🔧 Tucson - Front Turn Signal Bulb Replacement

This repair replaces the front turn signal bulbs in your Tucson. The bulbs sit inside the front headlamp assemblies, and access is usually from behind the headlamp under the hood.

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

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⚠️ Safety & Precautions

• ⚠️ Turn the ignition off and remove the key before starting.
• ⚠️ Let the headlamp area cool if the lights were recently on.
• ⚠️ Do not touch the glass part of the new bulb with bare fingers; skin oil can shorten bulb life.
• ⚠️ No battery disconnect is normally 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
• Flashlight
• 10mm socket
• 1/4-inch ratchet
• 6-inch extension

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

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

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📋 Before You Begin

• 🅿️ Park your Tucson on level ground and set the parking brake.
• 💡 Turn the headlamp switch and hazard switch off.
• 🧤 Put on nitrile gloves to keep oil off the new bulb glass.
• 🔦 Open the hood and use a flashlight to locate the rear of the front headlamp assembly.
• 📝 Replace front turn signal bulbs in pairs if one has failed, because the other is usually close behind.

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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 hood prop rod.
• Use a flashlight to look behind the headlamp assembly on the side you are replacing.

Step 2: Identify the Front Turn Signal Socket

• Use a flashlight to find the turn signal bulb socket at the rear outer area of the headlamp assembly.
• The socket is the plastic holder that twists into the headlamp housing and carries the bulb wiring.
• Do not pull on the wires. Grip the plastic socket body only.
• Tip: Match the new bulb shape first.

Step 3: Create Extra Access if Needed

• If your hand fits behind the headlamp, skip to Step 4.
• If access is tight, use a 10mm socket, 1/4-inch ratchet, and 6-inch extension to remove the upper headlamp retaining bolts.
• Gently shift the headlamp assembly forward just enough to reach the bulb socket.
• Do not force the headlamp or stretch the wiring harness.

Step 4: Remove the Bulb Socket

• Use your gloved hand to grasp the front turn signal socket.
• Turn the socket counterclockwise about a quarter turn.
• Pull the socket straight out of the headlamp assembly.
• If it feels stuck, gently wiggle the socket while turning it by hand.

Step 5: Remove the Old Bulb

• Use your gloved hand to press the old bulb slightly inward.
• Turn the bulb counterclockwise and pull it out of the socket.
• A bayonet-style bulb has small side pins that lock into slots; press-and-turn releases it.
• Inspect the socket for melted plastic, green corrosion, or loose contacts.

Step 6: Install the New Bulb

• Use nitrile gloves or a clean microfiber cloth to handle the new front turn signal bulb, amber 2357A/2357NA.
• Line up the bulb side pins with the slots in the socket.
• Press the bulb inward and turn it clockwise until it locks.
• If the bulb glass was touched, wipe it clean with a microfiber cloth before installing the socket.

Step 7: Reinstall the Socket

• Use your gloved hand to insert the bulb and socket straight into the headlamp assembly.
• Turn the socket clockwise until it locks firmly.
• Make sure the socket sits flat against the headlamp housing so moisture cannot enter.

Step 8: Reinstall the Headlamp Bolts if Removed

• If you loosened or removed the headlamp bolts, align the headlamp assembly by hand.
• Use a 10mm socket, 1/4-inch ratchet, and 6-inch extension to reinstall the bolts.
• Tighten the bolts snugly; do not overtighten plastic mounting tabs.
• Torque to 8-10 Nm (71-89 in-lbs)

Step 9: Repeat on the Other Side

• Use the same steps to replace the opposite front turn signal bulb.
• Replace in pairs for even brightness and better reliability.

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✅ After Repair

• ✅ Turn the ignition to ON without starting the engine.
• ✅ Switch on the left and right turn signals and verify both front bulbs flash normally.
• ✅ Press the hazard switch and confirm both front turn signal bulbs flash.
• ✅ If a bulb flashes fast, recheck the bulb fitment and socket connection.
• ✅ Close the hood securely after testing.

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💰 DIY vs Shop Cost

Shop Cost: $60-$130 (parts + labor)

DIY Cost: $8-$25 (parts only)

You Save: $50-$105 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?

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