Light switches can operate one or multiple lights, depending on the model and your car setup. The headlight switch can be located on the dash or on a stalk extending from the steering column. This switch also controls the parking lights. Many headlight switches have an automatic setting that allows the lights to come on when reduced ambient light is detected. The stalk containing the headlight switch may also operate the turn signals when pushed up or down, or they may be on a separate stalk or lever. The high beams may also be operated by the same or a similar lever, called the dimmer switch. Pulling the lever rearward momentarily, usually flashes the high beams, while pushing the lever forward is for continuous high beam operation.