2000 GMC Jimmy Owner's Manual - Page 16

Raise the rear of the seat by raising the rear edge of the button. Lower the rear of the seat by lowering the rear edge of the button. Move the seat rearward by moving the whole button toward the rear of the vehicle. Moving the whole button up or down raises or lowers the whole seat. Vertical Control: Move the reclining front seatback rearward by moving the button toward the rear of the vehicle. Move the seatback forward by moving the button toward the front of the vehicle. Power Lumbar Control (If Equipped) If you have this control, it is located on the left side of the driver's seat. Press and hold the front of the control until you have the desired lumbar support. To decrease lumbar support, press and hold the rear of the control. 1-4