What should a driver do if they intend to reverse their vehicle into an area which they cannot see?

Open driver’s window and look behind.
Open driver’s door and look behind.
Ask someone to guide you when reversing.
Look in nearside (left) mirror when reversing.

Explantion: Do not attempt to reverse into an area that you cannot see into properly. You should get assistance from somebody who can guide you safely into the area.

Theory Tester

What should a driver do if they intend to reverse their vehicle into an area which they cannot see?

Managing Risk