My sister was driving my 2006 Ford Focus along a highway. Out of nowhere, the airbag in the side of the driver's seat deployed. This was the only airbag that deployed. The airbag deployed into the side of my sister emitting a white smoke or powder substance. She saw black from the trauma of the airbag impact. She was able to then gain control of the vehicle as no other vehicles were around. She got into the emergency lane and slowly made her way to the offramp then into a gravel parking lot. She then called her daughter to pick her up, who then took her to the ER. She was not thinking clearly or she would have called an ambulance. My husband took off work and took our car dolly and towed the vehicle to our house. My sister was diagnosed with head trauma, concussion, and whiplash. She has since been to her primary doctor who is following her care now. My sister now has ongoing foggy head, headaches, slower reactions, pain going down her leg and arm and dizziness. We have made contact with Ford and made a complaint, giving a case number and told they would contact me with 15 business days. As of today, no one has contacted us, so my sister called Ford and basically had to file another complaint, given a second case number, then told her for me to file a report with my insurance company and take the vehicle to Ford to have the airbags inspected. I immediately called my insurance company and am waiting for the adjuster to call me today. I was informed due to the price of a new a