New owner of a 2005 Prius here... When I turn the car on, all the indicator lights come on momentarily, and then go out, except the airbag light (that's what that light is with the big circle in front of a stylized seated person, right?), which stays on for another second or so. It goes off as the MFD comes on, and I never get any other messages about it. Is this normal? Should I be concerned?