My mother was in a car accident where another driver was not paying attention and t-boned her passenger side, doing about 55+ mph. My mother's vehicle, the Kia, had just begun travelling through an intersection (~10-15 mph) when the crash occurred. The Kia was hit so hard that it rolled 2-3 times before coming to a complete stop. She survived with a few fractured bones, thankfully, but the steering wheel airbag DID NOT DEPLOY! Every other airbag (driver side, passenger side, rear side) deployed, but not one of the most important ones. We're not sure if her injuries would have been lessened with that airbag or not, but the car was totaled out by insurance. There were no warning lights or symptoms prior to the crash.