cable snap on the brake, or fastener broke off. At first I thought a weight came loose until you said the pedal went to the floor.
On the other issues, sounds like the SAM, but I thought I would throw this out there too: On both my GTO and my wife's Jaguar, the car does weird things if the door is opened while it is locked, or it is locked/unlocked in a strange combination. In the Jag, this anti-theft confusion has disabled the radio/nav done other weird things. However, in both cases, it's cleared up when I've turned the car on and off through one cycle and then locked and unlocked it in the conventional order (close door, hit remote, hit remote, open door).
Hope this helps,
LR
On the other issues, sounds like the SAM, but I thought I would throw this out there too: On both my GTO and my wife's Jaguar, the car does weird things if the door is opened while it is locked, or it is locked/unlocked in a strange combination. In the Jag, this anti-theft confusion has disabled the radio/nav done other weird things. However, in both cases, it's cleared up when I've turned the car on and off through one cycle and then locked and unlocked it in the conventional order (close door, hit remote, hit remote, open door).
Hope this helps,
LR