🔧 Traverse - Headlight Bulb Replacement

On your Traverse, the “headlight bulbs” usually means the low-beam bulbs (the main headlights). Replacing them is a straightforward job from the engine-bay side of each headlamp housing, but space is tight so take your time.

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

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⚠️ Safety & Precautions

• ⚠️ Turn headlights OFF and let bulbs cool 10 minutes (they get very hot).
• ⚠️ Do not touch new bulb glass with bare fingers; skin oil can shorten bulb life.
• ⚠️ Keep keys out of the vehicle so lights can’t turn on unexpectedly.
• ⚠️ Battery disconnect is not required, but it’s OK to disconnect the negative terminal if you want extra safety.

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🔧 Required Tools

You'll need the following tools for this repair:

• Nitrile gloves
• Safety glasses
• Flashlight
• Trim clip remover
• 10mm socket
• 1/4" ratchet
• 6" socket extension
• Torque wrench (inch-pound)
• Isopropyl alcohol
• Clean lint-free towel

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Low-beam headlight bulb (H11) - Qty: 2
• High-beam headlight bulb (9005) - Qty: 2 (only if replacing high beams too)

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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 locate the rear of each headlamp housing.
• 🧤 Put on nitrile gloves (keeps oils off the bulb).

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Confirm which bulbs you’re replacing

• Use your flashlight to look behind the headlamp.
• The low-beam (H11) is the main headlight used at night.
• The high-beam (9005) is the brighter “brights” bulb.
• If unsure, turn lights on and watch which side is out.

Step 2: Create working room (only if access is tight)

• If a plastic air duct/cover blocks your hand, remove its fasteners using a trim clip remover and/or 10mm socket with a 1/4" ratchet and 6" extension.
• Set clips/bolts aside in a small pile so nothing gets lost.
• If you removed any 10mm bolts, reinstall later and Torque to 89 in-lbs (10 Nm).
• Work slowly—plastic clips break when forced.

Step 3: Remove the electrical connector

• Reach the rear of the headlamp and locate the bulb’s wiring plug.
• Press the lock tab and pull the connector straight off by hand (use nitrile gloves for grip).
• If it’s stuck, gently wiggle—do not pull on the wires.

Step 4: Remove the old bulb

• Hold the bulb base and rotate it counterclockwise about a quarter-turn.
• Pull the bulb straight out of the housing.
• Use your flashlight to confirm the O-ring (rubber seal) came out with the bulb.

Step 5: Install the new bulb (no touching the glass)

• Keep nitrile gloves on and remove the new bulb from its package.
• Align the tabs on the bulb with the slots in the housing, then insert fully.
• Rotate the bulb clockwise until it locks in place.
• If you accidentally touch the glass, clean it with isopropyl alcohol and a clean lint-free towel, then let it dry.

Step 6: Reconnect and reassemble

• Push the wiring connector back on until it clicks (by hand).
• Reinstall any air duct/cover you removed using the 10mm socket, 1/4" ratchet, and trim clip remover.
• If you removed any 10mm bolts, tighten with a torque wrench (inch-pound) to 89 in-lbs (10 Nm).

Step 7: Repeat on the other side

• Do the same steps for the other headlight so brightness and color match.
• Replace bulbs in pairs for even light output.

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✅ After Repair

• 🔦 Turn the headlights ON and verify both low beams work.
• Switch to high beams and verify both high beams work (if replaced).
• Walk around the front and confirm the beams look even and not flickering.
• If a bulb doesn’t light, turn lights OFF and re-check the connector is fully seated.

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💰 DIY vs Shop Cost

Shop Cost: $120-$250 (parts + labor)

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

You Save: $90-$130 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.

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Quick question so I point you to the exact bulbs: Are you replacing the low beams (H11) only, or low + high beams (H11 + 9005)?