🔧 Altima - Headlight Bulb Replacement

You’ll replace the bulbs inside the headlamp assemblies from under the hood. The key is getting access, twisting the old bulb out, and installing the new bulb without touching the glass (finger oils can shorten bulb life).

Difficulty Level: Beginner | Estimated Time: 0.5-1.5 hours

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⚠️ Safety & Precautions

• ⚠️ Turn the lights OFF and let bulbs cool 10-15 minutes (hot bulbs can burn you).
• ⚠️ Do not touch the new bulb’s glass with bare fingers; use gloves.
• ⚠️ Keep tools away from the 12V battery terminals to avoid shorting.
• ⚠️ If you choose to disconnect the 12V battery, you may lose radio presets.

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🔧 Required Tools

You'll need the following tools for this repair:

• 10mm socket
• 1/4" drive ratchet
• 6" socket extension
• Trim clip removal tool
• Flashlight
• Nitrile gloves
• Safety glasses

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Low beam headlight bulb - Replace in pairs (left + right) - Qty: 2
• High beam headlight bulb - Replace in pairs (left + right) - Qty: 2
• Dielectric grease - Qty: 1

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📋 Before You Begin

• Park on level ground, shift to Park, and set the parking brake.
• Turn the headlight switch OFF and remove the key/fob from the car.
• Open the hood and use a flashlight to locate the back of each headlamp.
• Tip: Read the bulb type printed on the old bulb.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Identify the bulbs you’re replacing (low vs high)

• Use a flashlight and look behind the headlamp assembly.
• Low beam and high beam are separate bulbs; each has its own electrical connector.
• If you’re unsure, remove one bulb and read the type number stamped on its base.

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

• On the passenger side, you may need to loosen/remove the intake snorkel or air ducting for room.
• Use a trim clip removal tool to pop plastic clips straight up (a trim tool is a forked pry tool that lifts clips without breaking them).
• Use a 10mm socket, 1/4" drive ratchet, and 6" extension to remove any 10mm bolts holding the duct/brackets.
• Reinstall bolts snugly at the end: Torque to 6 Nm (53 in-lbs)

Step 3: Remove the electrical connector from the bulb

• Put on nitrile gloves and safety glasses.
• Press the connector lock tab and pull the connector straight off the bulb.
• If it’s stuck, wiggle gently—do not pull on the wires.

Step 4: Remove the old bulb

• Grip the bulb base and rotate it counterclockwise about 1/8 to 1/4 turn.
• Pull the bulb straight out of the headlamp housing.
• Use a flashlight to confirm the O-ring/seal came out with the bulb (it should).

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

• Keep nitrile gloves on and handle the new bulb by the base only.
• Align the tabs on the bulb with the slots in the housing, then insert fully.
• Rotate clockwise to lock it in place (it should stop firmly).

Step 6: Reconnect the connector and protect it

• Add a very small amount of dielectric grease to the connector seal area (not on the bulb glass).
• Push the connector onto the bulb until it clicks/fully seats.

Step 7: Repeat for the other bulb(s) and the other side

• Repeat Steps 3-6 for the remaining bulb on that side (high or low), then do the other headlamp.
• Tip: Replace left and right as a pair.

Step 8: Reinstall any ducting/brackets you moved

• Reinstall intake ducting and clips using the trim clip removal tool and your hands.
• Reinstall any 10mm bolts using a 10mm socket, ratchet, and extension.
• Tighten bolts: Torque to 6 Nm (53 in-lbs)

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✅ After Repair

• Turn the headlights ON and verify: low beams, high beams, and both sides illuminate.
• Check that each bulb is locked (no flicker when you lightly tap near the housing).
• At night, confirm the beam pattern looks even side-to-side.

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💰 DIY vs Shop Cost

Shop Cost: $120-$300 (parts + labor)

DIY Cost: $30-$140 (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 0.5-1.0 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.