2003 Toyota Prius Owners Manual - Page 84

32.Outside rear view mirrors- CAUTION CAUTION Do not adjust the mirror while the vehicle is moving. Doing so may cause the driver to mishandle the vehicle and an accident may occur resulting in death or serious injuries. D Do not adjust the steering wheel while the vehicle is moving. Doing so may cause the driver to mishandle the vehicle and an accident may occur resulting in death or serious injuries. 22p059 D After adjusting the steering wheel, try moving it up and down to make sure it is locked in position. Adjust the mirror so that you can just see the side of your vehicle in the mirror. Be careful when judging the size or distance of any object seen in the outside rear view mirror on the passenger's side. It is a convex mirror with a curved surface. Any object seen in a convex mirror will look smaller and farther away than when seen in a flat mirror. 77