Seat Belt Warning-even with no one else in vehicle

The seats have a switch to sense a butt in them, and another to sense the seatbelt in use in the occupied seat. You have to isolate if the trouble is coming from the passenger seat or the driver seat. (Since the driver seat is the most often occupied seat, my guess is the driver seat is your problem.)

Got anything sitting ON the backseat ?

There are no sensors in the back seat but I do have a child seat and it's bene there since we got it.

This warning goes off even when ther is only the driver in the vehicle.

This implies that the problem is the switch that detect that the drivers seat is buckeled. Take a look at the fixed buckle, there should be wire comming out from it. Make sure the wire is properly connected.

Since this is a 2005, is it still under warranty? Remember, seat belts have a longer warranty than other parts of the vehicle. From the 2005 warranty guide -

"Safety Restraint Coverage

"Under your New Vehicle Limited Warranty, Safety Restraint Coverage begins at the warranty start date and lasts for five years or 50,000 miles, whichever occurs first. During this coverage period, Ford Motor Company or Ford Motor Vehicle Assurance Company warrants your vehicle's safety belts and air bag Supplemental Restraint System (SRS) against defects in factory-supplied materials or workmanship."

You should check with your dealer, but I feel certain that the seat belt reminder light system is part of the Safety Restraint System. If the dealer says otherwise, I'd refer them to the warranty guide and ask to talk to the zone representative.

Ed

Cool, then I'll call the dealer and get it repaired.

Thanks.