GMC Sierra Denali 2009 Owner's Manual page 11

Release the control when the lower seatback reaches
the desired level of lumbar support.
Your vehicle may have a memory function which allows
seat settings to be saved and recalled. See Memory
Features on page 1-6 for more information.
Keep in mind that as your seating position changes, as
it may during long trips, so should the position of
your lumbar support. Adjust the seat as needed.
Heated Seats
On vehicles with heated front seats, the controls are
located on the driver and passenger doors.
I
(Heated Seatback): Press to turn on the heated
seatback.
J
(Heated Seat and Seatback): Press to turn on the
heated seat and seatback.
The light on the button will come on to indicate that the
feature is working. Press the button to cycle through the
temperature settings of high, medium, and low and to turn
the heat to the seat off. Indicator lights will show the level
of heat selected: three for high, two for medium, and one
for low.
The heated seats will be canceled 10 seconds after the
ignition is turned off. To use the heated seat feature after
restarting the vehicle, press the heated seat or seatback
button again.
Heated and Cooled Seats
{
(Cooled Seat): To cool the entire seat, press the
button with the cooled seat symbol.
This symbol will appear on the climate control display to
indicate that the feature is on. Press the button to
cycle through the temperature settings of high, medium,
and low and to turn the cooled seat off. Indicator
bars next to the symbol designate the level of cooling
selected: three for high, two for medium, and one
for low.
If the front seats have the
heated and cooled seat
feature, the buttons
used to control this feature
are located on the
climate control panel.
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