Manual Lumbar; Power Lumbar - Chevrolet 2008 Avalanche Owner's Manual

Manual Lumbar

On vehicles with this feature the control is located on
the outboard side of the seat.
Increase or decrease lumbar support by turning the
knob forward or rearward.
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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.