So, it's been a few weeks, how's your daughter doing?
I've heard that after traumatic accidents, most pre-teens suffer with everything from nightmares to nighttime incontinence to severe headaches, and they often don't talk about it because they blame themselves for the accident. (Logically, we all know it's not her fault, but she may think she somehow diverted your attention and you otherwise could have avoided the first vehicle.)
So have you spoken with her about the accident? How's she handling it?