When making an emergency stop on the highway, what should you do first?

When making an emergency stop on the highway, the first action to take is to put on your four-way flashers. Activating your four-way flashers alerts other drivers that your vehicle is experiencing difficulties and is not moving as expected. This is crucial on highways, where traffic flows at higher speeds and early warning can prevent potential collisions.

Turning off the engine, setting out flares, or calling for help are important steps to consider but should come after you have ensured your vehicle is visible to others on the road. Flashers provide immediate notice to surrounding vehicles to give you space and proceed with caution, thereby enhancing safety for both you and other drivers.