Before backing up, check for anyone or anything behind you, both by looking in your mirrors and over your shoulder. This includes checking carefully for children who may be too small to be in your direct line of vision. With your foot on the brake, put the vehicle in reverse. If you are reversing straight back or to the right, check your mirrors and look over your right shoulder. If reversing to the left, use your mirrors and look over your left shoulder. Take your foot off the brake and, if you’re turning as you reverse, ensure that you don’t strike anything to the sides.
Look over your left shoulder for a clear view when reversing to the left.
Look over your right shoulder when reversing straight or to the right.