🔧 Headlight Bulbs - Replacement

Replacing both headlight bulbs on your Sentra is a simple under-hood repair. Most of the work is reaching behind each headlamp, unplugging the connector, and swapping the bulb without touching the glass.

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

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⚠️ Safety & Precautions

• Turn the lights off and remove the key before starting.
• Let the bulbs cool completely before touching them.
• Do not touch the glass part of new halogen bulbs with bare fingers.
• Use gloves and safety glasses while working in the engine bay.
• No battery disconnect is required for this job.
• Work on one side at a time.

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🔧 Required Tools

You'll need the following tools for this repair:

• Trim tool
• 10mm socket
• 1/4-inch ratchet
• Short extension
• Gloves
• Safety glasses
• Flashlight

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Headlight bulbs - Replace in pairs - 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 fully.
• Use a flashlight for the tight spaces.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Access the rear of the headlamp

• Open the hood.
• On each side, find the back of the headlight housing behind the bulb dust cover or access cap.
• If a plastic cover blocks access, use the trim tool to release it gently.

Step 2: Remove the old bulb

• Unplug the electrical connector from the bulb by pressing the lock tab and pulling straight back.
• Use your hand to twist the bulb socket counterclockwise and remove it from the housing.
• Pull the old bulb straight out of the socket.

Step 3: Install the new bulb

• Put on gloves before handling the new bulb.
• Insert the new bulb into the socket in the same position as the old one.
• Use your hand to twist the bulb socket clockwise until it locks in place.
• Reconnect the electrical connector until it clicks.
• Do not force the bulb.

Step 4: Repeat on the other side

• Repeat the same removal and installation steps on the second headlight.
• Make sure both bulbs are fully seated and both connectors are locked.

Step 5: Test the lights

• Turn the headlight switch on and check both low beams.
• If equipped, check high beams too.
• Look for a steady, even beam from both sides.

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✅ After Repair

• Close the hood.
• Verify both headlights work with the engine running.
• If one side does not light up, recheck the connector and bulb seating.
• If the beam looks crooked, have the headlight aim checked.

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💰 DIY vs Shop Cost

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

DIY Cost: $20-$60 (parts only)

You Save: $100-$200 by doing it yourself!

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

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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.