The door locks on my wife's 2000 S70 GLT will lock but not unlock? When trying to unlock by using either the key or door switch the passenger side door and the rear doors will not unlock with a few intermittent exceptions. When attempting to unlock you can see the lock ***** try to move up but then they immediately go back down to the locked position. On occasion the one of the aforementioned doors will in fact unlock as normal. I replaced the master window and lock switch on the driver’s door but that did not help. Has anyone experienced a similar problem?