The **lighting system** of a vehicle has two main functions: **to allow the driver to see the road** and **to ensure that the vehicle is visible to others**. This is crucial both at night and in low visibility conditions.

- **Driver visibility**: The vehicle's lights, such as low and high beams, illuminate the road, helping the driver to identify hazards and obstacles in time. This is essential for safe driving.

- **Visibility for others**: The lights also allow pedestrians and other drivers to see the vehicle. This includes position lights, brake lights, and turn signals, which communicate the driver's intentions and enhance road safety.

- **Maintenance of the lighting system**: It is important to regularly check the lighting system and replace any lamps that are not functioning properly to maintain their effectiveness.

Therefore, the lighting system not only helps the driver to see but is also vital for the vehicle to be seen by others, thus ensuring road safety.