🔧 TLX - Front Turn Signal Bulb Replacement

On your TLX, the front turn signal bulb is accessed from inside the front wheel well (behind the fender liner). You’ll remove a few fasteners, reach the bulb socket, swap the bulb, and reassemble.

Difficulty Level: Beginner | Estimated Time: 0.5-1.0 hours

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⚠️ Safety & Precautions

• ⚠️ Park on level ground and set the parking brake before lifting the car.
• ⚠️ Support the car with jack stands before working in the wheel well.
• ⚠️ Let the headlight area cool if the lights were recently on.
• ⚠️ Avoid touching the glass of the new bulb with bare fingers (skin oil can shorten bulb life).
• ⚠️ Battery disconnect is not required for this bulb swap.

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🔧 Required Tools

You'll need the following tools for this repair:

• Floor jack (rated 2-ton minimum)
• Jack stands (rated 2-ton minimum)
• Wheel chocks
• 21mm socket
• 1/2" drive ratchet
• Torque wrench (20-150 ft-lbs range)
• Phillips screwdriver #2
• Trim clip removal tool
• Work light
• Nitrile gloves
• Safety glasses

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Front turn signal bulb (amber) - Qty: 2 Replace in pairs
• Fender liner clips - Qty: 4-8 Optional spares

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📋 Before You Begin

• Park on a flat surface, shift to Park, and set the parking brake.
• Place wheel chocks behind the rear tires.
• Turn the steering wheel toward the side you’re working on (more room in the wheel well).
• Tip: Do one side at a time.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Loosen the front wheel lug nuts

• Use a 21mm socket and 1/2" drive ratchet to loosen the lug nuts about 1/2 turn while the wheel is still on the ground.

Step 2: Lift and support the front corner

• Use a floor jack to lift the front corner you’re working on.
• Place a jack stand under a solid lift point and lower the car onto it.
• A jack stand is a safety support—never rely on the jack.

Step 3: Remove the front wheel

• Use a 21mm socket and 1/2" drive ratchet to remove the lug nuts.
• Remove the wheel and set it flat under the rocker area as an extra safety backup.

Step 4: Open the fender liner access area

• Use a Phillips screwdriver #2 and trim clip removal tool to remove the screws/clips holding the front section of the fender liner (the plastic inner wheel well).
• Pull the liner back just enough to reach behind the headlight area.
• Tip: Use a work light so you can see the sockets.

Step 5: Locate the front turn signal bulb socket

• Use a work light and look behind the headlight housing from the wheel well.
• Find the turn signal bulb socket (it will be a twist-lock socket going into the headlamp).

Step 6: Remove the bulb socket

• Grip the socket firmly by hand (use nitrile gloves for better grip).
• Turn the socket counterclockwise about 1/4 turn and pull it straight out.

Step 7: Replace the bulb

• Pull the old bulb straight out of the socket.
• Install the new bulb by pushing it straight into the socket until fully seated.
• Do not touch the bulb glass with bare fingers; keep nitrile gloves on.

Step 8: Reinstall the socket and test

• Insert the socket back into the headlight housing, then twist clockwise to lock.
• Before reassembling the liner, turn the ignition to ON and switch on the turn signal to confirm it flashes normally.
• If it doesn’t work, remove the socket and re-seat the bulb firmly.

Step 9: Reinstall the fender liner

• Reposition the liner and reinstall the clips/screws using the trim clip removal tool and Phillips screwdriver #2.
• Make sure the liner edge sits correctly so it won’t rub the tire.

Step 10: Reinstall the wheel and torque the lug nuts

• Install the wheel and hand-thread all lug nuts.
• Snug the lug nuts in a star pattern using the 21mm socket and 1/2" drive ratchet.
• Lower the car off the jack stand using the floor jack.
• Final-tighten with a torque wrench: Torque to 108 Nm (80 ft-lbs) in a star pattern.

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✅ After Repair

• Turn on the hazards and verify both front turn signals flash at the same speed.
• Check that the fender liner is secure and not contacting the tire during a slow steering lock-to-lock turn.
• Recheck lug nut torque after a short drive: Torque to 108 Nm (80 ft-lbs).

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💰 DIY vs Shop Cost

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

DIY Cost: $10-$40 (parts only)

You Save: $70-$120 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.

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🎯 Ready to get started?

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