1. Immediately dial the emergency rescue hotline on the highway, such as "12122" in China, and explain the situation and location according to the voice prompts.
If you are unable to use a phone, you can search for emergency call facilities or signs within the roadside emergency parking area and use their communication devices to contact rescue.
3. Stay calm, ensure your own safety, try to move the vehicle to a place that does not obstruct traffic, turn on the double flashing warning lights, and set up a warning sign behind the vehicle.