What is the purpose of checking vehicle lights before driving?

The purpose of checking vehicle lights before driving is primarily to ensure safety and visibility. Proper functioning lights—such as headlights, tail lights, brake lights, and turn signals—are crucial for communication with other drivers and for being seen, especially in low-light conditions or poor weather. This practice helps prevent accidents by making your intentions clear to others on the road and ensuring that you can see what lies ahead while driving at night or in adverse conditions.

While lights that are off can save some battery life, improving gas mileage is not related to the lights' operation. The aesthetic appeal of lights is also not a valid reason for checking them; the focus must always be on safety considerations. Checking your vehicle’s lights is an essential step in preparing for a safe journey.