1997 Oldsmobile Silhouette Owner's Manual - Page 92

Front Doors To lock either front door from the inside, push the locking lever forward. To unlock either front door from the outside with the key, insert the key and turn it toward the front of the vehicle. You can lock either front door from the outside with your key by inserting and turning it toward the rear of the vehicle. To unlock either front door from the inside, pull back on the locking lever. 2-4