On 4/9/12 I was involved in a serious accident that resulted in my daughter obtaining a severe traumatic brain. She was in critical condition and is now severely disabled. The back curtain airbags did not protect her and did not appear to work properly. I believe that the vehicle was not properly examined after the accident. The car was a rental vehicle and my family was out of state on vacation. Due to the severe injury of my daughter I believe that the airbags failed.