How to Replace the Side View Mirror on a 2015 Subaru Outback (LH/RH)
Step-by-step door panel removal, wiring disconnect, tools/parts list, and 66 in-lb torque spec
How to Replace the Side View Mirror on a 2015 Subaru Outback (LH/RH)
Step-by-step door panel removal, wiring disconnect, tools/parts list, and 66 in-lb torque spec


🔧 Outback - Side View Mirror Replacement
You’ll remove the inside door trim, unplug the mirror wiring, unbolt the mirror from the door, and install the new mirror. This is a straightforward bolt-on job, but you must be gentle with the door panel clips and careful around the side airbag inside the door.
Difficulty Level: Intermediate | Estimated Time: 1.0-2.0 hours (one side)
⚠️ Safety & Precautions
- ⚠️ Disconnect the negative battery cable before door trim work; the door contains a side airbag.
- ⚠️ After disconnecting the battery, wait at least 3 minutes before unplugging any connectors.
- ⚠️ Support the door panel as you unplug connectors; don’t let it hang by the wiring.
- ⚠️ Use plastic trim tools to avoid paint and trim damage.
- ⚠️ Keep the ignition OFF while connectors are unplugged to reduce warning lights.
🔧 Required Tools
You'll need the following tools for this repair:
- 10mm socket
- 1/4" drive ratchet
- 3" extension (1/4" drive)
- Torque wrench (in-lb capable)
- Phillips #2 screwdriver
- Plastic trim removal tool set
- Pick tool
- Needle-nose pliers
- Painter’s tape
- Shop light
- Gloves
- Safety glasses
🔩 Required Parts
HowToo sells all the parts you need for this repair:
- Side view mirror assembly (LH or RH, correct options: power/heated/turn signal) - Qty: 1
- Door trim panel clips - Qty: 2-10
- Mirror gasket/seal (if not included with mirror) - Qty: 1
- Butyl tape for vapor barrier (if barrier adhesive tears) - Qty: 1
📋 Before You Begin
- Park on level ground, shift to Park, and turn the ignition OFF.
- Lower the window on the side you’re working on (helps handling the panel).
- Use a 10mm socket to disconnect the negative battery terminal, then wait 3 minutes.
- Apply painter’s tape along the door edge and mirror area to protect paint.
🔨 Step-by-Step Instructions
Follow these steps in order:
Step 1: Remove the small inner “sail” trim panel
- At the top front corner of the door (inside, by the mirror), use a plastic trim removal tool to pry off the small triangular trim piece.
- Pull straight outward to avoid cracking it.
Step 2: Remove the door pull/handle trim and screws
- Use a plastic trim removal tool to pop off the trim cover in the interior door pull (the “grab handle” area).
- Remove the exposed screws using a Phillips #2 screwdriver.
- If there’s a small cover behind the interior door release area, lift it with a pick tool, then remove any screw underneath using a Phillips #2 screwdriver.
Step 3: Remove the door panel (trim panel)
- Slide a plastic trim removal tool under the bottom edge of the door panel and gently pop the retaining clips free.
- Work around the sides, popping clips one by one (you’ll hear them release).
- Lift the panel straight up to unhook it from the window channel.
- Support the panel and unplug connectors (window switch, courtesy light) by pressing the lock tabs; use a pick tool only if needed.
- If equipped with a cable for the inside handle, note its routing and unhook it carefully (a cable is a steel wire inside a plastic sheath).
Step 4: Peel back the vapor barrier near the mirror area
- The vapor barrier is the plastic sheet behind the door panel. Carefully peel it back only as much as needed near the mirror mount.
- If the sticky seal (butyl) stretches, you can re-seal it later; use butyl tape if it tears.
Step 5: Disconnect the mirror wiring connector
- Find the mirror connector near the upper front of the door.
- Press the lock tab and unplug it by hand; use needle-nose pliers gently only if it’s stubborn.
Step 6: Remove the mirror mounting nuts
- Hold the mirror with one hand from the outside so it doesn’t fall or scratch the door.
- Use a 10mm socket, 1/4" ratchet, and 3" extension to remove the three mirror mounting nuts.
- Remove the mirror from the outside and guide the wiring through the opening.
Step 7: Install the new mirror
- Guide the mirror harness through the door opening and seat the mirror on the door.
- Hand-thread the three nuts to avoid cross-threading, then tighten with a 10mm socket.
- Final tighten using a torque wrench: Torque to 7.5 Nm (66 in-lbs).
- Snug only—over-tightening can crack the mirror base.
Step 8: Reconnect wiring and reassemble the door
- Plug the mirror connector back in until it clicks.
- Press the vapor barrier back into place; add butyl tape if needed to fully seal.
- Reconnect all door panel connectors and any handle cable.
- Hook the door panel onto the top window channel and press down to seat it.
- Press around the perimeter to snap all clips back in.
- Reinstall screws with a Phillips #2 screwdriver, then snap the trim covers back on.
- Reinstall the sail trim by aligning clips and pressing it into place by hand.
Step 9: Reconnect the battery
- Reconnect the negative battery terminal using a 10mm socket.
✅ After Repair
- Turn the ignition ON and test mirror movement (up/down/left/right).
- Test mirror heat (if equipped) and turn signal/puddle light (if equipped).
- Confirm the window switch, door lock, and interior handle all work normally.
- Check the mirror sits flush and doesn’t wobble when you gently push on it.
- If any airbag or warning light appears, recheck connectors and battery connection.
💰 DIY vs Shop Cost
Shop Cost: $250-$750 (parts + labor)
DIY Cost: $90-$450 (parts only)
You Save: $160-$300 by doing it yourself!
Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 1.0-1.5 hours.
🎯 Ready to get started?
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