GMC C series 2002 Owner's Manual page 20

Suspension (B)
3. Pick up the latch plate and pull the belt across you.
Don't let it get twisted.
4. Push the latch plate into the buckle until it clicks.
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For suspension type seats (B), if the belt stops
before it reaches the buckle, tilt the latch plate and
keep pulling until you can buckle the belt. Pull up on
the latch plate to make sure it is secure. If the belt is
pulled out all the way so that it locks, press down on
the button on the retractor cover to make it retract.
If the belt isn't 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.
Suspension (B)
5. To make the lap part tight on suspension
seats (B), pull down on the buckle end of the belt
as you pull up on the shoulder belt.
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type
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