See also:

Blank Screen
The message center display will be blank after cycling through all of the Info menu items. ...

Intelligent access key (ia key)
Your vehicle is equipped with two intelligent access keys which operate the power locks and the remote start system. The IA key must be in the vehicle to activate the push button start syste ...

Battery
Your vehicle is equipped with a Motorcraft maintenance-free battery which normally does not require additional water during its life of service. Note: If your battery has a cover/shield, make ...