GMC Yukon Owner's Manual page 85

2. Pick up the latch plate and pull the belt across you.
Do not let it get twisted.
The lap-shoulder belt may lock if you pull the belt
across you very quickly. If this happens, let the belt
go back slightly to unlock it. Then pull the belt
across you more slowly.
If the shoulder portion of a passenger belt with a
free falling latch plate is pulled out all the way,
the child restraint locking feature may be engaged.
If this happens, let the belt go back all the way and
start again.
Engaging the child restraint locking feature
in the right front seating position may affect
the passenger sensing system, if equipped.
See Passenger Sensing System on page 2 94
for more information.
If the belt stops before it reaches the buckle, for
lap shoulder belts with cinching latch plates, tilt the
latch plate and keep pulling the safety belt until it
can be buckled.
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