Pontiac GRANDAM 2004 Owner's Manual page 31

If the belt stops before it reaches the buckle,
3. To make the lap part tight, pull down on the buckle
tilt the latch plate and keep pulling until you can
end of the belt as you pull up on the shoulder part.
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 on page 1-31. 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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