The ignition is located either on the side of the steering column or on the dashboard. It is a multifunction switch, into which you insert your key, in order to energize the electrical circuits and activate your starter motor.
Ignitions usually have three positions which serve different purposes. You turn your key clockwise to go to a higher position and counter-clockwise to deactivate it. The first position is the off position when your car is in park. The second position causes the dashboard instruments to activate. The final position causes your engine to start.