How to Replace Front Turn Signal Bulbs on a 2013-2018 Mazda CX-5
Step-by-step bulb swap from behind the headlight with tools list, safety tips, and testing steps
How to Replace Front Turn Signal Bulbs on a 2013-2018 Mazda CX-5
Step-by-step bulb swap from behind the headlight with tools list, safety tips, and testing steps for 2013, 2014, 2015, 2016, 2017, 2018
đź”§ CX-5 - Front Turn Signal Bulb Replacement
You’ll replace the front turn signal bulb(s) from behind the headlight housing in the engine bay. This is usually a quick job—most of the time it’s just removing the bulb socket, swapping the bulb, and testing operation.
Difficulty Level: Beginner | Estimated Time: 0.3-0.5 hours
⚠️ Safety & Precautions
- ⚠️ Work on a cool engine and cool headlights to avoid burns.
- ⚠️ Turn the ignition OFF and remove the key before reaching behind the headlight.
- ⚠️ Don’t touch the glass part of the new bulb (skin oils can shorten bulb life). If you do, wipe it with isopropyl alcohol and a clean paper towel.
- ⚠️ If you need more room and remove any intake snorkel/clips, reinstall them securely so nothing can contact the radiator fan.
đź”§ Required Tools
You'll need the following tools for this repair:
- Nitrile gloves
- Safety glasses
- Small flathead screwdriver
- Plastic trim removal tool
- Flashlight
🔩 Required Parts
HowToo sells all the parts you need for this repair:
- Front turn signal bulb (amber) - Qty: 2
đź“‹ Before You Begin
- Park on level ground, shift to neutral, and set the parking brake.
- Turn the lights OFF and remove the key.
- Open the hood and set a flashlight where it can shine behind the headlight.
🔨 Step-by-Step Instructions
Follow these steps in order:
Step 1: Confirm the correct side
- Turn the hazard lights ON briefly to confirm which front turn signal is out, then turn them OFF.
- Do one side at a time.
Step 2: Access the back of the headlight
- From the engine bay, look behind the headlight on the side you’re replacing.
- Use a flashlight to find the turn signal bulb socket (the “socket” is the plastic holder the bulb locks into).
- If a plastic cover/air snorkel blocks access, use a plastic trim removal tool to pop up any plastic clips, and use a small flathead screwdriver only if a clip center pin is stubborn.
Step 3: Remove the turn signal bulb socket
- Grip the bulb socket firmly by hand (wear nitrile gloves for better grip).
- Twist the socket counterclockwise about a quarter turn, then pull it straight out.
Step 4: Remove the old bulb from the socket
- Pull the bulb straight out of the socket by hand.
- If it’s stuck, gently wiggle it while pulling—don’t crush the glass.
Step 5: Install the new bulb
- With nitrile gloves on, push the new bulb straight into the socket until fully seated.
- Don’t force it—line it up and press.
Step 6: Reinstall the socket into the headlight
- Insert the socket into the headlight opening, making sure it sits flush.
- Twist clockwise about a quarter turn until it locks.
Step 7: Test operation
- Turn the ignition ON and switch the turn signal ON for that side.
- Verify the front turn signal flashes normally (not rapid “hyper-flash”).
- If you removed any clips/covers, reinstall them using the plastic trim removal tool and small flathead screwdriver as needed.
âś… After Repair
- Walk around and confirm front and rear signals flash at a normal speed on both sides.
- If the new bulb doesn’t light, remove the socket and re-seat the bulb, then check the socket is fully locked.
- If it still doesn’t work, the next checks are the fuse, socket corrosion, or wiring at the headlight.
đź’° DIY vs Shop Cost
Shop Cost: $60-$150 (parts + labor)
DIY Cost: $5-$30 (parts only)
You Save: $55-$120 by doing it yourself!
Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.3-0.5 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.
Guide for Turn Signal Light Bulb replace for these Mazda vehicles
| Year Make Model | Sub Model | Engine | Body Style |
|---|---|---|---|
| 2018 Mazda CX-5 | - | - | - |
| 2017 Mazda CX-5 | - | - | - |
| 2016 Mazda CX-5 | - | - | - |
| 2015 Mazda CX-5 | - | - | - |
| 2014 Mazda CX-5 | - | - | - |
| 2013 Mazda CX-5 | - | - | - |


















