🔧 Prius - Front Turn Signal Bulb Replacement

On your Prius, the front turn signal bulbs sit inside the headlamp area. The job is usually done from under the hood by removing a bulb socket, swapping the bulb, then reinstalling and testing.

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

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⚠️ Safety & Precautions

• ⚠️ Turn the car OFF and remove the key fob from the vehicle area.
• ⚠️ Let the headlamp area cool before reaching in near bulbs.
• ⚠️ Do not touch the new bulb glass with bare fingers; skin oils can shorten bulb life.
• ⚠️ No hybrid high-voltage service is required for this repair.

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🔧 Required Tools

You'll need the following tools for this repair:

• Nitrile gloves
• Safety glasses
• Flashlight
• Trim clip removal tool
• 10mm socket
• 3/8" ratchet
• 6" socket extension

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Front turn signal bulb (amber) - Qty: 2

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📋 Before You Begin

• Park on level ground and set Park.
• Turn the car OFF and keep the key fob at least 10 feet away.
• Open the hood and support it securely.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Confirm which bulb you’re changing

• Turn the hazard lights ON briefly, then OFF, to see which front bulb is flashing.
• Use a flashlight to look into the headlamp area from above so you know which side you’re working on first.

Step 2: Access the rear of the headlamp housing

• Put on nitrile gloves and safety glasses.
• Use a flashlight to locate the turn signal bulb socket on the back of the headlamp assembly (it will have a twist-lock socket).
• If access is tight, remove the nearby upper cover/air duct fasteners using a trim clip removal tool, then remove any 10mm bolts with a 10mm socket, 3/8" ratchet, and 6" socket extension.
• Tip: Take a quick photo before removal.

Step 3: Remove the turn signal bulb socket

• Grip the socket firmly and rotate it counterclockwise about 1/4 turn to unlock it.
• Pull the socket straight out.

Step 4: Replace the bulb

• Pull the old bulb straight out of the socket.
• Install the new front turn signal bulb (amber) by pushing it straight in until fully seated.
• Do not touch the bulb glass; handle it with nitrile gloves.

Step 5: Reinstall the socket

• Insert the socket back into the headlamp opening.
• Rotate clockwise about 1/4 turn until it locks in place.

Step 6: Reinstall any removed covers/ducting

• Reinstall any 10mm bolts using a 10mm socket, 3/8" ratchet, and 6" socket extension.
• Reinstall any clips with the trim clip removal tool.
• Torque to 7 Nm (62 in-lbs) for small 10mm bolts on plastic brackets/covers.

Step 7: Repeat on the other side

• Repeat Steps 2–6 for the opposite headlamp.

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✅ After Repair

• Turn hazards ON and confirm both front turn signals flash normally.
• Check that the bulb is amber and the flashing rate is normal (fast flashing usually means a bulb is still out).
• If a bulb does not light, remove the socket and confirm the bulb is fully seated.

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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 0.5-1.0 hours.

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🎯 Ready to get started?

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