🔧 Highlander - Headlight Bulb Replacement (Both Sides)

This job replaces the bulbs inside your headlight housings so you can see clearly at night and stay safe/legal. On your Highlander, the bulbs are accessed from behind the headlight assembly under the hood—no bumper removal needed for the common bulb types.

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

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⚠️ Safety & Precautions

• ⚠️ Turn the lights OFF and let bulbs cool 10+ minutes; they get extremely hot.
• ⚠️ Wear nitrile gloves; skin oil on halogen glass can shorten bulb life.
• ⚠️ Do not touch the new bulb’s glass. If you do, clean with isopropyl alcohol and a lint-free towel.
• ⚠️ Keep ignition OFF; avoid moving fans/belts under the hood.
• 🔋 Battery disconnect is not required for this bulb swap.

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🔧 Required Tools

You'll need the following tools for this repair:

• Nitrile gloves
• Safety glasses
• Flashlight
• Trim clip removal tool
• Small flathead screwdriver
• Isopropyl alcohol
• Lint-free shop towels

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Low beam headlight bulb (H11 halogen) - Qty: 2
• High beam headlight bulb (9005 halogen) - Qty: 2

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📋 Before You Begin

• Park on level ground, shift to Park, and set the parking brake.
• Open the hood and use a flashlight to identify the rear covers/connectors on each headlight housing.
• Replace bulbs in pairs for matching color.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Assumption: “Headlight bulbs” means the main halogen low beams (H11). High beams are also listed below (9005) in case that’s what you meant.

Step 1: Turn everything off and cool the bulbs

• Turn the headlight switch OFF and remove the key/fob from the vehicle.
• Wait at least 10 minutes for the bulbs to cool.
• Put on nitrile gloves and safety glasses.

Step 2: Access the back of the driver-side headlight

• Use a flashlight to locate the bulb sockets on the back of the headlight assembly.
• If a plastic air guide/cover blocks your hand, use a trim clip removal tool (or small flathead screwdriver) to pop the clips up and move the piece aside.
• A “trim clip” is a plastic fastener that holds panels in place; it pops out instead of unscrewing.

Step 3: Replace the low beam bulb (H11) on the driver side

• Find the low beam socket (typically the larger/center rear area of the housing).
• Press the electrical connector tab and pull the connector straight off the bulb using your gloved hand.
• Rotate the bulb counterclockwise about 1/4 turn, then pull it straight out.
• Install the new H11 bulb into the housing and rotate clockwise to lock.
• Reconnect the electrical connector until it clicks.

Step 4: Replace the high beam bulb (9005) on the driver side (if needed)

• Locate the high beam socket (often closer to the inboard side of the housing).
• Use your gloved hand to press the connector tab and pull the connector off.
• Twist the bulb counterclockwise about 1/4 turn and remove it.
• Install the new 9005 bulb, twist clockwise to lock, and reconnect the connector.

Step 5: Repeat the same bulb replacement on the passenger side

• Use the flashlight to identify the matching low beam (H11) and high beam (9005) positions.
• Repeat the same unplug → twist out → twist in → plug in steps.
• Take a photo before removal for reference.

Step 6: If you accidentally touched the glass, clean it

• Moisten a lint-free shop towel with isopropyl alcohol.
• Wipe the bulb glass, then let it air dry before turning lights on.

Step 7: Reinstall any covers or clips you removed

• Reposition any air guides/covers.
• Push trim clips back in by hand; use the trim clip removal tool only if needed to align them.

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✅ After Repair

• Turn headlights ON and verify both low beams work.
• Switch to high beams and verify both high beams work.
• Walk around the front and confirm both sides match in brightness and color.
• If a bulb doesn’t light: turn lights OFF, re-check the connector is fully clicked and the bulb is fully locked.

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💰 DIY vs Shop Cost

Shop Cost: $120-$260 (parts + labor)

DIY Cost: $30-$120 (parts only, depends on bulb brand/type)

You Save: $90-$140 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?

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.