Buick 1999 LeSabre Owner's Manual page 33

AV147187
1. Pick up the latch plate and pull the belt across you.
Don't let it get twisted.
The 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.
2. Push the latch plate into the buckle until it clicks.
First Edition for Buick LeSabre Owner's Manual – 1999
AV147188
If the belt stops before it reaches the buckle, tilt the
latch plate and keep pulling until you can buckle it.
Pull up on the latch plate to make sure it is secure.
If the belt is not long enough, see "Safety Belt
Extender" at the end of this section. Make sure the
release button on the buckle is positioned so you
would be able to unbuckle the safety belt quickly if
you ever had to.
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