🔧 Outback - Rear Window Regulator Replacement

Your Outback’s rear window regulator is the cable-and-track assembly that moves the glass up and down. Replacing it means removing the rear door panel, securing the glass so it can’t fall, swapping the regulator, then reassembling and testing the window.

Difficulty Level: Intermediate | Estimated Time: 1.5-3.0 hours (per door)

Assumption: typical Subaru door fastener torque is ~7.5 Nm (66 in-lbs) unless marked otherwise.

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⚠️ Safety & Precautions

• 🧤 Support the window glass before unbolting it; falling glass can cut you.
• 👓 Wear safety glasses; door clips and glass chips can fly.
• 🔋 Disconnect the negative battery cable if you’ll unplug the window switch/motor connectors (helps prevent shorts).
• ✋ Keep fingers clear of the regulator tracks and scissor/cable path while testing.
• 📌 Do not tear the vapor barrier (plastic sheet); it prevents water leaks into the cabin.

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🔧 Required Tools

You'll need the following tools for this repair:

• 10mm socket
• 1/4" ratchet
• 6" socket extension
• Phillips #2 screwdriver
• Small flathead screwdriver
• Trim removal tool (plastic)
• Panel clip pliers
• Needle-nose pliers
• Torque wrench (in-lb)
• Painter’s tape (1" or wider)
• Pick tool
• Magnetic pickup tool
• Work light
• Gloves
• Safety glasses

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Rear window regulator assembly - Qty: 1
• Rear door trim panel clips - Qty: 6-12
• Butyl sealant tape (vapor barrier adhesive) - Qty: 1

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📋 Before You Begin

• Park on level ground and remove the key.
• If the window still moves: turn the key ON and lower the rear window to about halfway (so the glass mounting bolts line up with the access holes), then turn key OFF.
• Disconnect the battery negative terminal using a 10mm socket. Set the cable aside so it can’t spring back.
• Lay painter’s tape and a towel nearby to protect paint and glass.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Remove the rear door switch/trim pieces

• Use a trim removal tool (plastic) to gently pry up the window switch panel.
• Unplug the switch connector(s) by pressing the lock tab and pulling straight out. Lock tab = little plastic “click” clip.
• Use a small flathead screwdriver to pop off any small screw covers in the door pull/handle area.

Step 2: Remove door panel screws

• Remove the screws in the door pull and inner handle area using a Phillips #2 screwdriver.
• If any fastener is a bolt instead of a screw, remove it using a 10mm socket with a 1/4" ratchet.

Step 3: Pop the door panel clips and lift the panel off

• Start at the bottom edge. Slide in the trim removal tool (plastic) and pop each clip free.
• If clips are stubborn, use panel clip pliers to pull them straight out.
• Lift the whole door panel upward to unhook it from the top window ledge.
• Disconnect any remaining connectors (courtesy light, etc.) by hand.

Step 4: Peel back the vapor barrier (plastic sheet)

• Carefully peel the plastic back using your fingers and a pick tool if needed.
• Try to keep the black sticky butyl on the door (not on the plastic). Butyl = gummy black adhesive.

Step 5: Secure the glass so it cannot drop

• If the glass is still attached to the regulator, place multiple strips of painter’s tape (1" or wider) from the outside of the glass over the door frame to hold the glass up.
• Add at least 3–5 strips. Press firmly so it sticks well.

Step 6: Unbolt the glass from the regulator

• Look through the large access holes in the door and locate the two glass clamp/mounting bolts.
• Remove the bolts using a 10mm socket, 6" socket extension, and 1/4" ratchet.
• Once the bolts are out, lift the glass fully up by hand and re-tape it securely at the top.
• Torque to 7.5 Nm (66 in-lbs) when reinstalling.

Step 7: Unplug the window motor and remove the regulator/motor

• Unplug the motor connector by pressing the lock tab and pulling straight out.
• Remove the regulator and motor mounting bolts using a 10mm socket, 6" socket extension, and 1/4" ratchet.
• Use a magnetic pickup tool if a bolt drops inside the door.
• Maneuver the regulator assembly out through the largest access opening.
• Torque to 7.5 Nm (66 in-lbs) when reinstalling regulator/motor bolts.

Step 8: Install the new regulator

• Slide the new regulator into the door cavity the same way the old one came out.
• Start all mounting bolts by hand first to avoid cross-threading, then tighten with a 10mm socket and 1/4" ratchet.
• Torque to 7.5 Nm (66 in-lbs).
• Plug in the window motor connector until it clicks.

Step 9: Reattach the glass to the regulator

• Remove some tape so you can lower the glass carefully into position (keep at least 1–2 strips holding it).
• Align the glass mounting points to the regulator clamps.
• Install the glass bolts using a 10mm socket, 6" socket extension, and 1/4" ratchet.
• Torque to 7.5 Nm (66 in-lbs).

Step 10: Function test before reassembly

• Reconnect the battery negative cable using a 10mm socket.
• Plug in the window switch temporarily and cycle the window down/up while keeping hands clear of the mechanism.
• Listen for cable popping/grinding; stop immediately if the glass tilts or binds.
• Disconnect the battery negative cable again using a 10mm socket before reassembling the door.

Step 11: Reinstall the vapor barrier and door panel

• Press the vapor barrier back into the sticky butyl. Add butyl sealant tape if it no longer sticks.
• Reconnect all electrical connectors.
• Hang the door panel on the top ledge first, then press clips in around the perimeter with your hands.
• Reinstall screws using a Phillips #2 screwdriver, and reinstall any 10mm bolts using a 10mm socket.

Step 12: Final test

• Reconnect the battery negative cable using a 10mm socket.
• Test the rear window from the rear switch and from the driver master switch.

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✅ After Repair

• Run the window up/down 5–10 times. Make sure it moves smoothly and seals at the top.
• Check that the door opens/closes normally and no wiring is pinched.
• If you hear wind noise later, re-check the vapor barrier seal and the door panel seating.

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💰 DIY vs Shop Cost

Shop Cost: $350-$700 (parts + labor, per rear door)

DIY Cost: $90-$250 (parts only, per rear door)

You Save: $260-$450 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 1.5-3.0 hours.

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🎯 Ready to get started?

HowToo makes it easy: same-day/2-day shipping on every part, plus all the tools and specialty tools you need! Check out the parts and tools sections below to add everything to your cart.