🔧 Tucson - Taillight Bulb Replacement

Replacing both rear taillight bulbs on your Tucson is a beginner-friendly repair. You’ll remove the rear lamp housings, swap the bulbs, then test the lights before reinstalling everything.

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

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⚠️ Safety & Precautions

• ⚠️ Turn the ignition off and remove the key before starting.
• ⚠️ Make sure the exterior lights are switched off so the bulb sockets are not powered.
• ⚠️ Bulbs can get hot. Let the lamps cool for at least 5-10 minutes if they were recently on.
• ⚠️ Do not pull hard on the wiring. The bulb sockets twist out of the lamp housing.
• ⚠️ Wear gloves or handle new bulbs by the plastic base. Skin oil can shorten bulb life.

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🔧 Required Tools

You'll need the following tools for this repair:

• Phillips #2 screwdriver
• Trim removal tool set
• Nitrile gloves
• Safety glasses
• Shop towel

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Rear taillight bulbs - Replace in pairs - Qty: 2

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📋 Before You Begin

• 🅿️ Park your Tucson on level ground and shift to Park.
• 🔒 Set the parking brake.
• 💡 Turn the headlight switch to Off.
• 📦 Open the liftgate to access the inner edge of each rear lamp housing.
• 🧤 Put on nitrile gloves before handling the new bulbs.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Open the Liftgate

• Use your hand to fully open the rear liftgate.
• Stand behind your Tucson and look at the inner edge of one taillight assembly.
• You should see the mounting screws that hold the outer rear lamp housing to the body.

Step 2: Remove the Taillight Mounting Screws

• Use a Phillips #2 screwdriver to remove the screws on the inner edge of the taillight housing.
• Place the screws on a shop towel so they do not roll away.
• Tip: Press firmly to avoid stripping screws.

Step 3: Release the Taillight Housing

• Use both hands to grip the taillight housing.
• Pull the housing straight rearward, away from the vehicle.
• If it feels stuck, use a trim removal tool set at the outer edge to gently help release the retaining pins.
• A trim removal tool is a plastic pry tool that helps prevent scratches.
• Do not twist the housing sideways because the locating pins can break.
• Tip: Pull straight back, not outward.

Step 4: Locate the Taillight Bulb Socket

• Look at the back of the taillight housing.
• Find the taillight bulb socket. The socket is the plastic holder that locks the bulb into the lamp housing.
• Use your hand to turn the socket counterclockwise about a quarter turn.
• Pull the socket straight out of the housing.

Step 5: Remove the Old Bulb

• Wear nitrile gloves before touching the bulb.
• If your bulb is a push-in style, pull it straight out of the socket by hand.
• If your bulb is a twist-lock style, gently press it in, turn it counterclockwise, then pull it out.
• Use a shop towel if the bulb is slippery or dirty.
• Do not squeeze the glass hard because it can break.

Step 6: Install the New Bulb

• Use nitrile gloves to handle the new rear taillight bulb.
• Install the new bulb into the socket the same way the old one came out.
• For a push-in bulb, press it straight into the socket until fully seated.
• For a twist-lock bulb, insert it, gently press inward, then turn clockwise until it locks.
• Tip: Match the old bulb’s base shape.

Step 7: Reinstall the Bulb Socket

• Insert the socket back into the taillight housing by hand.
• Turn the socket clockwise about a quarter turn until it locks.
• Make sure the socket sits flat against the housing seal.
• No torque specification is used for the bulb socket; tighten by hand only.

Step 8: Test the New Bulb Before Reassembly

• Turn the headlight switch to the parking light position.
• Check that the new taillight bulb illuminates.
• Turn the lights back off after confirming the bulb works.
• If it does not light, remove the socket by hand and make sure the bulb is fully seated.

Step 9: Reinstall the Taillight Housing

• Align the taillight housing pins with the body openings.
• Push the housing straight forward by hand until it sits flush with the body.
• Make sure the weather seal is not pinched.

Step 10: Reinstall the Mounting Screws

• Use a Phillips #2 screwdriver to reinstall the taillight mounting screws.
• Tighten the screws snugly by hand.
• Torque to 3-5 Nm (27-44 in-lbs) if using a low-range torque screwdriver.
• Do not overtighten because the lamp housing plastic can crack.

Step 11: Repeat on the Other Side

• Move to the opposite taillight.
• Use the Phillips #2 screwdriver, trim removal tool set, nitrile gloves, and shop towel to repeat Steps 2 through 10.
• Replace the second taillight bulb so both sides have matching brightness.

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✅ After Repair

• ✅ Turn on the parking lights and confirm both taillights work.
• ✅ Press the brake pedal and confirm the brake lights still work normally.
• ✅ Turn on the hazard lights and verify the rear turn signals were not disturbed.
• ✅ Close the liftgate and check that both lamp housings sit flush with the body.
• ✅ If a bulb warning remains, switch the lights off and on again after confirming both bulbs are seated correctly.

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💰 DIY vs Shop Cost

Shop Cost: $80-$160 (parts + labor)

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

You Save: $70-$130 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.