How to Replace Side View Mirrors on a 2018-2020 Honda Odyssey
Step-by-step door panel removal, wiring, tools, parts, torque specs, and safety tips for 2018, 2019, 2020
How to Replace Side View Mirrors on a 2018-2020 Honda Odyssey
Step-by-step door panel removal, wiring, tools, parts, torque specs, and safety tips for 2018, 2019, 2020
🔧 Odyssey - Side View Mirror Replacement
This repair replaces a damaged outside side view mirror assembly on your Odyssey. The mirror is mounted through the front door shell, so you’ll remove the inner front door trim panel, unplug the mirror connector, unbolt the mirror, then install the new assembly.
Difficulty Level: Beginner | Estimated Time: 45-90 minutes per side
⚠️ Safety & Precautions
- ⚠️ Disconnect the 12V battery before unplugging door wiring connectors.
- ⚠️ Wear safety glasses and gloves because the inner door has sharp metal edges.
- ⚠️ Support the mirror with one hand before removing the last mounting nut so it does not fall and scratch the door.
- ⚠️ Do not turn the ignition ON while door connectors are unplugged.
- ⚠️ If your replacement mirror has different features than the original, such as heat, turn signal, or camera, those functions may not work correctly.
🔧 Required Tools
You'll need the following tools for this repair:
- 10mm socket
- Ratchet wrench 3/8-inch drive
- 10mm wrench
- Phillips #2 screwdriver
- Small flathead screwdriver
- Flat trim removal tool
- Plastic panel clip remover
- Torque wrench 3/8-inch drive
- Painter’s tape 1-inch
- Work light
- Safety glasses
- Nitrile gloves
🔩 Required Parts
HowToo sells all the parts you need for this repair:
- Outside side view mirror assembly - Qty: 1 per side
- Front door trim panel clips - Qty: As needed
- Mirror mounting nuts - Qty: 3 per side if damaged or missing
📋 Before You Begin
- Park your Odyssey on level ground and set the parking brake.
- Turn the ignition OFF and remove the key or keep the smart key away from the van.
- Fully lower the front window on the side you are repairing.
- Apply painter’s tape around the outside mirror base to help protect the paint.
- Use a 10mm socket to disconnect the negative battery cable.
- A trim removal tool is a plastic pry tool used to release clips without scratching panels.
🔨 Step-by-Step Instructions
Follow these steps in order:
Step 1: Disconnect the Battery
- Open the hood.
- Use a 10mm socket and ratchet wrench to loosen the negative battery cable clamp.
- Lift the negative cable off the battery post.
- Move the cable aside so it cannot spring back and touch the battery post.
- Wait at least 3 minutes before unplugging door connectors.
Step 2: Remove the Inner Mirror Trim Cover
- Open the front door fully.
- Use a flat trim removal tool to gently pry off the triangular inner mirror trim cover at the front upper corner of the door.
- Pull the cover straight away from the door once the clips release.
- Set the cover somewhere safe.
- Tip: Pry slowly to avoid broken clips.
Step 3: Remove the Door Handle Screw Cover
- Use a small flathead screwdriver wrapped with painter’s tape to open the small screw cover behind the inside door handle.
- Use a Phillips #2 screwdriver to remove the screw behind the cover.
- Place the screw in a cup or magnetic tray.
Step 4: Remove the Pull Handle Screw
- Use a small flathead screwdriver wrapped with painter’s tape to open the screw cover in the door pull handle area.
- Use a Phillips #2 screwdriver to remove the screw inside the pull handle.
- Keep this screw separate from the door handle screw.
Step 5: Remove the Power Window Switch Panel
- Use a flat trim removal tool to gently pry up the power window switch panel from the armrest.
- Lift the panel slowly.
- Use a small flathead screwdriver to press each connector locking tab.
- Unplug the connectors by pulling on the plastic connector body, not the wires.
Step 6: Remove the Front Door Trim Panel
- Use a plastic panel clip remover at the lower rear edge of the door panel.
- Pop the plastic clips loose one at a time along the bottom and sides.
- Once the clips are loose, lift the door panel straight upward to unhook it from the window ledge.
- Use a small flathead screwdriver to release any remaining cable or connector clips.
