For the 2011 Ford Flex, both the low-beam and high-beam headlights use the same bulb type based on the headlight configuration. Models with halogen headlights use H13 bulbs for both functions, while models with HID headlights use D3S bulbs for both low and high beam. Confirm the headlight type before ordering.
- Fog lights: H11 LED or H16 LED
- Front turn signal and parking light: 3457A
- Reverse light: 921
- License plate light: 6418
- Dome and trunk lights: 578
Several rear and marker-light applications also vary with the headlight configuration. With halogen headlights, the brake light is 4157R, the rear turn signal is 4157, and front and rear side markers use 168NA and 194NA respectively. HID-equipped models use LED versions for these applications. Tail-light fitment includes 168 and 917 with halogen headlights, LED with HID headlights, and 4157R as an additional listed option.