2023 Honda Civic Bulb Sizes: Headlight, Tail, Fog, and Interior

Quick reference

The 2023 Honda Civic, across its various trims (LX, Sport, EX, Touring, Si, Type R), offers a mix of lighting technologies. Lower trims typically feature halogen bulbs for headlights and fog lights, while higher trims and specific packages (like the Touring) often come equipped with full LED headlamps and fog lights from the factory. It's crucial to check your specific vehicle's trim level to determine the exact bulb type and size.

For instance, the LX and Sport trims often utilize H11 for low beams and 9005 for high beams in halogen form. On the other hand, EX, Touring, Si, and Type R models are generally equipped with integrated LED headlight units that do not have user-replaceable bulbs for the low or high beams. This also applies to the DRLs, brake lights, and tail lights, which are almost universally integrated LED modules across the lineup, meaning you replace the entire assembly if a component fails rather than just a bulb.

Front and rear turn signals are commonly 7440A incandescent bulbs, providing a straightforward replacement path. Reverse lights typically use 921 bulbs, and license plate lights are often 168 bulbs. Side marker lights on the front are usually 194 bulbs. Inside the cabin, the dome light often uses a 31MM fuse-type LED bulb, and map lights are typically 168 LED bulbs.

LED vs halogen upgrade considerations

Upgrading from halogen to LED bulbs in your 2023 Honda Civic requires careful consideration, especially for headlights and fog lights. While LEDs offer superior brightness, longevity, and a whiter light output, they can introduce compatibility issues.

CANBUS Errors: Modern vehicles like the Civic use a CANBUS (Controller Area Network Bus) system to monitor electrical components. Halogen bulbs draw more power than LEDs. When you install LED bulbs, the lower power draw can trigger a