Caution: A convex mirror can make things (like other vehicles) look farther away than they really are. If you cut too sharply into the right or left lane, you could hit a vehicle. Check the regular outside mirrors (or the inside mirror, if you have one) before changing lanes.

Your vehicle may have convex mirrors on both the driver's side and the passenger's side. They are curved to allow more to be seen from the driver's seat. A convex mirror can make things look farther away than they really are.