🔧 Ioniq - Rear Turn Signal Bulb Replacement

Your Ioniq’s rear turn signal bulb sits in the rear lamp assembly. The job is mainly gaining access from inside the cargo area, removing the lamp, then swapping the bulb and reinstalling everything so the lamp seals properly.

Difficulty Level: Beginner | Estimated Time: 0.5-1.0 hours

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⚠️ Safety & Precautions

• ⚠️ Turn the car OFF and keep the key/fob away from the vehicle.
• ⚠️ Let the bulbs cool before touching (they get hot).
• ⚠️ Don’t touch the new bulb’s glass with bare fingers (oil can shorten bulb life).
• ⚠️ Be gentle pulling the lamp outward—there are plastic locating pins that can snap.

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🔧 Required Tools

You'll need the following tools for this repair:

• 10mm socket
• 1/4" ratchet
• 6" extension for 1/4" ratchet
• Phillips screwdriver
• Plastic trim removal tool
• Flashlight
• Nitrile gloves
• Safety glasses

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Rear turn signal bulb (amber) - Qty: 1 (one side) or 2 (both sides)
• Rear lamp trim clips (optional) - Qty: 0-2
• Dielectric grease (optional) - Qty: 1

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📋 Before You Begin

• 🅿️ Park on level ground and set the parking brake.
• 🔑 Power the car OFF and keep the key/fob at least 10 feet away.
• 🔦 Open the hatch and empty the cargo area so you can access the side trim.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Confirm you have a replaceable bulb

• Use a flashlight to look behind the rear lamp area from inside the cargo trim.
• If you can access and twist a bulb socket, you have a replaceable bulb.
• If the turn signal is an LED unit with no twist-out socket, the lamp assembly (or LED module) is replaced instead of a bulb—tell me and I’ll give the exact steps for that version.

Step 2: Open the rear side access area

• Use a plastic trim removal tool to open/remove the small access cover in the cargo side trim behind the rear lamp (if equipped).
• If there’s a cargo net hook or small fastener in the way, remove it with a Phillips screwdriver.

Step 3: Remove the rear lamp retaining nuts

• Put on nitrile gloves and safety glasses.
• Use a 10mm socket, 1/4" ratchet, and 6" extension to remove the rear lamp retaining nuts.
• Set the nuts somewhere safe so they don’t drop into the trim.

Step 4: Pull the rear lamp assembly outward

• Hold the lamp with both hands and pull it straight outward from the body.
• Wiggle gently—don’t pry hard.
• If it’s stuck, use the plastic trim removal tool very lightly at the edge to help start it.

Step 5: Remove the turn signal bulb socket

• Find the turn signal socket on the back of the lamp (usually the amber-bulb position).
• Twist the socket counterclockwise by hand and pull it out.

Step 6: Replace the bulb

• Pull the old bulb straight out of the socket (use nitrile gloves).
• Install the new amber bulb by pushing it straight in until fully seated.
• If you have it, apply a tiny amount of dielectric grease (optional) to the socket seal (not on the bulb glass).
• Match the bulb base to the old one.

Step 7: Reinstall the socket and lamp

• Insert the socket back into the lamp and twist clockwise until it locks.
• Line up the lamp’s locating pins with the body holes, then press the lamp straight in until it sits flush.
• Reinstall the nuts using a 10mm socket, 1/4" ratchet, and 6" extension.
• Torque to 7 Nm (5 ft-lbs)

Step 8: Reinstall the interior trim/access cover

• Reinstall any fasteners with a Phillips screwdriver.
• Snap the access cover back into place by hand.

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✅ After Repair

• ✅ Turn the car ON and test the left and right turn signals, then hazards.
• ✅ Make sure the lamp sits flush and doesn’t wobble.
• ✅ If you get fast blinking (hyperflash), the bulb may be wrong type or not seated fully—recheck the socket and bulb fit.

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💰 DIY vs Shop Cost

Shop Cost: $80-$150 (parts + labor)

DIY Cost: $10-$35 (parts only)

You Save: $70-$115 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.5-1.0 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 match the exact part:

• ❓ When you remove the lamp, do you see a twist-out bulb socket (replaceable bulb), or is it an LED unit with no socket?
• ❓ Are you replacing the left, right, or both rear turn signals?