How to Replace Both Headlight Bulbs on a 2020 Mazda CX-5 (Low Beam/High Beam)
Step-by-step bulb access guide with required tools/parts, safety tips, and post-install testing
How to Replace Both Headlight Bulbs on a 2020 Mazda CX-5 (Low Beam/High Beam)
Step-by-step bulb access guide with required tools/parts, safety tips, and post-install testing
🔧 CX-5 - Headlight Bulb Replacement
To replace “both headlight bulbs,” we need to access each headlamp from inside the engine bay (usually behind the headlight housing). The exact bulb type and steps change depending on whether you’re replacing the low beams, high beams, or another bulb inside the headlight.
Difficulty Level: Beginner | Estimated Time: 0.5-1.5 hours
⚠️ Safety & Precautions
- ⚠️ Turn the lights OFF and let bulbs cool before touching.
- ⚠️ Do not touch the glass of a halogen bulb with bare fingers (skin oil shortens bulb life).
- ⚠️ Support the hood securely; keep loose clothing away from moving parts.
- ⚠️ Battery disconnect is not usually required, but keep the headlight switch OFF while working.
🔧 Required Tools
You'll need the following tools for this repair:
- Nitrile gloves
- Safety glasses
- Flashlight
- Trim clip removal tool
- Flathead screwdriver
- 10mm socket
- 1/4" ratchet
- 6" extension
🔩 Required Parts
HowToo sells all the parts you need for this repair:
- Headlight bulb (left) - Qty: 1
- Headlight bulb (right) - Qty: 1
đź“‹ Before You Begin
- Park on level ground, shift to Park, and set the parking brake.
- Turn the headlight switch to OFF and remove the key/fob from the vehicle.
- Open the hood and use a flashlight to locate the rear covers/connectors behind each headlight.
🔨 Step-by-Step Instructions
Follow these steps in order:
Before I continue: Which bulbs are you replacing on your CX-5?
- Low beam bulbs (the main headlights), or high beam bulbs?
- Also—are your headlights halogen with replaceable bulbs, or LED (often the whole headlamp is not a simple bulb swap)?
Reply “low beam halogen” or “high beam halogen”, etc.
âś… After Repair
- Turn headlights ON and confirm both sides work.
- Verify the beam pattern looks even left-to-right.
- If one side doesn’t light, turn OFF and re-check the connector is fully seated.
đź’° DIY vs Shop Cost
Shop Cost: $120-$300 (parts + labor)
DIY Cost: $30-$120 (parts only)
You Save: $90-$180 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.
