GMC 2007 Envoy - Manual (Page 10)

Manual Lumbar
If your vehicle has
this feature, there is
a knob located on
the outboard side of
the driver’s seat.
Turn the top of the knob toward the front of the
vehicle to increase lumbar support. Turn the top
of the knob toward the rear of the vehicle to
decrease lumbar support.
Power Lumbar
Your vehicle may have power lumbar on the
driver’s and front passenger’s seats.
The seatback lumbar
support can be adjusted
by moving the control
located on the outboard
side of the seat
cushions.
To increase or decrease support, hold the control
forward or rearward.
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.
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