GMC Sierra Owners Manual
Power Seat Adjustment
To adjust a power seat, if equipped:
• Move the seat forward or rearward by sliding the control forward or rearward.
• If available, raise or lower the front or rear part of the seat cushion by moving the front or rear of the control up or down.
• If available, raise or lower the entire seat by moving the entire control up or down.
To adjust the seatback, see “Power Reclining Seatbacks” under Reclining Seatbacks on page 3‑5.