🔧 Sonata - Side View Mirror Replacement

Replacing the side mirror on your Sonata usually means swapping the entire mirror assembly (housing + motor + signals), which requires removing the inner door trim to access the mirror bolts and wiring connector. This is straightforward, but you’ll be working with plastic clips and electrical connectors, so go slow to avoid breaking anything.

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

Quick check (so I guide you correctly): Which side are you replacing (driver or passenger)? And are you replacing the whole mirror assembly or just the mirror glass?

---

⚠️ Safety & Precautions

• ⚠️ Turn the car fully OFF, keep the key/fob at least 10 feet away, and don’t press the Start button during the job.
• ⚠️ Disconnect the 12V battery negative terminal to prevent shorts while unplugging the mirror wiring.
• ⚠️ After disconnecting 12V power, wait at least 3 minutes before unplugging connectors in the door.
• ⚠️ Use trim tools (not screwdrivers) on panels to avoid cracking trim and scratching paint.
• ⚠️ Support the mirror with your hand before removing the last nut so it doesn’t fall and chip the door.

---

🔧 Required Tools

You'll need the following tools for this repair:

• Safety glasses
• Nitrile gloves
• Trim removal tool set
• Small flat trim pick
• Phillips #2 screwdriver
• 10mm socket
• 1/4" drive ratchet
• 3" extension for 1/4" ratchet
• Torque wrench (inch-pound or small Nm range)
• Panel clip pliers
• Painters tape
• Magnetic parts tray

---

🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Side view mirror assembly (correct side, painted or unpainted) - Qty: 1
• Door trim panel clips - Qty: 5-10
• Foam mirror gasket (if not included with mirror) - Qty: 1

---

📋 Before You Begin

• Park on level ground and turn the car OFF.
• Lower the window on the door you’re working on (helps access and prevents accidental lockout).
• Apply painters tape around the mirror base area on the door to protect the paint.
• Disconnect the 12V battery negative terminal using a 10mm socket. (On your Sonata, the 12V battery is typically located in the trunk area under the floor/side access panel.)
• Wait 3 minutes before unplugging door connectors.

---

🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Remove the inner “sail” trim panel

• At the front top corner of the door (inside), pry off the small triangular trim cover using a trim removal tool set.
• If it feels stuck, use a small flat trim pick to start a gap, then finish with the trim tool. Pull straight out to pop clips.

Step 2: Remove the door trim panel screws

• Remove the screw(s) in the inner door handle area using a Phillips #2 screwdriver.
• Remove the screw(s) in the armrest/pull handle pocket using a Phillips #2 screwdriver.
• Place screws in a magnetic parts tray.

Step 3: Pop the door trim panel loose

• Start at the bottom edge of the door panel and pry outward using a trim removal tool set.
• Work around the sides to release the plastic clips. If a clip won’t release, use panel clip pliers at the clip location.
• Slow, even pulls prevent broken clips.

Step 4: Lift the door trim panel up and unplug connectors

• Lift the panel straight up to unhook it from the window ledge.
• Unplug the door switch connectors by pressing the lock tab and pulling the connector out by hand (use a small flat trim pick only if needed).
• If equipped, disconnect the courtesy light connector at the bottom of the panel.
• Set the door panel somewhere safe to avoid scratches.

Step 5: Disconnect the mirror wiring connector

• Locate the mirror wiring connector near the front upper door area behind the sail trim location.
• Press the connector lock tab and unplug it by hand. Use a small flat trim pick to gently help the tab if it’s stubborn.

Step 6: Remove the mirror mounting nuts

• Support the mirror on the outside with one hand.
• Remove the mirror mounting nuts using a 10mm socket, 1/4" drive ratchet, and 3" extension.
• Keep the nuts—some mirrors come with new nuts, some don’t.

Step 7: Remove the old mirror assembly

• From outside the door, pull the mirror away while feeding the wire harness through the opening.
• Remove any old foam gasket material stuck to the door.

Step 8: Install the new mirror assembly

• Confirm the new mirror matches (connector, turn signal lens, heater, blind-spot indicator if equipped).
• Feed the mirror harness through the door opening and set the mirror in place.
• Hand-thread the mounting nuts, then tighten evenly using a 10mm socket and 1/4" drive ratchet.
• Finish with a torque wrench: Torque to 5.9–7.8 Nm (4.3–5.8 ft-lbs).

Step 9: Reconnect mirror wiring and reassemble the door

• Plug the mirror connector back in until it clicks (no tool needed).
• Reconnect all door panel connectors by hand.
• Hook the top of the door panel onto the window ledge, then press around the edges to snap clips back in.
• Reinstall screws using a Phillips #2 screwdriver.
• Reinstall the triangular sail trim by pressing it straight in by hand.

Step 10: Reconnect 12V power

• Reconnect the 12V battery negative terminal using a 10mm socket.
• Make sure the terminal is fully seated and tight.

---

✅ After Repair

• Turn the car ON and test mirror functions: power adjust, folding (if equipped), heater/defrost (if equipped), and turn signal (if on the mirror).
• Confirm the mirror glass is stable and the mirror sits flush against the door (no gaps in the gasket).
• Verify the window and door lock switches work (a missed connector is common).
• If the replacement mirror is unpainted, it will need paint to match the car.

---

💰 DIY vs Shop Cost

Shop Cost: $250-$750 (parts + labor)

DIY Cost: $120-$450 (parts only)

You Save: $130-$300 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 1.0-2.0 hours.

---

🎯 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.