloaded.
7. Identify which corner's height sensor is being replaced (typically based on a stored fault code or visible damage). Note that sensors are corner-specific in mounting geometry.
8. Confirm the replacement sensor matches the corner being serviced.

Procedure

1. 1

   Confirm Jack Mode and lift the vehicle
   With Jack Mode active and 12V disconnected, lift the affected corner using a Tesla-approved jack pad on the designated lift point. Support with a rated jack stand. Air suspension will not refill in Jack Mode, but never trust the air system alone to support the vehicle.
   ⚠Use only Tesla-designated lift points — incorrect lifting will crush the floor-mounted HV battery enclosure or damage the rocker.
2. 2

   Remove the wheel
   Loosen lug nuts before fully lifting if not done already. Remove the wheel and set it aside. Inspect the wheel hardware while it is off.
   Torque spec

   Wheel Lug Nuts136 Nm (100 lb-ft)
3. 3

   Locate the height sensor
   The ride height sensor is mounted to the chassis/subframe with a small bracket and connects via a rigid link to a ball stud on the lower control arm (front corners) or rear lower link (rear corners). Trace the small 3-wire harness from the sensor body up to the chassis connector. Photograph the orientation of the link before disturbing anything — sensor link geometry sets the ride height calibration baseline.
   ℹ️Take a clear reference photo of the link angle and any orientation marks before removal. This helps verify correct reinstallation if calibration values look wrong later.
4. 4

   Disconnect the sensor electrical connector
   Release the harness retainer clips along the chassis. Press the connector lock tab and pull straight off. Inspect the pins for corrosion or green oxidation — a corroded connector will fault the new sensor immediately.
5. 5

   Disconnect the sensor link from the control arm
   Remove the nut securing the lower end of the sensor link to the ball stud on the control arm. Hold the stud with the manufacturer-specified tool (typically a small Allen or Torx feature on the stud) to prevent it from spinning. Lift the link off the stud.
   ⚠Do not pry against the air spring bellows — a small puncture renders the strut scrap.
6. 6

   Unbolt the sensor body from the chassis
   Remove the small mounting bolts (typically 2) holding the sensor body to its bracket on the chassis or subframe. Withdraw the sensor with the link still attached if it comes as an assembly.
   Torque spec

   Mounting Bolts27 Nm (20 lb-ft)
7. 7

   Compare old and new sensors
   Lay the new sensor next to the old. Verify identical body shape, link length, link orientation (left vs right are typically mirrored), and connector pinout. A wrong-corner sensor will install but will read inverted, causing the suspension to over-compress or over-extend on that corner.
8. 8

   Install the new sensor body
   Position the new sensor on its bracket and start the mounting bolts by hand. Torque to specification.
   Torque spec

   Mounting Bolts27 Nm (20 lb-ft)
9. 9

   Connect the sensor link to the control arm
   Place the link end onto the ball stud. Install the retaining nut and, while holding the stud feature, torque to the manufacturer-specified value for the height sensor link nut — refer to Tesla Service Manual (this small link nut is NOT the same as the sway bar link nut and should not be over-torqued).
   ⚠Do not substitute the sway bar link nut torque (55 Nm) for the height sensor link nut — the height sensor link is much smaller. Torque to OEM specification — refer to Tesla Service Manual.
10. 10

    Reconnect the electrical connector and route the harness
    Apply a thin film of dielectric grease to the connector pins if corrosion was present. Click the connector fully home until the lock tab seats. Reattach all harness retainers in their original positions — a sensor harness pulled tight against a moving suspension component will tear within months.
11. 11

    Reinstall the wheel and lower the vehicle
    Mount the wheel and snug the lug nuts. Lower the vehicle until the tire just touches the ground, then torque the lug nuts in a star pattern to specification. Lower fully.
    Torque spec

    Wheel Lug Nuts136 Nm (100 lb-ft)

Reassembly

1. Reconnect the 12V battery in the frunk. Close the frunk.
2. Allow the vehicle to wake fully (touchscreen boots, suspension may hiss as it self-levels).
3. Re-enter Service Mode and exit Jack Mode. The vehicle should attempt to lift the serviced corner to standard ride height.
4. Observe the corner — it should level out smoothly with no hissing leaks, no fault messages, and no excessive overshoot.

Verification

• In Service Mode, view the suspension live data screen. Confirm the replaced corner reports a ride height value within tolerance of the opposite (same axle) corner — typically within a few millimeters.
• Perform the air suspension ride height calibration via Service Mode (required after any height sensor replacement). The vehicle must be on level ground with even tire pressures. Without this calibration the corner will sit at the wrong height even if the sensor is mechanically correct.
• Cycle the suspension between Low, Standard, and High ride heights from the touchscreen. All four corners should respond evenly with no one corner hunting or overshooting.
• Drive the vehicle at low speed and verify no 'Suspension fault' or 'Vehicle may not restart' alerts appear, and that the air system does not continue cycling the compressor at rest (a sign of a leak or miscalibrated sensor).
• Recheck the serviced corner's ride height after a 30-minute key-off rest — the corner should not have sagged relative to its mate.

More procedures for this vehicle