Pontiac 1997 Grand Prix Owner's Manual page 12

2-Way Manual Lumbar (If Equipped)
4-Way Power Lumbar Driver's Seat
(If
Equipped)
The knob that controls this feature is located on the right
side
of
the driver's seat, about half of the way down the
seatback. Turn the knob clockwise to increase lumbar
support. Turn the knob counterclockwise to decrease
lumbar support.
If you have this option, there will be a toggle switch on
the left side of
the
driver's seat cushion, just in front of
the reclining seatback lever. To increase or decrease
lumbar support, push the switch forward or rearward,
To adjust the lumbar support up or down, push the
switch up or down.
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