Hummer H2 2009 Owner's Manual page 9

Power Lumbar
If the seats have power lumbar, the controls used to
operate this feature are located on the outboard side of
the seats.
•
To increase lumbar support, press and hold the
front of the control.
•
To decrease lumbar support, press and hold the
rear of the control.
•
To raise the height of the lumbar support, press
and hold the top of the control.
•
To lower the height of the lumbar support, press
and hold the bottom of the control.
Release the control when the lower seatback reaches
the desired level of lumbar support.
The vehicle may have a memory function which allows
seat settings to be saved and recalled. See Memory
Seat and Mirrors on page 1-6 for more information.
Keep in mind that as the seating position changes, as it
may during long trips, so should the position of the
lumbar support. Adjust the seat as needed.
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