How would you check the functionality of the turn signals?

To confirm the functionality of the turn signals, visually observing that they are flashing is the most effective method. This action allows the operator to directly see that the turn signals on both the front and rear of the vehicle are operating correctly. Proper operation of the turn signals involves ensuring they are clear and bright, which is crucial for communication with other drivers on the road.

While listening for a sound might provide some indication that the signal is activated, it does not guarantee that the lights are functioning correctly. Checking the condition of the bulbs alone does not confirm that the signals are operational; a bulb may be in good condition but still not work due to issues in the wiring or electrical systems. Furthermore, solely relying on the dashboard indicator does not provide comprehensive information about whether the external turn signals are functioning as they should. The visual check encompasses the complete evaluation of the turn signals, ensuring they are ready for safe operation on the road.