1999 GMC Savana Van Owner's Manual - Page 73
1999 GMC Savana Van Manual
Page 73 highlights
yellowblue Power Door Locks (Option) Press the bottom side of the power door lock switch to lock the doors at once. With this feature, you can lock these doors so they can't be opened from the inside by passengers. Move the button down to engage the security feature. Move the button up to return the door locks to normal operation. Move the button to the left to engage the security feature. Move the button to the right to return the door locks to normal operation. Rear Cargo Door When a door is locked, the inside door handle will not work. Rear Door Security Lock Security locks are located on the passenger side rear door, the side sliding door or the front portion of the 60/40 side swing-out door. 60/40 2-5