When you are on the scene of an accident, it is important to comply with the police and be honest with the medical professionals tending to your injuries. You will need to give honest statements to those groups of people.
Giving statements to anyone else present is highly discouraged. This includes giving statements to the other driver and especially the other driver’s insurance company or someone from the vehicle company that caused the accident. In those cases, commercial vehicles notify their company within minutes that an accident has occurred. The company then works immediately to get their insurance company informed.
The insurance company will likely send someone to investigate the scene within an hour. It is important that you do not speak to those representatives. They do not represent you or your rights. Their main goal is to pay you the least amount of money as possible for your damages including medical bills, lost wages, pain and suffering, and impairment. In short, only give statements to law enforcement and medical professionals at the scene of the accident.