Chevrolet 2007 Kodiak Owner's Manual page 14

Height Adjustment
Seat Height
If your vehicle has an adjustment bar, it is located
Adjustment Lever
under the front of the seat cushion.
Lift the bar to unlock the seat. Slide the seat to
where you want it and release the bar. Try to move
the seat with your body to be sure the seat is
locked in place.
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