🔧 Headlight Bulb - Replacement

This covers replacing both low-beam headlight bulbs on your Highlander. The bulbs are changed from the rear of the headlamp housings, so you do not need to remove the entire headlight assembly.

Difficulty Level: Beginner | Estimated Time: 0.5-1 hours

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⚠️ Safety & Precautions

• Turn the headlights off and let the bulbs cool completely before touching them.
• Do not touch the glass portion of a halogen bulb with bare fingers. Oil can shorten bulb life.
• Disconnect the negative battery cable if you want the safest possible access, but it is not strictly required for bulb replacement.
• Keep the ignition off while working around the headlamp connectors.

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🔧 Required Tools

You'll need the following tools for this repair:

• 10mm socket
• Ratchet
• Short extension
• Trim clip tool
• Flat trim tool
• Gloves
• Safety glasses

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Low beam headlight bulbs - Qty: 2

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📋 Before You Begin

• Park on level ground and set the parking brake.
• Turn the headlight switch off.
• Open the hood and support it securely.
• If you want extra working room, remove the plastic radiator cover clips near the front edge.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Access the rear of the headlamp

• Open the hood and locate the back side of each headlight housing.
• If needed, use the 10mm socket, ratchet, and short extension to remove any nearby intake duct or cover that blocks access.
• If there are plastic retainers in the way, remove them with the trim clip tool.
• Work slowly to avoid breaking clips.

Step 2: Remove the old bulb

• Reach behind the headlamp and disconnect the bulb electrical connector by pressing the lock tab and pulling straight off.
• Twist the bulb socket counterclockwise by hand and pull it out of the housing.
• Remove the old bulb from the socket.
• If the bulb has a retaining cap or dust cover, remove it by hand first.

Step 3: Install the new bulb

• Put on gloves before handling the new bulb.
• Install the new bulb into the socket the same way the old one came out.
• Insert the bulb and socket into the headlamp housing.
• Twist clockwise by hand until it locks in place.
• Reconnect the electrical connector until it clicks.
• Do not force the connector.

Step 4: Repeat on the other side

• Repeat the same removal and installation steps for the other headlight bulb.
• Make sure both bulbs are fully seated and locked.

Step 5: Reassemble and test

• Reinstall any covers, ducts, or clips you removed.
• Close the hood.
• Turn the headlights on and verify both low beams work.
• Check that the beam pattern looks even on both sides.

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✅ After Repair

• Confirm both headlights illuminate at the same brightness.
• If one side does not work, recheck the connector and bulb seating.
• If the lamp still does not work, inspect the fuse and wiring for that circuit.

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💰 DIY vs Shop Cost

Shop Cost: $120-$240 (parts + labor)

DIY Cost: $30-$80 (parts only)

You Save: $90-$160 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.5-1 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.