Oldsmobile 2000 Silhouette - Manual (Page 61)

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Second Row Outside Passenger Positions Third Row Outside Passenger Positions
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.
On some vehicles, when the shoulder belt is pulled
out all the way, it will lock. If it does, let it go back
all the way and start again. 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.