Buick 1994 LeSabre Owner's Manual page 71

If you don't cancel the security lock feature, adults or
older children who ride in the rear won't be able to open
the rear door from the inside. You should let adults and
older children know how these security locks work, and
how to cancel the locks.
To cancel the rear door lock:
1. Unlock the door from the inside and open the door
from the outside.
2. Move the lever all the way down
3. Do the same for the other rear door.
Remote Trunk Release
The trunk release switch in
the glove box must be
"ON" for the "TRUNK"
button to work.
The rear door locks will now work normally.
This feature allows you to secure items in the trunk
when you must leave the ignition key with an attendant.
To secure the trunk, turn OFF the TRUNK RELEASE,
lock the glove box, then take the door key with you.
69