The key with the buttons has a kind of rechargable battery in it which charges in the key cylinder as I understand. So if your X has been sitting parked for long so have the keys, killing the battery in it.

The grey valet key does not use a battery.
To turn off the abs and other lights......
#1 Start the engine....
#2 Turn the steering all the way to the left and then all the way to the right.

Im not sure about the trans failsafe. Hopefully it will go away soon.