Locked keys in car help?

Hi
It sounds like the drivers door central locking motor has failed as in VW's this is the master lock that powers the rest of the locks
Hope this helps Nick

Kevin, Ignition and door locks are different cut keys on 1966 Buick. the ignition key was square/octagon shape and the door lock/trunk key were oval.
Below are links that show the difference.
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Buick Skylark Locks Hardware eBay
Door Lock 1965 66 Buick CARS LLC
1966 BUICK LESABRE 5 6L 340cid V8 Door Lock Cylinder RockAuto

Susan, have you used that same key to lock and unlock doors before. If not it may not be correct key, as some one may have changed the ignition and did not match key to door locks. If key has worked for you in the past, visit a lock smith and have him lubricate all the locks to get tumblers working properly again.
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try spraying blaster in lock than working the lock with the key be careful not to brake key off in lock i put vise grips on key and gently turn key in lock. iif key starts to bend i stop and let lube set in lock longer. make sure you have more than one key just in case you do brake it.

It seems that you have either twisted key or broken lock. perhaps both. So I would go to nearest locksmith and try to get them to pull key out, and then switch the lock or cut the key in lock, then drill the lock and pull it of. Pull back new lock.

how do I reset one of two keys that the unlock,lock,trunck does't work but the key turns the engine over.

drill out the lock with a 5 mm drill bit to the depth of the key, the drill will turn the lock and probably start the car when it is drilled out just enough and the key will still work in the lock if you push it right in only any key will now fit and this key will fall out going round corners... you can get the ignition barrel and key for about £25 from car breakers, and now the lock is drilled once you push in the buttons on the bottom of the barrel it will come out easily = theres always an escort on the breakers, any MK4 escort lock will fit, get the door locks and keys too if you dont want more than one key with the car - having mismatched keys reduced the resale value also.

Can u open the doors using the ignigtion key or is it two seperate keys?

V50 2005 and similar year have this problem.

The ignition key has two parts:
- remote control (with battery)
- RFID identification (without battery)

Car has two separate locks.
The upper lock is where you put the key inside and turn to ignite.
The lower lock is right at the steering wheel which electronically locks the wheel.

The "upper lock" sometimes refuses to recognize the key. It might be a bad contact or bad mechanical placement. Typical problem for this car.
Try hitting the dashboard and the lock with your fist few times (not too much!). If there was only a bad contact, the car may start a few times.

If you have dropped the ignition key from 1m of height (or higher) to the concrete, the RFID module inside may not have survived. Try with spare key.

If nothing helps, take the car to the volvo shop to change the upper lock. That was my case...
The lock looks like this:
http://www.shrani.si/f/b/Px/2shRAbPh/kljucavnica2005.jpg

The key should turn if you turn wheel as much as you can while turning key