If your turn signals fail, what should you use to show you're turning?

Using hand signals is the appropriate method to indicate your intention to turn when your turn signals fail. Hand signals are a conventional means of communication that can effectively convey your intentions to other drivers and pedestrians without relying on vehicle lights. This method is highly visible, especially during daylight, and is recognized by other road users.

In addition, hand signals can be used in any situation where communication with others on the road is necessary, providing a reliable alternative when electrical systems are not functioning. Recognizing and using these signals is an important skill for all drivers, as it fosters safety and awareness on the road.

Emergency lights are typically used to indicate a vehicle is stopped or disabled rather than to signal a turn. High beam lights are not intended for signaling other drivers about turns, as their primary purpose is to light the road ahead. Honking the horn is generally used to alert other drivers to your presence rather than indicate a turning motion. Thus, hand signals remain the safest and most effective choice in this scenario.