2012 Mazda3 Light Bulbs Types:
| Bulb | Type | Output |
| Interior Lights: | ||
| Trunk light (4 Door) | - | 3W |
| Luggage compartment light (5 Door) | - | 5W |
| Overhead light/Map lights (Front) | - | 8W |
| Overhead light (Rear) | - | 10W |
| Vanity mirror lights | - | 2W |
| Exterior Lights: | ||
| Headlights Halogen High beam | HB3/9005 | 60W |
| Headlights Halogen Low beam | H11 | 55W |
| Headlights Xenon fusion bulb High/Low beam | D2S | 35W |
| Daytime running lights Type A | H8 | 35W |
| Daytime running lights Type B | W21/5W/7443 | 21W |
| Front turn signal lights/Front side-marker lights | 7444NA | 27/8W |
| Parking lights | W5W/4CP | 5W |
| Fog lights | H11 | 55W |
| Side turn signal lights (Integrated with outside mirrors) | LED | - |
| High-mount brake light 4 Door | W21W/1120 | 21W |
| High-mount brake light 5 Door Bulb type | W16W/921 | 18W |
| High-mount brake light 5 Door LED type | LED | - |
| Rear turn signal lights Type A | WY21W/32CP | 21W |
| Rear turn signal lights Type B | W21W/7440 | 21W |
| Brake lights/Taillights (Rear side-marker lights) Bulb type | W21/5W/7443 | 21/5W |
| Brake lights/Taillights (Rear side-marker lights) LED type | LED | - |
| Reverse lights | W21W/7440 | 21W |
| License plate lights | W5W | 5W |
