Texas Defensive Driving Written Practice Test 2026 - Free Defensive Driving Practice Questions and Study Guide

Having vehicle headlights on during the day primarily serves to improve the driver’s visibility. When headlights are activated during daylight hours, they make the vehicle more noticeable to other drivers, pedestrians, and cyclists, thus enhancing overall road safety. This practice can significantly reduce the likelihood of collisions, especially in situations where lighting conditions may make it harder for other road users to see a vehicle clearly.

Using headlights during the day is particularly beneficial in conditions of low visibility, such as in overcast weather, rain, fog, or when driving through tunnels. It helps ensure that a driver's vehicle stands out against the background, which can aid in preventing accidents.

Other options, while they may have certain elements of truth, do not align with the primary purpose of using headlights during daylight. For instance, batteries are designed to supply sufficient power to multiple electrical components of a vehicle, and stylishness or signaling intentions to other drivers do not constitute the main safety objective behind this practice.