🔧 Tucson - Taillight Bulb Replacement

Replacing both taillight bulbs on your Tucson is a simple beginner repair. The rear combination lamps are serviced from the back of the vehicle, and replacing both sides together keeps brightness even and helps avoid another bulb failure soon.

Difficulty Level: Beginner | Estimated Time: 30-60 minutes

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⚠️ Safety & Precautions

• ⚠️ Turn the exterior lights off before removing any bulb.
• ⚠️ Set the parking brake and keep your Tucson in Park.
• ⚠️ Let the bulbs cool if the lights were recently on.
• ⚠️ Do not force the lamp housing. The plastic guide pins can crack.
• ⚠️ Battery disconnect is not required for this repair.

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🔧 Required Tools

You'll need the following tools for this repair:

• Safety glasses
• Nitrile gloves
• Flashlight
• Phillips #2 screwdriver
• 10mm socket
• 3/8-inch ratchet
• Trim clip removal tool (specialty)
• Clean microfiber towel

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Rear tail/stop light bulbs - Qty: 2
• Rear turn signal bulbs - Qty: 2
• Rear backup light bulbs - Qty: 2
• Rear side marker bulbs - Qty: 2

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📋 Before You Begin

• 🅿️ Park your Tucson on level ground with the parking brake engaged.
• 💡 Switch all exterior lights off.
• 🧤 Put on nitrile gloves. Gloves help keep oils from your skin off the bulbs.
• 🔎 Work on one side at a time so you can use the other side as a reference.
• 📌 A bulb socket is the plastic holder that twists into the taillight housing and holds the bulb.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Open the liftgate

• Open the rear liftgate fully.
• Use a flashlight to look at the inner edge of the taillight assembly where it meets the liftgate opening.
• You will see the fasteners holding the outer taillight housing to the body.

Step 2: Remove the driver-side taillight fasteners

• Use a Phillips #2 screwdriver or 10mm socket with a 3/8-inch ratchet to remove the taillight retaining screws/bolts on the inner edge of the lamp.
• Set the screws/bolts aside in a safe place.
• These fasteners are small; reinstall later to Torque to 4-6 Nm (35-53 in-lbs).

Step 3: Remove the driver-side taillight housing

• Use both hands to hold the taillight housing.
• Pull the housing straight rearward, not sideways.
• If it feels stuck, use a clean microfiber towel under your fingers for grip and gently wiggle it straight back.
• Do not pry hard with metal tools because the lens can crack.
• Pull straight back, slow and steady.

Step 4: Remove the driver-side bulb socket

• Use your gloved hand to rotate the needed bulb socket counterclockwise about a quarter turn.
• Pull the socket straight out of the taillight housing.
• If replacing all rear bulbs, remove one socket at a time so the positions do not get mixed up.

Step 5: Replace the driver-side bulb

• For a wedge-style bulb, use your gloved hand to pull the bulb straight out of the socket.
• For a bayonet-style bulb, push the bulb inward slightly, rotate counterclockwise, then pull it out. A bayonet bulb has small side pins that lock into the socket.
• Install the matching new bulb into the socket by reversing the removal motion.
• Use a clean microfiber towel if you need extra grip.

Step 6: Reinstall the driver-side bulb socket

• Insert the bulb socket into the taillight housing.
• Use your gloved hand to rotate the socket clockwise until it locks.
• No torque wrench is used on bulb sockets. Hand-tight lock only.

Step 7: Test the driver-side bulb before reinstalling the housing

• Turn the light switch on to test the tail lamp.
• Press the brake pedal to test the stop lamp. Use a helper if available.
• Turn on the left turn signal to test the turn signal bulb.
• Shift briefly into Reverse with your foot firmly on the brake to test the backup bulb.
• Switch the lights off after testing.
• If a bulb does not work, remove it with your gloved hand, rotate it 180 degrees if it is a wedge bulb, and reinstall it.

Step 8: Reinstall the driver-side taillight housing

• Line up the guide pins on the taillight housing with the holes in the body.
• Push the housing straight forward until it seats flush.
• Use a Phillips #2 screwdriver or 10mm socket with a 3/8-inch ratchet to reinstall the retaining screws/bolts.
• Tighten to Torque to 4-6 Nm (35-53 in-lbs).

Step 9: Remove the passenger-side taillight fasteners

• Move to the passenger side.
• Use a Phillips #2 screwdriver or 10mm socket with a 3/8-inch ratchet to remove the taillight retaining screws/bolts.
• Set the fasteners aside safely.

Step 10: Remove the passenger-side taillight housing

• Use both hands to hold the taillight housing.
• Pull the housing straight rearward from the vehicle body.
• Use a clean microfiber towel for grip if needed.
• Do not twist the lamp housing sharply.

Step 11: Replace the passenger-side bulb

• Use your gloved hand to rotate the needed bulb socket counterclockwise about a quarter turn.
• Pull the socket out of the housing.
• Remove the old bulb by pulling straight out or pushing in and turning counterclockwise, depending on bulb style.
• Install the matching new bulb into the socket.
• Insert the socket into the housing and rotate clockwise until locked.

Step 12: Test the passenger-side bulb before reinstalling

• Turn the light switch on to test the tail lamp.
• Press the brake pedal to test the stop lamp. Use a helper if available.
• Turn on the right turn signal to test the turn signal bulb.
• Shift briefly into Reverse with your foot firmly on the brake to test the backup bulb.
• Switch the lights off after testing.

Step 13: Reinstall the passenger-side taillight housing

• Line up the guide pins with the body holes.
• Push the housing straight forward until it sits flush with the body panel.
• Use a Phillips #2 screwdriver or 10mm socket with a 3/8-inch ratchet to reinstall the retaining screws/bolts.
• Tighten to Torque to 4-6 Nm (35-53 in-lbs).

Step 14: Close the liftgate and perform a final light check

• Close the liftgate fully.
• Use the light switch to check both taillights.
• Press the brake pedal to check both brake lights.
• Use the turn signal stalk to check both rear turn signals.
• Shift briefly into Reverse with your foot on the brake to check both backup lights.

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✅ After Repair

• ✅ Confirm both taillight housings sit flush against the body.
• ✅ Make sure no warning lights appear on the dash.
• ✅ If one bulb does not work, recheck that the bulb is fully seated in the socket.
• ✅ Dispose of old bulbs carefully so the glass does not break.

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💰 DIY vs Shop Cost

Shop Cost: $80-$180 (parts + labor)

DIY Cost: $10-$45 (parts only)

You Save: $70-$135 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?

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