In most Mazda CX-3 models with halogen headlights, the low-beam bulb is H11 and the high-beam bulb is 9005. If your CX-3 uses LED or HID headlights, there isn’t a simple replace-the-bulb option—the module or entire headlight assembly may require service.
The CX-3’s headlight setups vary by year, market and trim. This article outlines the common configurations, how to verify your exact configuration, and what to expect if your vehicle uses non-halogen headlights.
Overview of common headlight configurations
The CX-3’s lighting system has changed across model years and regions. The following outlines the most frequently encountered arrangements in CX-3s sold in North America and elsewhere.
- Halogen headlights (the most common setup on earlier CX-3 models): Low beam typically H11; high beam typically 9005 (HB3). Fog lights, when equipped, are often H11 but can vary by market.
- LED headlights (present on some trims/markets): The headlights use LED modules rather than replaceable bulbs; individual LED bulbs are not user-replaceable. If an LED module fails, replacement may involve the entire headlamp unit or module from Mazda.
- HID headlights (less common): If the CX-3 is equipped with HID, the system uses HID bulbs with a ballast; replacement generally requires service by a technician, and some parts are not consumer-serviceable.
Bottom line: the typical CX-3 setup remains halogen with H11 low beams and 9005 high beams, but LED/HID configurations exist in some markets and affect maintenance and replacements.
How to verify the exact bulb for your CX-3
To ensure you order the correct bulb for your exact vehicle, use these steps.
- Check the owner's manual's bulb replacement section for your model year and market.
- Inspect the headlight housing and, if accessible, the bulb for markings such as H11 or 9005.
- Use Mazda’s official parts lookup or contact a dealer with your VIN to confirm the exact bulb type installed on your vehicle.
- If your CX-3 uses LED or HID headlights, refer to the manual for replacement guidance or consider professional service for headlight work.
Because lighting configurations can vary by trim and regional spec, verifying with official sources is the safest way to ensure the correct part is used.
Practical notes for halogen bulb replacement
If you have halogen headlights and need to replace the low-beam H11 or high-beam 9005 bulb, handle the new bulb with clean gloves, avoid touching the glass, and ensure the connector is firmly seated after installation. If you’re unsure, a quick visit to a shop or the dealership is advisable.
Summary
The Mazda CX-3 most commonly uses H11 for the low beam and 9005 for the high beam among halogen configurations. LED or HID setups exist in some markets, but they involve different replacement procedures and may not allow simple bulb swaps. Always check the owner’s manual or consult a Mazda dealer (preferably with your VIN) to confirm the exact bulb type for your year, trim, and region.