might be that the passenger seat occupancy sensors busted, its a little black box on the bottom of the passenger seat.
swap it with your old seats and try again, might want to cycle the key a few times so it can clear it.
if not, the dealer can clear it. __________________ 
^being rebuilt^
until then:
daily car:
96' Blue DASC'd ti with koni coilovers
slowly progressing...
weekend car:
85 1/2' 944 Porsche
no a/c, p/s, gutted cat, loud as hell exhaust, loud as hell sound system |