2003 GMC Sierra 1500 Pickup Owner's Manual - Page 11

Power Seats If your vehicle has power reclining seats, you can use the vertical control to adjust the angle of the seatback. If your vehicle has a power seat, you can adjustit with these controls located on the outboard sides of the seats. Raise or lower the front of the seat cushion by raising or lowering the forward edge of the horizontal control. Move the seatforward or rearward by moving the whole horizontal control forward rearward. or e To increase or decrease support, press and hold the front or rear of the control. Let go of the control when the lower seatback reaches the desired level of support. You can also reshape the side wing area of the lower seatback for more lateral support. To increase or decrease support, press and hold the top or bottom of the control. Let go of the control when the lower seatback reaches the desired level of support. Raise or lowerthe rear of the seatcushion by raising or lowering the rear edge of the horizontal control. Moving the whole horizontal control up or down raises or lowersthe entire seat cushion. e 1 -4