What signal can you use to notify approaching traffic of your vehicle's breakdown?

Using hazard lights is the appropriate signal to notify approaching traffic of your vehicle's breakdown. Hazard lights, also known as emergency lights, are designed specifically to alert other drivers that there is a problem with your vehicle and that you may be stationary or moving at a slow speed. When activated, these lights flash all four turn signals simultaneously, making your vehicle more visible and allowing other drivers to understand that they should exercise caution while approaching.

In contrast, turn signals are intended for indicating lane changes or turns in traffic, and they do not convey the message of a breakdown situation. Headlights are used primarily for visibility during low-light conditions and do not effectively communicate to other drivers that you are experiencing an emergency. Brake lights are activated when you apply the brakes and signal your intention to stop, but they do not indicate that your vehicle is broken down or stationary. This distinction helps ensure that other drivers are informed of your situation, promoting safety on the roadway.