It depends on trim and headlight type. In most US-spec Civics with halogen headlights, the bulbs are typically H11 for low beams and 9005 for high beams, with H11 commonly used for fog lights. Models equipped with LED headlights use LED modules instead of replaceable bulbs.
The 2019 Civic was offered with different headlight configurations across trims and markets. This article outlines the common sizes and how to verify yours, plus guidance for LED-equipped models where bulb sizes don’t apply.
Headlight bulb sizes by configuration
Halogen headlights (most trims)
For the common US-market Civics that use halogen projectors, the following bulb sizes apply to the main headlights and fog lights. Use this as a starting point, but always confirm by checking the original bulb or the owner's manual.
- Low beam: H11
- High beam: 9005 (HB3)
- Fog lights: H11 (if your model has halogen fog lights)
Note: Some regional variants may differ; fog light sizes can vary if your car has a different equipment package.
LED headlights (availability varies by trim)
Some higher trims use LED headlights. In these configurations, there are no halogen replaceable bulbs for the main headlights, and the replacement process typically involves the LED module or entire headlight assembly rather than a standard bulb size.
- Main headlights: LED modules (no replaceable bulb size)
- High/low beam: integrated LEDs (no standard bulb size)
- Fog lights: may still be halogen or LED depending on trim
If your Civic has LED headlights, consult the owner's manual or dealer for service options and bulb compatibility for any accessories or fog lights, as these vary by market and package.
How to verify the exact bulb size for your car
To ensure you buy the correct bulbs, verify using one of these methods: consult the owner’s manual; inspect the bulb directly (the base often has markings); use Honda’s official parts finder or a trusted auto parts retailer; or contact a Honda service center. If you’re replacing bulbs yourself, work carefully to avoid damaging the headlight housing or electrical connectors.
Summary
For a 2019 Honda Civic, the bulb sizes most commonly used with halogen headlights are H11 for low beams, 9005 for high beams, and H11 for fog lights. LED-equipped models rely on LED modules rather than replaceable bulbs, and exact configurations can vary by trim and market. Always confirm with the owner’s manual or a dealer to ensure you get the correct replacement for your specific car.