Règles de la route

Before changing lanes, you should:

Panneau routier de Ontario — Look over your shoulder at the blind spot in addition to checking mirrors
Afficher la réponse et l'explication
Bonne réponse : B. Look over your shoulder at the blind spot in addition to checking mirrors

Mirrors cover most — but not all — areas beside your vehicle. The blind spot is where a motorcycle, car, or cyclist can hide completely. A shoulder check (quick head turn) is the only reliable way to see it.