Chevrolet Tahoe 2012 Owner's Manual page 14

If available, raise or lower the
front or rear part of the seat
cushion by moving the front or
rear of the control up or down.
If available, raise or lower the
entire seat by moving the entire
control up or down.
See Power Seat Adjustment on
page 3 4.
If equipped, increase or decrease
manual lumbar support by turning
the knob forward or rearward.
See Lumbar Adjustment on
page 3 5.
To adjust the power lumbar support,
if equipped:
On vehicles with two-way
lumbar, press and hold the top
or bottom of the control to
increase or decrease lumbar
support.