Replacement of a front power window regulator on a 2024 Model S Plaid. Requires careful removal of the frameless door's interior trim panel and glass before unbolting the regulator/motor assembly from the door inner skin.

Warnings

Tools required

Parts

• Front door window regulator assembly (with motor) — driver or passenger side as applicable × 1 — OEM Tesla Model S (2021+ refresh) front window regulator — verify side and VIN
• Door panel retaining clips (replace any broken on removal) × 1 — OEM-spec door panel clip set
• Plastic vapor barrier / butyl sealant (if existing tears on removal) × 1 — Generic 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 12V (or 16V Li-ion on 2021+ Plaid, located under the rear seat) low-voltage battery. The 12V is in the frunk under the nose cowl panel; the 16V is under the right rear seat cushion on applicable Plaid units. Verify which is fitted before opening trim.
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 the 12V/16V, lower the affected window approximately halfway (or to the position that exposes the regulator-to-glass clamp bolts through the access holes in the inner door skin) — this is critical because the frameless glass must be removable from the regulator carriers.
7. Apply painter's tape to the upper door edge and B-pillar area to protect paint from trim tool slips.
8. Lay a soft blanket on the seat and sill to receive the removed glass.

Procedure

1. 1

   Remove door interior trim panel
   Carefully pry off the small triangular trim at the mirror sail and any screw covers. Remove the visible Torx fasteners securing the door panel (typically behind the pull cup and along the lower edge). Using a wide plastic trim tool, release the perimeter clips by pulling outward starting from the bottom corner and working around. Lift the panel up and off the window belt-line. Do not pull the panel away from the door yet — disconnect the speaker, tweeter, ambient light, and door handle/switch connectors first.
   ⚠Aluminum body — pry only against the inner door structure, never the outer skin.
2. 2

   Remove vapor barrier
   Carefully peel back the plastic vapor barrier from the butyl sealant bead. Work slowly to keep the sheet intact for reuse. If it tears, plan to replace the butyl on reassembly. Set the barrier aside, sticky side up, on a clean surface.
3. 3

   Position glass for release
   Temporarily reconnect the 12V battery only if the window was not pre-positioned. Cycle the window so the regulator-to-glass clamp bolts align with the access holes in the inner door panel. Then disconnect the 12V/16V again before proceeding.
   ⚠Do not operate the window with hands or tools inside the door cavity.
4. 4

   Release glass from regulator
   With a helper supporting the glass from outside the vehicle, loosen the clamp bolts/nuts that secure the glass to the regulator carriers through the access holes. Lift the glass straight up and out of the door, tilting outward as needed to clear the belt-line seals. Place the glass on the prepared blanket, edge-down against a padded support.
   ⚠️Frameless glass is heavy and the edges chip easily. Two-person handling required.
5. 5

   Disconnect regulator motor
   Locate the window motor electrical connector on the regulator assembly and release it by depressing the lock tab. Move the harness aside and free it from any clips routed across the regulator.
6. 6

   Unbolt regulator assembly
   Remove the fasteners securing the regulator/motor assembly to the inner door skin (typically along the rails and at the motor mount). Support the assembly with one hand as the last fastener is removed. Maneuver the regulator out through the large service opening in the door, rotating as needed to clear the inner structure.
   ℹ️Note the orientation and any alignment dowels before removal — the replacement must seat the same way.
   Torque spec

   Module Mounting Bolts8 Nm (6 lb-ft)
7. 7

   Compare and prep new regulator
   Place the new regulator next to the original and confirm rail length, motor position, and connector orientation match. Pre-route any harness pigtails. Verify the carrier clamps are at a position that will align with the glass mounting points.
8. 8

   Install new regulator assembly
   Maneuver the new regulator into the door cavity in the same orientation as removal. Hand-start all mounting fasteners before tightening any one fully, to allow the rails to self-align in the door. Once seated, torque the mounting fasteners to specification.
   Torque spec

   Module Mounting Bolts8 Nm (6 lb-ft)
9. 9

   Reconnect motor electrical connector
   Plug the motor connector in until it audibly clicks. Re-secure the harness in any clips. Verify no wiring is pinched between the regulator rails and the door inner skin.
10. 10

    Reinstall glass to regulator
    With a helper, lower the glass back into the door through the belt-line seals, tilting as needed. Align the glass mounting studs/holes with the regulator carriers. Hand-thread the clamp fasteners through the access holes, then torque to OEM specification — refer to Tesla Service Manual. Verify the glass is centered front-to-rear and tilted correctly before final tightening.
    ⚠Incorrect glass alignment will cause wind noise and water leaks on this frameless door.

Reassembly

1. Re-seat the plastic vapor barrier against the butyl bead. Apply fresh butyl rope sealant to any areas where the original tore.
2. Reconnect the speaker, tweeter, ambient light, and door handle/switch connectors. Verify each clicks home.
3. Hook the door panel onto the belt-line first, then press the perimeter clips into their holes by hand. Reinstall any Torx fasteners and trim covers.
4. Reinstall the mirror sail triangle trim.
5. Reconnect the 12V/16V low-voltage battery. Torque the terminal hardware per the Battery Terminal Bolts spec.
6. Allow the vehicle to wake and complete its boot sequence (touchscreen fully loaded) before operating the window.

Verification

• Initialize the window auto-up/anti-pinch: with the door closed, fully lower the window using the switch and hold the switch DOWN for ~2 seconds past the bottom stop. Then fully raise the window and hold the switch UP for ~2 seconds past the top stop. Repeat on the opposite direction if the window does not auto-operate correctly.
• Test one-touch auto-up and auto-down — both should function and the anti-pinch reverse should trigger if the glass meets resistance.
• Open and close the door several times — on Model S the window 'indexes' (drops slightly when the handle is pulled, raises when the door closes). Confirm this indexing operates smoothly with no contact between glass edge and seal.
• Inspect the glass alignment at the top seal and B-pillar with the door closed — there should be no visible gap or interference. Misalignment will cause wind noise above ~50 mph.
• Spray water along the upper door seal and check for leaks into the cabin.
• Check the touchscreen for any door or window-related alerts and clear if present.
• While unrelated to this job, take the opportunity to verify cabin air filter age (Tesla recommends replacement every 2 years, or 3 years on HEPA-equipped Model S) and brake fluid age (every 2 years) — both are commonly overdue on Tesla vehicles despite the 'no scheduled maintenance' marketing.

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