🔧 Tucson - Tail Light Bulb Replacement

Replacing both tail light bulbs on your Tucson is a beginner-friendly job. You’ll remove the rear tail lamp assemblies, replace the bulbs, then test the lights before driving.

Difficulty Level: Beginner | Estimated Time: 20-40 minutes

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⚠️ Safety & Precautions

• ⚠️ Turn the vehicle off and remove the key before working on the lights.
• ⚠️ Let the bulbs cool if the lights were recently on; bulbs can get hot.
• ⚠️ Do not touch the glass part of new bulbs with bare fingers. Skin oil can shorten bulb life.
• ⚠️ Use gentle pressure when removing the lamp assembly so you do not crack the plastic locating pins.
• ⚠️ Battery disconnect is not required for this bulb replacement.

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🔧 Required Tools

You'll need the following tools for this repair:

• Phillips #2 screwdriver
• 10mm socket
• 1/4-inch ratchet
• Plastic trim removal tool
• Nitrile gloves
• Safety glasses

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Rear tail light bulbs - Replace in pairs - Qty: 2
• Dielectric grease - Qty: 1 small tube

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📋 Before You Begin

• Park your Tucson on level ground and shift to Park.
• Set the parking brake.
• Turn all exterior lights off.
• Open the liftgate for access to the rear lamp mounting screws.
• Put on safety glasses and nitrile gloves.
• Dielectric grease is a non-conductive moisture barrier used lightly on bulb seals and electrical connectors.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Open the liftgate and locate the lamp screws

• Open the liftgate fully.
• Look at the inner edge of each rear tail lamp assembly, next to the liftgate opening.
• Use a Phillips #2 screwdriver or 10mm socket, depending on the fastener style fitted, to remove the visible lamp mounting screws/bolts.
• Set the screws aside in a safe place.
• Use a cup for small screws.

Step 2: Remove the tail lamp assembly

• Hold the outside edge of the lamp with both hands.
• Pull the lamp assembly straight rearward from the vehicle.
• If it feels stuck, use a plastic trim removal tool carefully at the outer edge to help release the locating pins.
• Do not twist the lamp sideways. The plastic guide pins can break.
• No torque spec applies during removal.

Step 3: Identify the tail light bulb socket

• Look at the back of the removed lamp assembly.
• The tail light/brake light bulb socket is the larger twist-lock socket in the rear lamp housing.
• A twist-lock socket is a bulb holder that turns slightly to lock or unlock from the lamp housing.
• Use your gloved hand to turn the socket counterclockwise about a quarter turn.
• Pull the socket straight out of the lamp housing.

Step 4: Remove the old bulb

• Use nitrile gloves to grip the old bulb.
• Pull the bulb straight out of the socket if it is a wedge-style bulb.
• If your bulb has small metal side pins, push it in slightly and turn counterclockwise to release it.
• Do not squeeze the glass hard. Broken glass can cut you.

Step 5: Install the new bulb

• Use nitrile gloves to handle the new rear tail light bulb.
• Apply a very small amount of dielectric grease to the rubber seal area only, if present.
• Push the new bulb straight into the socket until it seats fully.
• If it is a pin-style bulb, align the pins, push in, and turn clockwise until it locks.
• Do not touch bulb glass.

Step 6: Reinstall the bulb socket

• Insert the bulb socket back into the lamp housing.
• Use your gloved hand to turn the socket clockwise until it locks.
• Make sure the socket sits flat and snug against the housing seal.

Step 7: Reinstall the tail lamp assembly

• Line up the lamp locating pins with the holes in the body.
• Push the lamp straight forward until it seats evenly.
• Install the mounting screws by hand first to avoid cross-threading.
• Use the Phillips #2 screwdriver or 10mm socket with 1/4-inch ratchet to tighten the screws.
• Torque to 3-4 Nm (27-35 in-lbs) if using a torque tool; otherwise snug only, do not overtighten.

Step 8: Repeat on the other side

• Repeat Steps 1 through 7 on the opposite rear tail lamp assembly.
• Replace both bulbs even if only one failed, because they usually age at the same rate.

Step 9: Test the lights

• Close the liftgate enough that it will not block your view, but do not slam it yet.
• Turn the parking lights on and verify both tail lights illuminate.
• Press the brake pedal and verify both brake lights brighten.
• Use a helper if available, or back up near a wall so you can see the reflection.
• If a bulb does not work, turn the lights off and recheck that the bulb and socket are fully seated.

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✅ After Repair

• ✅ Confirm both tail lights and brake lights work before driving.
• ✅ Make sure both lamp assemblies sit flush with the body.
• ✅ Check that the liftgate closes normally and does not contact the lamps.
• ✅ No scan tool, coding, or infotainment reset is needed for this repair.

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💰 DIY vs Shop Cost

Shop Cost: $60-$140 (parts + labor)

DIY Cost: $10-$30 (parts only)

You Save: $50-$110 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.3-0.6 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.