Replacement of a rear door power window regulator on a 2024 Tesla Cybertruck Dual Motor. Requires removal of the rear door trim panel and water/vapor barrier to access the regulator assembly through the door inner shell.

Warnings

Tools required

Parts

• Rear door window regulator assembly (Cybertruck-specific, left or right as applicable) × 1 — Tesla OEM Cybertruck rear door regulator — verify side and confirm with VIN
• Door panel retaining clips (replacements for any broken on removal) × 1 — OEM-spec Cybertruck door panel clips
• Butyl/vapor barrier sealant (if barrier is disturbed) × 1 — Automotive-grade butyl rope sealant

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 48V low-voltage battery (Cybertruck-specific — NOT 12V). Use insulated tools; remove negative terminal first. See architecture notes for location.
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 LV disconnect: lower the affected rear window approximately halfway, then fully raise it and shut the vehicle off. This positions the regulator carriage for easier access.
7. Open the rear door fully and support it; do not allow it to swing on the hinge during work.
8. Place protective covering over the door sill and seat trim to prevent scratching.

Procedure

1. 1

   Secure window glass in the closed position
   With the window fully up, apply two strips of painter's tape from the top of the glass over the door frame to hold the glass in the closed position. This prevents the glass from dropping when the regulator is disconnected.
   ⚠Do not skip this step — a dropped rear glass can shatter inside the door.
2. 2

   Remove rear door trim panel fasteners
   Locate and remove any visible fasteners on the rear door trim panel — typically behind the inner door pull, behind trim caps near the armrest, and along the lower edge. Use a Torx or Phillips driver as appropriate. Place fasteners in a labeled tray.
3. 3

   Release trim panel clips and remove panel
   Using a non-marring plastic trim tool, work around the perimeter of the trim panel to release the retaining clips. Pull straight outward, not at an angle. Once clips are free, lift the panel slightly to disengage it from the window sill, then tilt it outward to access the rear of the panel.
   ⚠Stainless exoskeleton edges are sharp — do not let the trim panel pivot against the door frame.
4. 4

   Disconnect electrical connectors from the trim panel
   Disconnect the wiring harnesses to the door switch pack, speaker, courtesy lighting, and any latch handle electronics. Press the connector locks fully — do not pry on the wires. Set the trim panel aside on a padded surface, outer face up.
5. 5

   Peel back the vapor/water barrier
   Carefully peel the vapor barrier away from the door inner shell, working from one corner. Preserve the butyl sealant where possible — it will be reused. Fold the barrier back and tape it out of the work area.
   ℹ️If the barrier tears, plan to replace the butyl sealant on reassembly to maintain water sealing.
6. 6

   Disconnect regulator motor electrical connector
   Locate the window regulator motor connector inside the door cavity. Release the locking tab and disconnect. Free the harness from any clips along the regulator frame.
7. 7

   Separate window glass from the regulator carriage
   Through the access holes in the door inner shell, locate the glass-to-carriage clamp(s) or fastener(s). Loosen per Tesla service manual. Verify the glass is still secured by the painter's tape, then carefully lift the glass clear of the carriage. The glass remains taped at the top of the door.
   ⚠Confirm the tape is holding the glass before fully releasing the carriage clamp.
8. 8

   Remove regulator mounting fasteners
   Remove the fasteners securing the regulator assembly to the door inner panel — typically along the rails and at the motor mounting point. Note fastener locations; some may be different lengths. Torque to OEM specification on reinstall — refer to Tesla Service Manual for exact regulator-to-door fastener spec.
9. 9

   Maneuver regulator out of the door cavity
   Tilt the regulator assembly to clear the inner panel access opening and remove it from the door. The Cybertruck rear door cavity is tight — do not force the assembly; rotate it to find the correct exit angle.
   ⚠Avoid scraping any painted surfaces or the inside of the stainless door shell.
10. 10

    Compare new regulator to old
    Place the old and new regulators side by side. Confirm rail length, motor location, connector orientation, and carriage position match. Verify side-specific fitment (left vs. right rear).
11. 11

    Install new regulator into door cavity
    Maneuver the new regulator into the door cavity at the same angle used for removal. Align the mounting points with the door inner panel holes. Hand-start all mounting fasteners before torquing any one of them.
12. 12

    Torque regulator mounting fasteners
    Tighten regulator-to-door fasteners in a cross pattern. Torque to OEM specification — refer to Tesla Service Manual for the exact rear regulator mounting torque.
13. 13

    Reattach window glass to carriage
    Lower the glass (still taped) onto the new regulator carriage. Align the glass mounting features with the carriage clamp. Tighten the glass clamp fastener to OEM specification — refer to Tesla Service Manual.
    ⚠Over-tightening a glass clamp can crack the glass — use the manufacturer's specified torque only.
14. 14

    Reconnect motor harness and verify routing
    Reconnect the regulator motor electrical connector until the lock clicks. Re-secure the harness in any factory clips. Verify the harness will not be pinched by the carriage through full travel.
    Torque spec

    Connector Screws4 Nm (3 lb-ft)

Reassembly

1. Reseat the vapor barrier against the door inner shell, pressing firmly into the butyl sealant. Apply fresh butyl sealant in any areas where the original was lost or torn — water intrusion will damage the door speaker and electronics.
2. Reconnect all trim panel electrical connectors (switch pack, speaker, courtesy light, handle electronics).
3. Align the trim panel to the window sill first, then press the perimeter clips into place working around the panel until all clips are seated.
4. Reinstall all visible trim panel fasteners and trim caps.
5. Remove the painter's tape from the window glass.
6. Reconnect the 48V low-voltage battery — positive terminal first, then negative. Torque battery terminal hardware per spec.
7. Close the door and allow the vehicle to wake. Some BCM functions may take 1-2 minutes to initialize on Cybertruck.

Verification

• Cycle the rear window fully down and fully up at least 3 times. Listen for binding, scraping, or motor strain.
• Perform the window auto-up/auto-down initialization: hold the switch in the full-down position for 2-3 seconds after the glass bottoms, then hold full-up for 2-3 seconds after it tops out. This re-teaches the anti-pinch end stops on the Cybertruck BCM.
• Test the anti-pinch function by lightly obstructing the glass during auto-up — it must reverse.
• Spray water along the top of the door glass and check the interior for leaks (vapor barrier seal verification).
• Confirm no door-related faults are displayed on the center touchscreen.
• Verify door switch pack, speaker, and courtesy lighting all function — confirms harness connectors were fully reseated.
• If the touchscreen displays any persistent body control fault after a full sleep/wake cycle, have the vehicle scanned by a Tesla-certified technician.

More procedures for this vehicle