🔧 Tucson - Taillight Bulb Replacement

On your Tucson, the “taillight” bulbs are inside the rear lamp assemblies. You’ll access the bulb sockets from inside the cargo area, swap the bulbs, then confirm all rear lights work.

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

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⚠️ Safety & Precautions

• Turn the ignition OFF and remove the key before starting.
• Let bulbs cool first—taillight bulbs can get very hot.
• Don’t touch the new bulb glass with bare fingers; skin oils can shorten bulb life.
• If you’re working with the liftgate open, make sure it’s fully supported.

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🔧 Required Tools

You'll need the following tools for this repair:

• Trim panel tool
• Phillips screwdriver
• 10mm socket
• 1/4" ratchet
• Work gloves
• Safety glasses
• Flashlight

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Rear taillight bulb (Stop/Tail) - Replace in pairs - Qty: 2
• Rear turn signal bulb - Optional if you’re replacing those too - Qty: 2
• Rear reverse light bulb - Optional if you’re replacing those too - Qty: 2

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📋 Before You Begin

• Park on level ground and set the parking brake.
• Open the liftgate and remove cargo as needed for access.
• A trim panel tool is a plastic pry tool used to pop panels without scratching.
• Decide which bulbs you mean by “taillight”: most people mean the Stop/Tail bulb (running light + brake light) on the left and right outer lamps.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Verify the correct bulb is out

• Have a helper press the brake pedal while you look at the rear lamps.
• Turn on the parking lights to check the dim “running” filament.
• If you’re unsure which one is out, use a flashlight and look through the lens for the bulb location.

Step 2: Access the rear lamp service door (each side)

• On the side you’re replacing, open the interior access cover behind the lamp.
• Use a trim panel tool to gently pry the access door/cover open.

Step 3: Remove the bulb socket

• Reach in and find the bulb socket for the bulb you’re replacing.
• Rotate the socket counterclockwise by hand and pull it straight out.
• If it’s tight, use work gloves for grip—don’t use pliers (can crack the socket).

Step 4: Replace the bulb

• Pull the old bulb straight out of the socket by hand.
• Install the new bulb (same type as removed) by pushing it straight in until fully seated.
• Match the old bulb exactly.

Step 5: Reinstall the socket and test

• Reinsert the socket into the lamp and rotate clockwise until it locks.
• Turn on the parking lights and press the brake to confirm operation.
• If it doesn’t light, remove the socket again and rotate the bulb 180° and reseat it (some bulb bases can feel “in” but aren’t fully seated).

Step 6: Repeat on the other side

• Repeat Steps 2–5 for the other rear lamp so both sides match in brightness and color.

Step 7 (If you can’t reach the sockets): Remove the outer lamp assembly

• Remove the interior access cover using a trim panel tool.
• Remove the lamp mounting fasteners using a 10mm socket and 1/4" ratchet.
• Carefully pull the lamp straight rearward to release the alignment pins.
• Torque to 7-9 Nm (62-80 in-lbs) when reinstalling the 10mm fasteners (snug only—do not overtighten).
• Twist the socket(s) out, replace bulbs, then reinstall the lamp.

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✅ After Repair

• Confirm all rear lighting works: running lights, brake lights, turn signals, and reverse lights.
• Make sure the access covers are fully clipped back in and won’t rattle.
• If moisture appears in the lamp later, recheck the socket is fully locked and the seal is clean.

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💰 DIY vs Shop Cost

Shop Cost: $60-$150 (parts + labor)

DIY Cost: $10-$40 (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 0.3-0.7 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.