RAM TRUCK 1500 2014 Owner's Manual page 61

THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 59
2
Detaching Buckle With Seat Belt Tongue Inserting Latch Plate
2. To reattach the seat belt to the front center seat, pull
the black buckle latch plate forward from the cab back
panel and insert it into the black keyed buckle until
there is an audible "click". For proper seat belt usage,
refer "Lap/Shoulder Belt Operating Instructions".