1994 Buick Century Safety Locks

So far, no success in finding out how to engage and disengage the child safety locks. One suggestion was that there should be a decal with instructions, but there are no decals, no visible switches, no latches or
anything that looks like it could be moved to change status of the safety locks.
Does anybody have any other ideas or own one of these cars who can look it up in the owner's manual?
Any help will be greatly appreciated.
Bob Giel snipped-for-privacy@earthlink.net
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I'm sorry about the confusion on this matter, and the use of bandwidth, but this could become a safety hazard, so please forgive me.
To clarify: This is a 1994 Buick Century Station Wagon. The system uses power windows and locks. All four door locks normally operate in unison. If the engine is running and the vehicle is in gear, all the doors lock automatically, and they remain locked until the engine is shut off. They do NOT unlock automatically as long as the engine is running (even if put back in Park). However, even with the engine running (in or out of gear) the people in the front seats CAN always override the automatic system anytime they wish simply by pressing a power lock switch, or manually sliding a lever in the door, (sort of a horizontal version of the oldstyle lock buttons in older cars.) The poor folks in the back seat can NOT do either! The rear doors only respond to the automatic locking sequence or the lock switches in the front doors. The rear doors can not be unlocked or locked by the people sitting in the rear seats either manually or electronically. For the back seats, the switches have no effect (locking or unlocking) and the manual lever won't budge (either way) by hand. Anybody in the back seats is effectively trapped in the rear unless they climb over the front seats, or a person in the front seat lets them out.
The idea, of course, was to prevent a child (or pet) from accidentally locking out their parent (child) or owner (pet) or even worse unlocking and opening the door while the vehicle was in motion. Good idea, most of the time, but I want to override this feature when I do not have children or pets in the car.
Some of you mentioned the idea that a PO (previous owner) modified the car, not so. I just got the car from a family member who was the original owner. The owner's manual was ripped off a few years ago! The doors have never been modified or replaced. There are NO switches, levers, or even holes in the door jambs or doors near the latch mechanisms on any door in the car, except for a grill (air or vent?) on the rear part of each rear door jamb. I know that most cars with this feature have a nylon or metal lever to engage or disengage the child safety feature, but this car seems to have none. That's is why I am at a loss to figure this out, and came to the newsgroup for help. Even the original shop manual (which I ordered at the time the car was originally purchased) has no mention of this safety feature, let alone any indication of how to override it.
It seems that anybody in the back of the car could be prevented from emergency exit in any number of unfortunate situations because the only way out of the car would be through one of the front doors (probably over the bodies of anybody sitting in the front seat! This seems ridiculous to me.
So, once again, if anybody knows how to control this annoying feature, I'd appreciate the secret. I have received many responses off line, but they all point to a non-existent lever in the rear door(s).
TIA for any assistance, (again, sorry for the bandwidth but this really strikes me as a safety issue.)
Bob Giel snipped-for-privacy@earthlink.net
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Okay, this is a better explanation of the information you really want or need.
I do not believe there is any way short of unplugging or disabling totally the automatic locking feature of these rear doors.
You are going to have to make a decision: if you think this is enough of a safety issue for you to not want it to be active when the engine is running and in gear, then disconnect the rear locks and accept the loss of the safety feature of self-locking of the rear doors for children etc. when driving.
If my memory serves me, there is a switch on the shift lever in the steering column that operates this feature as well as others over a single wire to the locks. It does not operate on the front locks with one wire and the rear locks on another so you could disable one or the other by putting a switch in the wire(s).
Now, I am SURE there is some mechanic in a shop near you that CAN do what you want by tearing off door panels and switches and running new wiring from the front to the back doors. It just depends on how deep your pockets are for this.
I have always told my customers: "nothing is impossible for me to do, it just depends on how much money you have to spend."
I really hope this helps....

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but
and
My father has one of those cars, but it's not the station wagon it's the sedan. The door locks do not operate as you describe. With engine off and car in park passengers in the rear can unlock their doors by pressing the unlock button.
I suspect that this is a computer feature that was accidentally turned on by some combination of ignition key turning and pressing of lock buttons.
your best bet is getting the owners manual. Many owners manuals are available on Ebay and from local wrecking yards, call around. I seem to recall that some details of the remote keyless entry were present in the owners manual but not in the service manual. Unfortunately, my father has both owners and service manual and he does not live nearby
Ted
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Bob,
Well that was a whole heap of information. Sure does clear up the confusion about you not finding child security switches in the door jambs.
Here is what the owners manual for mothers 91 Cadillac says about automatic door lock option. Of course this may not apply to your Century Wagon.
Automatic Door Lock Option
" If you have this option, just close your car doors, turn on the engine and move the gear selector to Drive. All the doors will lock. If someone needs to get out out while your in a drive position, just have that person use the manual or power lock button.
When the door is closed, it will not lock. Just have that person lock the door again. When you stop and move your gear selector to Park your doors will unlock."
Sounds like you may ot may not have a problem with the automatic door locks. Or GM pulled a sneaky and made it this way unbeknownst to the public who never spoke up and complained about the system.
I would first check with Buick to see if anybody there can tell you if this is the way the Auto Door Lock System is supposed to operate on your car.
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