Chevrolet Kodiak 2008 Owner's Manual page 12

Lumbar Adjustment
Lumbar
Adjustment Knob
If your vehicle has a lumbar adjustment knob, it is
located on the inboard side of the driver's seatback, or
on the outboard side of the passenger's seatback.
For more support to your lower back, turn the lumbar
adjustment knob clockwise. To decrease the amount of
lumbar support, turn the knob counterclockwise.
1-8
Seatback Adjustment
Your vehicle has a seatback adjustment control located
on the outboard side of the seat.
Recline the seatback by turning the control
counterclockwise.
Return the seatback to an upright position by turning the
control clockwise.