2012 Ford Fiesta Light Bulbs Types:
| Bulb | Type |
| Headlamp (low beam) | H11B |
| Headlamp (high beam) | HB3-9005LL |
| Headlamp (park/turn) | 3157NAK (amber) |
| Headlamp (side marker) | 168 |
| 4-door rear bodyside lamp (park/turn/sidemarker) | 3157K |
| 4-door rear deck lamp (backup) | 921 |
| 5-door rear lamp (stop/reverse) | 3157K |
| 5-door rear lamp (turn) | 3157A (amber) |
| License plate lamp | W5W |
| 5–door high-mounted brake lamp | LED |
| 4–door high-mounted brake lamp | W5W |
| Interior lamp | W6W |
| Reading lamp | W5W |
| Luggage compartment lamp | W5W |
