🔧 Rear Turn Signal Bulb - Replacement

Replacing the rear turn signal bulb on your Silverado is a simple tail lamp service. You’ll remove the rear lamp assembly, twist out the bulb socket, and swap in the new bulb. On this truck, the rear turn/stop bulb style can vary by lamp build, so match the new bulb to the number printed on the old one before installing.

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

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⚠️ Safety & Precautions

• Turn the lights off and let the bulbs cool before touching them.
• Use gloves so skin oil does not shorten bulb life.
• Support the tail lamp carefully; do not pry hard on the lens.
• No battery disconnect is required for this repair.

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🔧 Required Tools

You'll need the following tools for this repair:

• 10mm socket
• Ratchet
• Short extension
• Trim panel tool
• Gloves
• Safety glasses

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Rear turn signal bulb - Qty: 1
• Rear turn signal bulb - Qty: 2 if replacing both sides

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📋 Before You Begin

• Park on level ground and shift to Park.
• Set the parking brake.
• Open the tailgate for easier access to the tail lamp fasteners.
• If one rear turn bulb failed, consider replacing the bulb on the opposite side too for even light output.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Open the tailgate

• Lower the tailgate fully to access the tail lamp screws.
• Wear gloves before handling the lamp assembly.

Step 2: Remove the tail lamp fasteners

• Use a 10mm socket, ratchet, and short extension to remove the tail lamp fasteners.
• Keep the fasteners in a safe place.

Step 3: Remove the tail lamp assembly

• Pull the tail lamp straight back to release the locating pins.
• Use a trim panel tool only if the lamp is stuck.
• Pull straight back, not sideways.

Step 4: Remove the bulb socket

• Twist the rear turn signal bulb socket counterclockwise and pull it out of the lamp housing.
• Do not twist the lens itself.

Step 5: Replace the bulb

• Press the bulb in slightly and twist it out of the socket.
• Install the new bulb by aligning the tabs, pressing it in, and twisting it into place.
• Make sure the bulb is fully seated.

Step 6: Reinstall the socket and lamp

• Insert the bulb socket back into the housing and twist it clockwise to lock it.
• Set the tail lamp back into position and align the locating pins.
• Reinstall the fasteners with the 10mm socket, ratchet, and short extension.
• Torque to 9 Nm (80 in-lbs).

Step 7: Test the turn signal

• Turn the ignition on and activate the rear turn signal.
• Check that the bulb flashes normally and the lens is secure.
• Repeat on the other side if replacing both bulbs.

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✅ After Repair

• Check the brake lights, running lights, and hazard flashers to confirm everything works.
• Look at the lamp from outside the truck to make sure it sits flush.
• If the new bulb does not light, remove it and verify the bulb type matches the old one.

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💰 DIY vs Shop Cost

Shop Cost: $80-$160 (parts + labor)

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

You Save: $70-$130 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.