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GMC 2010 Sierra - Page 16

GMC 2010 Sierra
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Manual Lumbar
If equipped, this control is
located on the outboard
side of the seat.
Increase or decrease lumbar support by turning the
knob forward or rearward.
Power Lumbar
If equipped, this control is located on the outboard side
of the seat.
On vehicles with two-way lumbar, press and hold the
top of the control to increase lumbar support. To
decrease, press and hold the bottom of the control.
On vehicles with four-way lumbar, press and hold the
front of the control to increase lumbar support. To
decrease, press and hold the rear of the control. To
raise the height of the support, press and hold the top of
the control. To lower, press and hold the bottom of the
control. See Power Lumbar on page 27.
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