Mercedes-Benz G 55 AMG Operator's Manual page 46

Front seat belts and rear outer seat
belts
1 Latch plate
2 Buckle
3 Release button
With a smooth motion, pull the belt
from the belt outlet.
Place the shoulder portion of the belt
across the top of your shoulder and the
lap portion across your hips.
Push latch plate 1 into buckle 2 until
it clicks.
If necessary, tighten the lap portion to
a snug fit by pulling shoulder portion
up.
Getting started
Rear center seat belt
Overview
1 Attachment for latch plates
2 Buckle for fixed latch plate
3 Release button for fixed latch plate
4 Fixed latch plate
5 Buckle for free-sliding latch plate
6 Release button for free-sliding latch
plate
7 Free-sliding latch plate
Driving
45