1. You can contact the people in the car through OnStar's service platform. On Anjixing's service platform, you can choose manual service to explain the situation to the customer service staff, who will help contact the people in the car.
2. If the people in the car don't have cell phones, they can also send messages or make phone calls to the people in the car through OnStar system. When sending a text message or making a phone call, you need to provide the mobile phone number associated with the vehicle, the license plate number and other information.
The above information is for reference only. For more accurate information, please consult Anjixing customer service.