🔧 Taillight Bulbs - Bulb Replacement

On your Tundra, the rear lamp bulbs are replaced from inside the taillight housing after removing the assembly from the bed side. This is a simple job, but take care not to crack the lens or cross-thread the bulb sockets.

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

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⚠️ Safety & Precautions

• Turn the ignition off and switch the lighting switch off before starting.
• Let the bulbs cool before touching them; hot bulbs can burn your fingers.
• Use only the parking brake and keep the truck on level ground.
• If your taillamps are factory LED units, the bulb itself is not serviceable and the lamp assembly must be replaced.
• 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
• Extension
• Trim panel tool
• Gloves
• Safety glasses

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Rear stop/taillight bulb - Qty: 2
• Bulb socket seals - Qty: 2

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📋 Before You Begin

• Park on level ground and set the parking brake.
• Turn the headlight switch to OFF.
• Open the tailgate for easier access to the taillight mounting bolts.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Open the tailgate and locate the taillight fasteners

• Open the tailgate and look at the inside edge of the taillight assembly.
• Use a 10mm socket and ratchet to remove the taillight retaining bolts.
• Keep the bolts in a safe place.

Step 2: Remove the taillight assembly

• Pull the taillight straight back to release the locating pins.
• If it sticks, use a trim panel tool gently at the edge.
• Do not pry on the lens hard.

Step 3: Remove the bulb sockets

• Twist each bulb socket counterclockwise by hand and pull it out of the housing.
• If needed, use a gloved hand for a better grip.

Step 4: Replace the bulbs

• Remove the old bulb from each socket by pulling it straight out.
• Install the new bulb by pressing it straight into the socket.
• Make sure the bulb sits fully seated and straight.

Step 5: Reinstall the sockets and taillight

• Insert each socket back into the taillight housing and twist clockwise to lock it.
• Align the taillight pins with the body and push the assembly into place.
• Reinstall the 10mm bolts and tighten them snugly.
• Torque to 5 Nm (44 in-lbs).

Step 6: Test the lights

• Turn the parking lights on and confirm both taillights work.
• Press the brake pedal and check both brake lights.
• Have someone verify the turn signals if your bulbs are shared with that function.

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✅ After Repair

• Check that the taillight lenses sit flush with the body.
• Verify there is no moisture inside either lamp.
• If one bulb still does not work, inspect the socket contacts and fuse.

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💰 DIY vs Shop Cost

Shop Cost: $120-$220 (parts + labor)

DIY Cost: $20-$40 (parts only)

You Save: $100-$180 by doing it yourself!

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