What should you do if you experience a breakdown on the shoulder of an interstate highway?

When you experience a breakdown on the shoulder of an interstate highway, raising the hood of your vehicle serves as a signal to other drivers and to any potential helpers that your vehicle is disabled. By tying a white handkerchief to the left door handle, you are further communicating your situation: this is a widely recognized signal of distress. The use of a white handkerchief indicates that you need assistance, and it stands out against the car and the environment.

This combination of actions not only increases your visibility but also enhances safety by making your situation apparent to other drivers. It is crucial to alert passing motorists to your plight without putting yourself in harm's way, which this approach accomplishes. Additionally, staying with your vehicle when it is safe to do so is generally advisable, as it provides protection and a safer space while you await help.