2013 BUICK VERANO Seats Problems

My passenger air bag module is faulty, when an individual is in the car, the module doesn't sense the passenger. So there is no airbag and I was told that it's possible in an accident that the airbag would not go off. I paid $600 to get a diagnostic, from Marvin K and Brown dealership. They reported back to me that the module was at fault. My vehicle is out of warranty. The service airbag notification has been continuously popping up on and off.

Check airbag warning light comes on, when someone is in passenger seat. Air bag light is off. When the passenger seat is empty the air bag light is on and the fasten seatbelt light flashes and chimes. I feel this is a safety issue and should be addressed.

MY FIRST COMPLAINT HAS TO DO WITH THE "LOW FUEL" WARNING INDICATOR NOT FUNCTIONING PROPERLY. THIS DOESN'T OCCUR OFTEN, BUT I'VE NOTICED IT HAPPEN 3 TIMES IN THE PAST 6 MONTHS, AND I'M UNSURE OF WHEN THIS ISSUE FIRST BEGAN. TYPICALLY, THE FUEL LEVEL INDICATOR WILL BE AT 1/4 OR BELOW, AND WHEN DRIVING A LONG DISTANCE, STOPPING AND GOING, AND/OR ON HILLY RURAL ROADS, WHEN THE NEEDLE CROSSES INTO THE RED AND EVENTUALLY HITS "0" THE "LOW FUEL" INDICATOR HAS NOT LIT UP, NO MESSAGE APPEARED, AND NO WARNING CHIME, BUT THE DIC STATES "LOW FUEL RANGE". PERHAPS THE SENSOR IS GOING BAD, BUT WHY WOULDN'T THE LIGHT TURN ON IF THE SYSTEM KNOWS THE FUEL LEVEL IS LOW? I CAN PARK SOMEWHERE AND IDLE FOR 30 MIN AND THE LIGHT STILL WON'T TURN ON. ONLY AFTER I SHUT THE CAR OFF AND RESTART IT DOES THE LIGHT/WARNING CHIME/MESSAGE...