My drivers side door won't open with a key anymore, passenger side works fine. Janette

the valet key doesnt have a transponder chip in it, so it will allow physical turning of keyways and operations, but will not disable the alarm and often wont disable the immobilizer.

sorry to say i think you will need to get an autolocksmith , or main dealer to get you a functioning key with transponder chip mapped to your cars rfid system that will allow alarm to be enabled /disabled

1) Key turns but dose not unlock door. This means that the rod that goes to the back of the lock has came off. This also means that is the reason door is not unlocking with the remote as it pops the lock rod inside the door which pushes the lock open.
2) Key does not turn lock at all but works passengers side door. This means that the locks has been changed in the door, but that doesn't sound like the problem as you say the remote doesn't open the drivers side door so more than likely the rod has came off the back of the lock

try takeing the door panel off and check to see if the rod came out of the lock button.

Check for a bad switch in the door.
Water leaking from the rag top-door seal joint often drains into the switch, causing a short or bad contact eventually.

Pull the door panel and find the cause, it can be a faulty lock motor or the linkage rod has come off due to a broken retainer clip.

change battery in remote

Try using the Keyless Entry Pad

If that won't open the drivers door,
then you will need a scan tool, to see
if it can comunicate with the DDM -
Drivers Door Module.

That may be a possible problem, if
everything else works

simple link rod has come adrift take the liner off and look

BMW and Mercedes had the same problem. They changed the type of grease used to assemble the door latch mechanism.

WD40 Squirted into the lock area often does the trick.

Roll down the window and aim nozzle/straw at interior latch mechanism.

Put WD40 straw into key hole and squirt .