1996 GMC Safari Owner's Manual - Page 10

2-Way Front Seat The bucket seats can be adjusted forward or rearward by the lever at the front of the seat. Manual Lumbar Support (Option) Move the seat adjustment lever at the front of the seat toward the driver's door to unlock it. Slide the seat to where you want it. Then release the lever and try to move the seat with your body, to make sure the seat is locked into place. If you have this feature, there will be a knob on the inboard side of the driver and passenger bucket seats. Turn the knob toward the front of the vehicle to increase lumbar support. Turn the knob toward the rear of the vehicle to decrease lumbar support. 1-2