🔧 Taillight Bulbs - Replacement

Your Silverado uses rear lamp bulbs that service the tail, stop, and turn functions. Replacing both sides at the same time keeps the light output even and avoids a second teardown later.

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

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⚠️ Safety & Precautions

• Turn the light switch off and remove the key before starting.
• Let the bulbs cool before touching them. Halogen bulbs get very hot.
• Use a clean glove or the bulb base when installing. Do not touch the glass.
• Work carefully around the tail lamp housing so the plastic tabs do not break.
• Battery disconnect is not required for this job.

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🔧 Required Tools

You'll need the following tools for this repair:

• 7mm socket
• 1/4-inch ratchet
• Trim panel tool
• Gloves
• Safety glasses

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Rear taillight bulb, 3157K - Qty: 2

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📋 Before You Begin

• Park on level ground and set the parking brake.
• Put the transmission in Park.
• Open the tailgate for better access to the lamp screws.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Remove the tail lamp screws

• Open the tailgate.
• Use a 7mm socket and 1/4-inch ratchet to remove the two tail lamp screws on the lamp housing.
• Keep the screws in a small tray.

Step 2: Release the tail lamp assembly

• Use a trim panel tool or your hand to gently pull the tail lamp straight back.
• Work it out of the locating pins without twisting hard.
• Set the lamp on a soft towel so the lens does not get scratched.

Step 3: Remove the bulb socket

• Twist the bulb socket counterclockwise by hand and pull it out of the housing.
• The rear bulb on this truck is a 3157K style bulb.

Step 4: Replace the bulb

• Pull the old bulb straight out of the socket.
• Push the new 3157K bulb into the socket until it seats fully.
• Do not touch the glass part of the bulb with bare fingers.

Step 5: Reinstall the socket and lamp

• Insert the socket back into the tail lamp housing.
• Twist it clockwise by hand until it locks.
• Align the lamp assembly with the body and press it into place.
• Use the 7mm socket to reinstall the two screws.
• Torque to 2-3 Nm (18-27 ft-lbs).

Step 6: Repeat on the other side

• Repeat the same steps for the opposite tail lamp.
• Make sure both bulbs are seated the same way.

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✅ After Repair

• Turn on the parking lights, brake lights, and turn signals to confirm both sides work.
• Check that the tail lamps sit flush with the body.
• If a bulb does not light, remove the socket and reseat the bulb.

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💰 DIY vs Shop Cost

Shop Cost: $90-$180 (parts + labor)

DIY Cost: $10-$30 (parts only)

You Save: $80-$150 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.3-0.8 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.