Chrysler 300 2014 Owner's Manual page 54

52 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE
Pulling Out The Lap/Shoulder Belt Latch Plate
2. The seat belt latch plate is above the back of your seat.
Grasp the latch plate and pull out the belt. Slide the
latch plate up the webbing as far as necessary to make
the belt go around your lap.
3. When the belt is long enough to fit, insert the latch
plate into the buckle until you hear a "click."
Inserting Latch Plate Into Buckle