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Question 6609

If a vehicle has an automatic lighting system, when does it turn on?

  1. At a predetermined time.
  2. When a sensor detects a decrease in visibility.
  3. When a sensor detects that the driver is fatigued.
Show answer and explanation

Correct answer: When a sensor detects a decrease in visibility.

Automatic lighting uses a sensor that measures the light outside. When it detects reduced visibility, for example at dusk or when you enter a tunnel, it turns the lights on, then turns them off when it gets light again. Neither the time of day nor driver fatigue activates it.

Cuestiones de Seguridad Vial. Edición 2026