🔧 Sonata - Side View Mirror Replacement

Replacing a side view mirror means removing the inner door trim, unplugging the mirror wiring, and unbolting the mirror from inside the door. This is usually done after mirror glass breaks, the housing cracks, or the power adjuster stops working.

Difficulty Level: Intermediate | Estimated Time: 1.0-2.0 hours (per side)

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⚠️ Safety & Precautions

• ⚠️ The door may contain a side airbag; avoid probing yellow connectors and disconnect the battery before working inside the door.
• ⚠️ Use eye protection when popping trim clips; they can release suddenly.
• ⚠️ Support the mirror with one hand while removing the last nut so it doesn’t fall and chip paint.
• ⚠️ Battery disconnect: Recommended—disconnect the negative battery cable and wait 3 minutes before door trim removal.

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🔧 Required Tools

You'll need the following tools for this repair:

• 10mm socket
• 1/4" drive ratchet
• 6" socket extension
• Phillips screwdriver #2
• Trim removal tool set (plastic pry tools)
• Pick tool (small)
• Torque wrench (inch-pound or small Nm capable)
• Needle-nose pliers
• Painters tape (1")
• Magnetic parts tray
• Work light
• Safety glasses
• Mechanic gloves
• 10mm wrench

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Side view mirror assembly (left or right, correct options) - Qty: 1
• Mirror mounting gasket/seal (if not included with mirror) - Qty: 1
• Door panel trim clips (optional) - Qty: 5-10

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📋 Before You Begin

• Park on level ground, shift to Park, and turn the ignition off.
• Lower the window glass fully (gives you room to handle the door panel).
• Use 10mm wrench to disconnect the negative battery cable, then wait 3 minutes.
• Put painters tape along the mirror edge on the door skin to help protect paint.
• Keep screws in a tray by location.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Remove the inner mirror “sail” trim cover

• Use a trim removal tool set (plastic pry tools) to pry off the small triangular trim piece at the top front of the door (inside, by the mirror).
• If there’s a small clip tether or foam, release it gently with a pick tool (small).

Step 2: Remove the door handle/armrest screws

• Use a pick tool (small) to pop off any small screw covers in the inner door pull/armrest area.
• Use a Phillips screwdriver #2 to remove the exposed screws (commonly in the armrest and/or behind the inside handle area).

Step 3: Release the door panel clips

• Slide a trim removal tool set (plastic pry tools) under the bottom edge of the door panel and pry outward to pop the clips.
• Work around the sides and bottom until all clips release.
• Pry near each clip to avoid cracking panel.

Step 4: Lift the door panel up and disconnect wiring

• Lift the door panel straight upward to unhook it from the window channel.
• Support the panel and unplug connectors using a pick tool (small) to lift locking tabs if needed.
• If equipped, disconnect the mirror switch connector.
• For the inside door handle cable: use needle-nose pliers to rotate the cable end out of the handle lever, then lift the cable housing out of its bracket.
• Don’t pull wires; pull connector bodies.

Step 5: Peel back the vapor barrier carefully

• Behind the door panel is a plastic sheet (vapor barrier) that keeps water off the interior.
• Peel it back only near the mirror area using a trim removal tool set (plastic pry tools).
• Try to keep the sticky butyl seal intact so it reseals later.

Step 6: Unplug the mirror electrical connector

• Locate the mirror harness connector near the upper front of the door.
• Press the lock tab and unplug it by hand; use a pick tool (small) only if the tab is stubborn.
• Assumption note: Mirror options vary (power/heated/turn signal). If your replacement mirror has extra connectors, match them to your door harness before bolting it in.

Step 7: Remove the mirror mounting nuts

• Hold the mirror on the outside with one hand.
• Use a 10mm socket, 6" socket extension, and 1/4" drive ratchet to remove the mirror mounting nuts (typically 3 nuts).
• Remove the mirror from the door and guide the wiring through the opening.

Step 8: Install the new mirror

• Verify the mirror gasket/seal is in place and seated flat (this prevents wind noise and water leaks).
• Feed the mirror wiring through the door opening and position the mirror on the door.
• Start all nuts by hand to prevent cross-threading.
• Use a torque wrench (inch-pound or small Nm capable) with a 10mm socket to tighten the mirror nuts evenly: Torque to 8-10 Nm (71-89 in-lbs).
• Snug evenly to avoid cracking mirror base.

Step 9: Reconnect wiring and quick-function check

• Plug in the mirror connector until it clicks.
• Reconnect any door panel connectors you unplugged (mirror switch, window switch, etc.).
• Use a 10mm wrench to reconnect the negative battery cable snugly.
• Turn ignition ON and test (as equipped): mirror adjustment, heat, turn signal/puddle lamp.
• Turn ignition OFF and disconnect the negative battery cable again with a 10mm wrench before final reassembly (safer around airbag wiring).

Step 10: Re-seal the vapor barrier and reinstall the door panel

• Press the vapor barrier back into the sticky seal all the way around.
• Reconnect the inside handle cable (seat the cable housing, then hook the cable end into the lever) using needle-nose pliers if needed.
• Reconnect all electrical connectors by hand.
• Hang the door panel on the top lip at the window channel, then push downward to seat it.
• Press around the edges to snap all clips back in.
• Reinstall screws using a Phillips screwdriver #2, then reinstall any screw covers with a trim removal tool set (plastic pry tools).
• Snap the triangular sail trim back on by hand.

Step 11: Final battery reconnect

• Use a 10mm wrench to reconnect the negative battery cable.
• Tighten until snug; do not over-tighten the battery terminal.

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✅ After Repair

• Turn ignition ON and confirm: mirror adjust works in all directions, mirror folds (if equipped), heat works (if equipped), turn signal/puddle lamp works (if equipped).
• Check for wind noise on a short drive; if noisy, the gasket may be pinched or nuts uneven.
• Verify the window and door lock switches work before you fully finish.
• If a door panel clip didn’t re-seat, remove that area and replace the clip.

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💰 DIY vs Shop Cost

Shop Cost: $250-$650 (parts + labor)

DIY Cost: $90-$400 (parts only)

You Save: $160-$250 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.

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🎯 Ready to get started?

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