DT*: THE CONTACT STATED THE SERVICE STABILITY SYSTEM LIGHT ILLUMINATED. THE VEHICLE WAS TAKEN TO THE DEALERSHIP AND THE SENSOR WAS REPLACED THE FIRST TIME. THE PROBLEM RETURNED, BUT THE DEALERSHIP COULD NOT REPAIR UNLESS THE LIGHT WAS ILLUMINATED WHILE AT THE DEALERSHIP. ALSO, THE FRONT PASSENGER SEAT BELT LOCKED UP WITHOUT BRAKING. THE SEATBELT HAS BEEN REPLACED 3-4 TIMES, BUT THE PROBLEM PERSIST. THE DEALERSHIP SUGGESTED A SEATBELT EXTENSION BE INSTALLED, BUT THE PROBLEM OCCURRED NO MATTER THE SIZE OF THE PASSENGER.