Colorado CDL Practice Test 2026 – All-in-One Guide to Master Your Commercial Driver's License Exam!

A commercial driver should check their mirrors constantly while driving for several important reasons. Keeping a continuous awareness of the surroundings is critical for ensuring safety on the road. Regular mirror checks help the driver monitor other vehicles, pedestrians, and obstacles, allowing for timely responses to any changes in the driving environment.

This practice is crucial in preventing accidents, particularly because commercial vehicles have larger blind spots than standard vehicles. Constant vigilance through mirror checks helps the driver maintain situational awareness, ensuring they can react appropriately to potential hazards. In contrast, the other suggestions do not promote the same level of awareness or safety, as checking mirrors too infrequently could lead to missing important developments on the road.