When must you use your turn signal?

Using your turn signal is essential for ensuring safety on the road. It is required anytime you are turning or changing lanes. This communication tool informs other drivers and pedestrians of your intentions, which helps to prevent accidents.

By signaling your turns and lane changes, you allow others to anticipate your actions, creating a safer driving environment. It's particularly important to signal well in advance of the maneuver to give other road users adequate time to respond. This practice is a fundamental part of responsible driving, emphasizing the importance of being aware of and considerate towards other road users.

The other options are limited in context. For example, using a signal only during nighttime or only when parking does not encompass the full scope of driving situations where signaling is necessary. Additionally, signaling solely when other vehicles are around does not account for pedestrian traffic or other potential hazards, thereby neglecting crucial safety aspects.