A map light is a small, focused interior light in a car, typically located on the overhead console near the rearview mirror or on the front pillars. Its primary purpose is to illuminate a specific area, like a map on a passenger's lap or the center console, without causing distracting glare for the driver. Unlike the main dome light that floods the entire cabin with light, a map light provides a targeted beam for tasks requiring direct visibility.
These lights are essential for reading, finding items in a glove box at night, or providing light for a passenger without compromising the driver's night vision. Most modern vehicles have at least two map lights, individually controlled by buttons, allowing the driver and passenger to use them independently. They commonly use low-heat, energy-efficient LED bulbs, which offer a bright, white light and have a long lifespan.
The functionality has evolved with technology. In many cars, map lights are integrated into more sophisticated overhead consoles that may also include controls for the sunroof, garage door opener, and SOS buttons. Some premium vehicles feature "approach lighting," where the map lights activate automatically when you unlock the car with the key fob.
| Feature | Map Light | Dome Light |
|---|
| Primary Function | Task lighting for specific areas | General cabin illumination |
| Location | Overhead console, front pillars | Center of the headliner |
| Beam Focus | Narrow, directed beam | Wide, diffuse light |
| Typical Control | Individual buttons for each light | Single switch for entire cabin |
| Common Use Case | Reading a map, finding a dropped item | Entering/exiting the vehicle, lighting the whole interior |
| Bulb Type | Primarily LED | LED or standard bulb |
