GMC 1998 Savana Van Owner's Manual page 77

Power Door Locks (Option)
Press the bottom side of the
power door lock switch to
lock the doors at once.
When a door is locked, the inside door handle will
not work.
Child Security Locks
Child 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.
With this feature, you can
lock these doors so they
can't be opened from the
inside by passengers.
1
CHILD
LOCK
Printed In U.S.A.
1
Move the button down to
engage the security feature.
Move the button up to
return the door locks to
normal operation.
Rear Cargo Door
2-5