Which lights must function properly on a vehicle during the driving skills test?

During the driving skills test, it is essential for brake lights to function properly because they are crucial for communicating your intentions to other drivers on the road. When you press the brake pedal, the brake lights illuminate to signal that you are slowing down or coming to a stop. This is a vital part of safe driving as it helps prevent rear-end collisions by providing clear visibility to vehicles behind you.

The requirement for brake lights emphasizes safety standards that ensure not only the driver's ability to operate the vehicle but also the safety of all road users by ensuring that other drivers can react appropriately. While fog lights, daytime running lights, and parking lights serve important functions, the failure of brake lights can pose a direct risk to the safety of everyone involved in the driving situation. Thus, the focus during the driving skills test is particularly on the lights that have critical implications for safety and communication on the road.