GMC 1995 Suburban Owner's Manual page 26

When you do the seat
bottom will release.
Just pull or push the
seat forward until it
stops.
To return the seat to its regular position, return the seatback to its upright
position, then push the whole seat rearward until it latches.
After returning the seat to its regular position, try to move the seat with your
body, to make sure the seat is locked into place.
Head Restraints
Slide the head restraint up or down so that the top of the restraint is closest
to the top of your ears. This position reduces the chance of a neck injury in a
crash.
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