How to Replace Both Taillight Bulbs on a 2012 Honda Accord (Left & Right)
Step-by-step trunk access instructions with required tools, correct bulb tips, and post-repair light testing
How to Replace Both Taillight Bulbs on a 2012 Honda Accord (Left & Right)
Step-by-step trunk access instructions with required tools, correct bulb tips, and post-repair light testing


🔧 Accord - Taillight Bulb Replacement
You can replace the left and right taillight bulbs from inside the trunk by removing a small access cover and swapping the bulb in the socket. This is usually quick and doesn’t require removing the whole taillight assembly.
Difficulty Level: Beginner | Estimated Time: 0.5-1.0 hours
⚠️ Safety & Precautions
- ⚠️ Turn the light switch OFF and remove the key before starting.
- ⚠️ Let bulbs cool for 10 minutes; they can burn you.
- ⚠️ Wear gloves and don’t touch the new bulb’s glass with bare fingers (skin oil can shorten bulb life).
- ⚠️ If you must use the brake pedal to test, use a helper or brace the pedal safely.
🔧 Required Tools
You'll need the following tools for this repair:
- Safety glasses
- Nitrile gloves
- Plastic trim removal tool
- Flathead screwdriver (small)
- Flashlight
🔩 Required Parts
HowToo sells all the parts you need for this repair:
- Taillight bulb (left/right, outer lamp) - Qty: 2
- Optional: Turn signal bulb (if your “taillight” issue is actually the blinker) - Qty: 2
📋 Before You Begin
- Park on level ground and open the trunk.
- Confirm which function is out: running lights (tail), brake lights (stop), or turn signals.
- Have a helper ready to press the brake pedal during testing (or back up near a wall to see reflections).
🔨 Step-by-Step Instructions
Follow these steps in order:
Step 1: Access the taillight bulb area (left side)
- Use a flashlight to look along the left trunk side trim behind the taillight.
- Use a plastic trim removal tool to pop open/remove the small access cover (or gently release the carpeted flap, depending on how your trunk trim is set up).
- Trim tool = plastic pry tool to avoid scratches.
Step 2: Remove the bulb socket
- Find the bulb socket going into the back of the taillight housing (you’ll see wires leading to it).
- Grip the socket and rotate it counterclockwise about 1/4 turn, then pull it straight out.
- If it’s tight, use a nitrile gloves grip and steady the housing with your other hand.
Step 3: Replace the bulb
- Pull the old bulb straight out of the socket.
- Install the new bulb fully into the socket (same orientation as the old one).
- If it’s a glass bulb, avoid touching the glass; wear nitrile gloves.
Step 4: Reinstall the socket and test (left side)
- Insert the socket back into the housing and rotate clockwise to lock.
- Turn the lights ON to check running lights.
- Have a helper press the brake to verify the brake light.
- If it still doesn’t work, remove the bulb and reseat it firmly once.
Step 5: Repeat on the right side
- Repeat Steps 1-4 on the right trunk side using the plastic trim removal tool, flashlight, and nitrile gloves.
Step 6: Refit trunk trim
- Reinstall the access covers/flaps by pressing them back into place by hand.
- If a clip is stubborn, use the flathead screwdriver (small) gently to align it, then press to seat.
✅ After Repair
- Verify all rear lighting functions: tail (parking lights), brake, turn signals, and hazards.
- If one side is still out, the next checks are the bulb socket condition (corrosion/melt), fuse, or wiring at that lamp.
💰 DIY vs Shop Cost
Shop Cost: $60-$150 (parts + labor)
DIY Cost: $10-$40 (parts only)
You Save: $50-$110 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.
🎯 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.

















