Causes of Car Accidents Car accidents happen all the time, and they often result in serious injuries. The lives of victims as well as families are also affected. These injuries are caused when energy is transferred during an collision. These injuries include whiplash and spinal cord trauma, as well as leg injuries. Driver Errors regardless of the vehicle regardless of the vehicle, driver error is the main cause of almost every car accident in the United States. Drivers can avoid these accidents by practicing safer driving and paying attention