🔧 Tucson - Front Turn Signal Bulb Replacement

This repair replaces the front turn signal bulbs on your Tucson. A failed turn signal bulb can cause fast blinking, reduced visibility, and unsafe lane changes, so replace it as soon as possible.

Difficulty Level: Beginner | Estimated Time: 15-30 minutes

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⚠️ Safety & Precautions

• ⚠️ Turn the ignition off and remove the key before working near the headlamp assemblies.
• ⚠️ Let the bulbs cool before touching the area; bulbs and housings can get hot after use.
• ⚠️ Do not touch the glass part of the new bulb with bare fingers. Skin oil can shorten bulb life.
• ⚠️ Battery disconnect is not required for this bulb replacement.

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🔧 Required Tools

You'll need the following tools for this repair:

• Nitrile gloves
• Safety glasses
• Clean microfiber cloth
• Plastic trim tool
• 10mm socket
• 1/4-inch ratchet
• 6-inch extension
• Phillips #2 screwdriver

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Front turn signal bulb, amber 2357A/1157A style - Qty: 2

Replace in pairs for matching brightness and color.

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📋 Before You Begin

• 🅿️ Park your Tucson on level ground and set the parking brake.
• 💡 Turn the headlight switch and hazard switch off.
• 🧤 Put on nitrile gloves before handling the new bulbs.
• 📌 A bulb socket is the plastic holder that locks the bulb into the lamp housing.
• 📌 A plastic trim tool is a non-metal pry tool that helps remove plastic clips without scratching panels.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Open the Hood

• Use your hand to pull the hood release inside the cabin.
• Use your hand to release the secondary hood latch at the front of the hood.
• Raise the hood and secure it with the prop rod.

Step 2: Locate the Front Turn Signal Bulb Socket

• Use a flashlight if needed and look behind the headlamp assembly.
• The front turn signal bulb socket is mounted at the outer/front corner area of the headlamp housing.
• Look for the socket with wiring leading into the amber turn signal section.
• Work one side at a time.

Step 3: Create Access if Space Is Tight

• Use the 10mm socket, 1/4-inch ratchet, and 6-inch extension to loosen or remove nearby intake duct fasteners if they block access on the driver side.
• Use the Phillips #2 screwdriver to remove small plastic screws if any upper cover or duct panel blocks your hand.
• Use the plastic trim tool to lift plastic clips gently if a cover needs to move.
• Set any fasteners aside in order so they go back in the same place.
• Torque to snug only for plastic/duct fasteners; do not overtighten.

Step 4: Remove the Bulb Socket

• Use your hand to grip the turn signal bulb socket firmly.
• Turn the socket counterclockwise about a quarter turn.
• Pull the socket straight out of the headlamp housing.
• Do not pull on the wires.

Step 5: Remove the Old Bulb

• Use your gloved hand to press the bulb inward slightly.
• Turn the bulb counterclockwise to unlock it from the socket.
• Pull the bulb straight out.
• If the bulb is broken, use safety glasses and nitrile gloves before handling the pieces.

Step 6: Install the New Bulb

• Use nitrile gloves and a clean microfiber cloth to handle the new amber bulb.
• Line up the locating pins on the bulb with the slots in the socket.
• Push the bulb in gently and turn it clockwise until it locks.
• If the bulb does not seat easily, remove it and realign the pins.
• Never force the bulb.

Step 7: Reinstall the Bulb Socket

• Use your hand to insert the bulb socket straight into the headlamp housing.
• Turn the socket clockwise about a quarter turn until it locks.
• Make sure the socket sits flat against the housing seal to keep moisture out.

Step 8: Test the Turn Signal

• Use your hand to switch the ignition to ON without starting the engine.
• Use the turn signal stalk to test the repaired side.
• Use the hazard switch to verify both front turn signals flash correctly.
• If the bulb does not light, turn the ignition off, remove the socket, and reseat the bulb.

Step 9: Repeat on the Other Side

• Use the same steps to replace the opposite front turn signal bulb.
• Replace both bulbs so brightness and flash color match.

Step 10: Reinstall Any Removed Covers or Ducts

• Use the plastic trim tool to align any plastic clips by hand before pressing them into place.
• Use the Phillips #2 screwdriver to reinstall any plastic screws.
• Use the 10mm socket, 1/4-inch ratchet, and 6-inch extension to reinstall any 10mm fasteners.
• Torque to snug only for plastic/duct fasteners; do not overtighten.

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✅ After Repair

• ✅ Confirm both front turn signals flash at a normal speed.
• ✅ Confirm the hazard lights work on both sides.
• ✅ Check that both bulb sockets are fully locked into the headlamp housings.
• ✅ Watch for condensation inside the headlamp over the next few days; moisture can mean the socket is not sealed correctly.

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💰 DIY vs Shop Cost

Shop Cost: $60-$120 (parts + labor)

DIY Cost: $10-$25 (parts only)

You Save: $50-$95 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.3-0.5 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.