Ford Mondeo Owner's Handbook Manual page 43

Disabled keys
Any keys left inside the vehicle interior
when it is locked will be disabled.
A disabled key cannot be used to turn the
ignition on or start the engine.
In order to use these passive keys again,
they have to be enabled.
To enable all your passive keys, unlock
the vehicle using a passive key or the
remote control unlocking function.
All passive keys will then be enabled if the
ignition is turned on or the vehicle is
started using a valid key.
Locking and unlocking the
doors with the key blade
Type 1
1
E78284
1. Slide the release slider in the direction
of the arrow and pull out the key blade
with your thumb.
2. Remove the key blade and insert it
into the lock.
Locks
Type 2
1
E87964
1. Carefully remove the cover.
2. Remove the key blade and insert it
into the lock.
2
41
2
1