Take the car & say that seatbelt does not work. Most likely a service advisor, service manager, or parts guy will quickly visually look @ the seatbelt & check operation. If not working they will order a new, call you when the part comes in, & install for $0.00
I can't remember the exact mileage(think 75K-105K) but there is an emission extension. Includes Oil/filter change, spark plugs, wires, & some other stuff all for FREE. While your at the dealer have them run a VIN status to check for any open recalls or FREE stuff that hasn't been completed. If you normally service @ the dealer then it should all be up to date.