Just bought my first Mitz Endeavor 2005. I am not sure the Passenger Seat Airbag Indicator is operating properly. When i am alone in the car with no passenger the indicator comes on and stays on the entire time. I would have thought that if there was no passenger or a very light load, the light would have come on briefly while starting the car, but then gone out...but noooo...it stays on which is very annoying, especially at night. Is this normal? Any suggestions to help?