Many drivers are unaware that their car’s rearview mirror includes a built-in feature specifically designed to improve nighttime driving. This simple lever or button, commonly found on manual mirrors, allows the driver to switch to a night or anti-glare mode. Though often ignored, it plays an important role in reducing the harsh brightness from headlights behind you.

When this night mode is activated, the mirror shifts positions slightly. This subtle change softens the reflection of intense lights shining from the rear, creating a dimmer, more comfortable view. The softened glare allows drivers to remain focused on the road without being distracted or blinded by the reflection of high beams.

Driving at night naturally places extra strain on the eyes. Bright reflections in the mirror can lead to temporary discomfort or difficulty adjusting to low-light environments. Using the anti-glare setting helps maintain clearer night vision, making it easier to keep track of traffic, spot changes on the road, and identify potential hazards in advance.

This adjustment works best when paired with other simple habits that improve visibility. Keeping mirrors and windows clean helps reduce scattered light, ensuring reflections stay sharp and controlled. Additionally, when headlights on all vehicles are properly aligned, nighttime driving becomes safer and more comfortable for everyone on the road.

What makes the rearview mirror’s night mode particularly convenient is its ease of use. The driver can activate it instantly, without tools or complex steps. The small motion of flipping the switch can lead to significant improvements in nighttime clarity and comfort.

By forming the habit of using this feature during evening drives, drivers protect their eyes and reduce fatigue. This contributes to better awareness, a calmer driving experience, and improved overall safety—showing that even small features can make a noticeable difference behind the wheel.