Which strategy best reduces blind spots on a heavy vehicle?

• A. Rely solely on side cameras.
• B. Drive with window closed at all times.
• C. Adjust mirrors, use convex mirrors, and move to the center of your lane.
• D. Use the horn to signal when changing lanes.

Answer: (C)

Reducing blind spots on a heavy vehicle comes from maximizing visibility around the truck through proper mirror setup, extra wide-angle viewing, and solid lane positioning. Adjust the side mirrors so you can see as much of the adjacent lanes as possible, and add convex mirrors to widen the field of view where flat mirrors miss objects. Positioning the vehicle toward the center of your lane keeps you out of the areas where your truck’s blind spots are largest, giving you a clearer view of neighboring traffic and more time to react.

Relying only on side cameras isn’t enough because camera systems can fail or have limitations in resolution, lighting, or glare, and they don’t replace the need to look and verify with your own eyes. Keeping the window closed isn’t about visibility for blind spots, and honking doesn’t reduce blind spots—it may warn others but it doesn’t improve what you can see.