GMC Yukon Denali 2015 Owner's Manual page 82

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 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 front
outboard seating position may
affect the passenger sensing
system. See Passenger Sensing
System on page 3-32.
For front seating positions, if the
webbing locks in the latch plate
before it reaches the buckle, tilt
the latch plate flat to unlock.
Seats and Restraints
3. Push the latch plate into the
buckle until it clicks. If you find
that the latch plate will not go
fully into the buckle, see if you
are using the correct buckle.
Pull up on the latch plate to
make sure it is secure. If the belt
is not long enough, see Safety
Belt Extender on page 3-23.
Position the release button on
the buckle so that the safety belt
could be quickly unbuckled if
necessary.
3-19