It sounds like my seatbelt warning chime but I'm not certain which one it is but even when my seatbelt is on & the seatbelt light goes off something keeps chiming for about 2 to 3 minutes then stops. It does it everything time I put my car in gear to drive.

SOURCE: Arter I put on Seat Belt, another chime goes on for 6 rings,then stops

HI.
ON Ford cars and Suv's,
Some times the sound chime after the seat belt buklet.
Is like a open door.
The problem on this car is that the the DOOR AJAR SWITCH. come danaged. and the Body cumputer don't recievethe door close signal.
But is intermitent.
The door ajar switch is on the door lacth.
You only can get front the dealer.
OK. I hope this information can be useful for you.

Thank you.

SOURCE: chime goes off

Open the drivers door and look at the hindge area and you will see a black rubber accordian tube between the door and the pillar.This is the protective cover for the wiring harness. Now take a screw driver and stick it into the latch that latches when u close the door and trip the latch. Now start up the vehicle and wiggle the black tube and see if you can duplicate the concern. If so then pull the cover back and inspect the wires for a broken wire. these models are bad for this happening.

SOURCE: Drivers side seatbelt connected When truck is

sensor in the seat belt bukle needs to be replaced

SOURCE: Hi. Everytime I hit

Hi!!
Check the upper part of the brake pedal. While you activate the pedal with your hand, make sure that when the pedal is traveling none of the linkage touches any wires. Activate the key and seat belt chimes to find their location and follow the wiring towards the fuse box, somewhere in between could be your problem.
Keep me posted!!

SOURCE: warning chimes with no warning lights

check that the passenger seat is back rest is properly in the back position and "locked " in place