What should you do if you need to warn drivers behind you of a situation ahead of you?

If you need to warn drivers behind you of a situation ahead, you should activate your hazard lights to signal an emergency. Additionally, you can tap your brakes gently to alert them without abrupt stops. If safe, consider using hand signals or a reflective triangle if you are stopped and it’s necessary. Always ensure that your actions do not compromise your own safety or that of other drivers.