Protect people and the vehicle
Safety comes before movement.
If you can do so safely, move yourself away from traffic and use hazard lights while waiting.
Do not force a car through sand, water or mud, or keep driving one that is overheating, leaking or steering badly.
After a collision, avoid moving the vehicle unnecessarily and contact emergency services first if anyone is injured or in immediate danger.
Tell dispatch if the car is in a live lane, poorly lit area, basement or restricted-access location so the risk is understood.
Once you are in a safe position, keep the phone available and make the vehicle as accessible as practical. Do not stand in a live lane or beside a moving vehicle to retrieve paperwork. If access is restricted, describe the entrance, level or nearby landmark so the pickup can be coordinated with that in mind.