- Place the door panel on a clean towel or cardboard.
Step 7: Peel Back the Moisture Barrier Near the Mirror
- Use your hands and a flat trim removal tool to peel back the plastic moisture barrier at the front upper area of the door.
- Do not tear the plastic sheet if possible.
- Use painter’s tape to hold the moisture barrier out of your way.
- The moisture barrier is the plastic sheet that keeps water inside the door drain path instead of inside the cabin.
Step 8: Unplug the Mirror Connector
- Use a work light to locate the side mirror electrical connector inside the front door.
- Use a small flathead screwdriver to press the connector locking tab.
- Pull the connector apart by the plastic body.
- Release the mirror wiring harness from any plastic retainers by hand or with the small flathead screwdriver.
Step 9: Remove the Old Side View Mirror
- Hold the outside mirror with one hand.
- Use a 10mm socket and ratchet wrench to remove the three mirror mounting nuts from inside the door.
- If access is tight, use a 10mm wrench on the upper nut.
- Guide the wiring harness through the door opening.
- Remove the mirror from the outside of the door.
- Mirror mounting nut torque on installation: 8 Nm (71 in-lbs)
Step 10: Install the New Side View Mirror
- Feed the new mirror wiring harness through the door opening.
- Place the new mirror against the outside of the door.
- Start all three mirror mounting nuts by hand first.
- Use a 10mm socket to snug the nuts evenly.
- Use a torque wrench with a 10mm socket to tighten the mirror mounting nuts: Torque to 8 Nm (71 in-lbs).
- Do not overtighten. The mirror base can crack.
Step 11: Connect and Route the Mirror Wiring
- Plug the mirror connector into the door harness by hand until it clicks.
- Route the wiring the same way the original harness was routed.
- Clip the harness into its retainers by hand.
- Make sure the wire cannot touch the window glass or regulator inside the door.
Step 12: Test the Mirror Before Reassembly
- Reconnect the power window switch panel connectors by hand.
- Use a 10mm socket to temporarily reconnect the negative battery cable.
- Turn ignition ON without starting the engine.
- Use the mirror switch to move the glass up, down, left, and right.
- If equipped, test the mirror turn signal and mirror heat.
- Turn ignition OFF.
- Use a 10mm socket to disconnect the negative battery cable again before reassembling the door.
Step 13: Reinstall the Moisture Barrier
- Press the moisture barrier back into the original black butyl sealant by hand.
- If the sealant no longer sticks, add butyl moisture barrier sealant strip.
- Seal the front and bottom edges carefully to help prevent water leaks.
Step 14: Reinstall the Front Door Trim Panel
- Reconnect any door panel cables and electrical connectors by hand until they click.
- Hang the upper edge of the door panel over the window ledge.
- Line up the plastic clips with the holes in the door.
- Press around the edges of the panel by hand until the clips snap in.
- Use a Phillips #2 screwdriver to reinstall the door handle screw.
- Use a Phillips #2 screwdriver to reinstall the pull handle screw.
- Close the screw covers by hand.
Step 15: Reinstall the Switch Panel and Mirror Trim Cover
- Plug the power window switch connectors in by hand until they click.
- Snap the switch panel back into the armrest by hand.
- Align the triangular inner mirror trim cover clips.
- Press the trim cover into place by hand.
Step 16: Reconnect the Battery
- Use a 10mm socket to reconnect the negative battery cable.
- Use a torque wrench with a 10mm socket to tighten the battery terminal clamp: Torque to 5 Nm (44 in-lbs).
✅ After Repair
- ✅ Test mirror adjustment in all directions from the driver switch.
- ✅ If equipped, test mirror heat by turning on the rear defroster.
- ✅ If equipped, test the mirror turn signal with the hazard lights.
- ✅ Test the front window to make sure it moves smoothly and does not touch the mirror wiring.
- ✅ Check that the door lock, inside handle, and outside handle all work normally.
- ✅ After a car wash or rain, check the inside door edge for water leaks.
💰 DIY vs Shop Cost
Shop Cost: $350-$750 per side parts + labor
DIY Cost: $90-$350 per side parts only
You Save: $260-$400 per side by doing it yourself!
Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 1-1.5 hours per side.
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