🔧 Altima - Headlight Bulb Replacement

On your Altima, the “headlight bulbs” can mean the low beams (the main headlights) and/or the high beams (brights). Replacement is done from behind each headlight housing in the engine bay, and the big goal is to avoid touching the glass and to fully lock the bulb in place so it doesn’t flicker.

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

Quick check (so I match the exact bulbs): Are you replacing low beams, high beams, or both? Also, do your headlights say Xenon/HID anywhere on the lens, or are they regular halogen?

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⚠️ Safety & Precautions

• ⚠️ Turn lights OFF and let bulbs cool before touching them.
• ⚠️ Do not touch the new bulb’s glass with bare fingers (oil can shorten bulb life). Use nitrile gloves.
• ⚠️ Make sure the bulb is fully locked; a loose bulb can overheat the connector.
• ⚠️ If your Altima has HID/Xenon, do not open/repair the ballast; high voltage is present.

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🔧 Required Tools

You'll need the following tools for this repair:

• Nitrile gloves
• Safety glasses
• Flashlight
• 10mm socket
• 1/4" ratchet
• Trim clip tool
• Small flathead screwdriver

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Low beam headlight bulbs - Replace in pairs - Qty: 2
• High beam headlight bulbs - Replace in pairs - Qty: 2

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📋 Before You Begin

• Park on level ground, shift to Park, and turn the headlights OFF.
• Open the hood and use a flashlight to locate the rear of each headlight housing.
• Lay a towel over nearby painted areas so you don’t scratch anything while reaching in.
• Tip: Replace bulbs in pairs for matching color.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Identify which bulb you’re changing (low vs high)

• Use a flashlight to look behind the headlight housing.
• The rear covers/connectors are close together—confirm you’re on the correct socket before twisting anything.
• Tip: Low beam is usually the larger projector lens.

Step 2: Create working room (only if your hand doesn’t fit)

• If the air inlet duct or nearby plastic trim blocks access, remove the fasteners using a trim clip tool and/or small flathead screwdriver.
• Loosen any 10mm bolts you see holding a duct/cover using a 10mm socket and 1/4" ratchet, then move the piece aside (do not force it).
• Tip: More room prevents broken bulb locks.

Step 3: Unplug the bulb connector

• Grip the connector (not the wires) and pull straight back.
• If there’s a locking tab, press it with your thumb or use a small flathead screwdriver gently to release it.

Step 4: Remove the old bulb

• Twist the bulb base counterclockwise by hand and pull it straight out.
• Set the old bulb aside where it won’t break.

Step 5: Install the new bulb (do not touch the glass)

• Put on nitrile gloves.
• Insert the new bulb into the housing, aligning the tabs, then twist clockwise until it stops (locked).
• If you accidentally touch the glass, wipe it with rubbing alcohol and let it dry before installing.

Step 6: Reconnect and test

• Plug the connector back in until it clicks/feels fully seated.
• Turn the headlights on and verify the replaced side works (low and/or high beam as applicable).

Step 7: Repeat on the other headlight

• Repeat Steps 1–6 for the other side.
• Reinstall any ducts/covers you moved using a 10mm socket, 1/4" ratchet, and any clips with a trim clip tool.

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✅ After Repair

• Verify both headlights match in color and brightness (replace in pairs if one looks different).
• Switch between low beams and high beams to confirm correct bulbs were changed.
• At night, check headlight aim; if the beam looks wildly off, the bulb may not be fully seated/locked.

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💰 DIY vs Shop Cost

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

DIY Cost: $30-$120 (parts only)

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.