🔧 Accord - Rear Window Regulator Replacement

The rear window regulator is the mechanism that raises and lowers the glass inside the door. When it bends, breaks, or the cable frays, the window may drop, move crooked, or stop moving. You’ll remove the rear door panel, unbolt the glass from the regulator, swap the regulator, then reattach and test.

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

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⚠️ Safety & Precautions

• ⚠️ Disconnect the negative battery cable before unplugging door wiring to avoid accidental shorting.
• ⚠️ Support the window glass with tape so it can’t fall and shatter.
• ⚠️ Keep fingers clear of the regulator scissor/cable path while moving the glass.
• ⚠️ Do not tear the vapor barrier (plastic sheet). Reseal it to prevent water leaks.

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🔧 Required Tools

You'll need the following tools for this repair:

• 10mm socket
• 1/4" drive ratchet
• 6" extension (1/4" drive)
• Phillips screwdriver #2
• Flat trim clip tool
• Plastic pry tool set
• Needle-nose pliers
• Torque wrench (inch-lb)
• Painter’s tape (2" wide)
• Pick tool
• Work 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 panel retaining clips - Qty: 1 set
• Butyl ribbon seal (vapor barrier adhesive) - Qty: 1

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📋 Before You Begin

• Park on level ground and turn the ignition OFF.
• Lower the affected rear window until you can access the glass-to-regulator fasteners through the door access holes. If the window is stuck, you may need to remove the panel first and move the glass by hand.
• Use a 10mm socket to disconnect the negative battery cable and isolate it so it can’t spring back.
• Have painter’s tape ready to hold the glass up to the door frame.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Remove the rear door panel

• Use a plastic pry tool to gently pop up the window switch panel in the armrest, then unplug the switch connector.
• Use a Phillips screwdriver #2 to remove the screw(s) in the pull handle/armrest area.
• Use a pick tool to lift any small plastic screw covers, then remove hidden screws with a Phillips screwdriver #2.
• Use a flat trim clip tool to pop the door panel clips around the edges. (A trim clip tool is a forked pry tool that releases plastic fasteners without breaking them.)
• Lift the door panel straight up to unhook it from the window ledge.
• Disconnect any remaining electrical connectors. If equipped, unclip the door-handle cable(s) using a plastic pry tool and needle-nose pliers.

Step 2: Remove and reseal the vapor barrier

• Peel back the plastic vapor barrier carefully by hand. Use a plastic pry tool to help separate the sticky butyl without tearing.
• Tip: Fold it downward—don’t remove it completely.

Step 3: Secure the window glass

• Use painter’s tape (2" wide) to tape the glass to the door frame (outside to inside over the top) so the glass cannot drop.
• If the glass is not fully up, support it with one hand while adding tape.

Step 4: Disconnect the glass from the regulator

• Locate the glass mounting points through the door access holes.
• Use a 10mm socket with a 1/4" ratchet and extension to remove the glass-to-regulator bolts (or loosen the clamp fasteners, depending on regulator style).
• Once free, slide the glass fully up by hand and add more painter’s tape to hold it securely.

Step 5: Unplug the window motor (if attached)

• Use a plastic pry tool to release the connector lock tab, then unplug the motor connector.

Step 6: Remove the regulator assembly

• Use a 10mm socket with a 1/4" ratchet and extension to remove the regulator mounting bolts.
• If the motor is separate from the regulator you’re replacing, use a 10mm socket to remove the motor bolts and transfer the motor to the new regulator.
• Carefully maneuver the regulator out through the largest door opening.

Step 7: Install the new regulator

• Position the new regulator into the door cavity the same way the old one came out.
• Hand-thread all regulator mounting bolts first to avoid cross-threading.
• Use a 10mm socket to snug the bolts, then use a torque wrench to tighten: Torque to Honda factory specification for rear regulator/motor fasteners.

Step 8: Reattach the glass to the regulator

• Remove some painter’s tape while holding the glass with one hand.
• Lower the glass carefully into the regulator carrier/clamps.
• Install the glass fasteners using a 10mm socket, then tighten: Torque to Honda factory specification for rear glass mounting fasteners.

Step 9: Function test before reassembly

• Reconnect the motor connector by hand.
• Reconnect the negative battery cable using a 10mm socket.
• Turn ignition ON and run the rear window fully down and fully up while watching for binding or crooked travel.
• Turn ignition OFF and disconnect the negative battery cable again with a 10mm socket before finishing reassembly.

Step 10: Reinstall the vapor barrier and door panel

• Press the vapor barrier back into place. If the butyl won’t stick, apply new butyl ribbon seal by hand.
• Reconnect door-handle cable(s) using needle-nose pliers and a plastic pry tool.
• Reconnect all electrical connectors by hand.
• Hang the door panel on the top lip first, then press the clips in around the edges with your palm.
• Reinstall screws using a Phillips screwdriver #2 and reinstall any trim covers using a plastic pry tool.
• Reconnect the window switch panel connector, then snap the switch panel back in.
• Reconnect the negative battery cable using a 10mm socket.

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✅ After Repair

• Cycle the rear window up/down 5–10 times and listen for clicking, popping, or cable noise.
• Verify the window seals evenly at the top and does not tilt forward/back.
• If the auto-up/down or pinch protection acts weird, cycle the window fully down then fully up once more (normal relearn behavior after power loss on many Hondas).
• Check for water leaks later: the vapor barrier must be sealed all the way around.

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💰 DIY vs Shop Cost

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

DIY Cost: $80-$220 (parts only, per rear door)

You Save: $270-$480 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.

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Two quick questions so I can tailor this perfectly:

• Which rear door is it: left (driver side) or right (passenger side)?
• Are you replacing the regulator only, or the regulator + motor together?