2. Turn the knob to adjust the mirror. Turning the knob clockwise will move the mirror outward, while turning it counterclockwise will move the mirror inward.
3. Adjust the mirror until you can see the side of your car in it. The mirror should be positioned so that you can see the edge of your car, as well as the traffic behind you.
4. Repeat steps 1-3 for the other wing mirror.