The three main mirrors on a car are the interior rearview mirror, the left exterior rearview mirror, and the right exterior rearview mirror, which together form the core system for driving visibility. The interior rearview mirror is positioned above the windshield, featuring a flat mirror design to monitor vehicles directly behind and the interior cabin. Some models incorporate an anti-glare function to mitigate strong light interference during nighttime driving. Together they provide approximately 60 degrees of coverage in the lateral rear viewing area. Certain large commercial vehicles may be equipped with additional downward-facing mirrors or blind-spot mirrors to address body blind zones, though standard passenger vehicles primarily rely on these three mirrors. Proper mirror adjustment should adhere to the principle of "minimizing the visible portion of one's own vehicle" and be supplemented by head checks to eliminate residual blind spots-particularly when changing lanes, turning, or reversing, requiring frequent verification of mirror information. These mirrors' materials, curvature, and functionalities (such as heating and power-folding) all conform to industry safety standards, serving as critical components for driving safety.
