2019 Acura MDX bulb fitment uses LED lighting for both the low-beam and high-beam headlights. The fog lights, daytime running lights, front turn signals, parking lights, and front side markers are also LED applications, so no replaceable bulb size is listed for those positions.
The rear lighting combines LED and replaceable bulbs. The reverse lights and rear turn signals use 7440 bulbs, while the brake lights use the red 7440R. The center stop light, tail lights, rear side markers, and license plate lights are LED.
- Step lights: DE3022
- Glove box light: 2721
- Interior light: 158
- Trunk light: 168 or 917
- Vanity light: 6615F
The dome, map, floor, door-mirror, and other listed exterior accent lights use LED lighting. Confirm the existing bulb and socket before ordering, particularly for the trunk application, which has two listed fitments.