had car all of a few days and this warning light that says serv and the air bag light has come on for no reason that i know of. Ive not crashed or bumped anything...however the serv light with the air bag light is present...dont suppse this means it needs a service? or is it something more sinister? Was recently serviced 4000 miles ago...so cant see why this has occured. Ive checked all doors, making sure nothing is obstructing the air bags etc...and made sure the passenger air bag is off and tried to turn it on and off still no changes. This is on a 172 sport. Thanks for any help.