Passive Key
WARNING: This page is about a different car, the 2018 Ford Focus. However, it is still accessible from the selected car via links, so may be relevant.
The passive key incorporates both the PATS and the RKE transmitter functions in a single device.
During key programming procedures, the PATS and RKE transmitter Identification (ID) of a passive key are both programmed. A maximum of 8 passive keys can be programmed.
If the passive key battery fails, the passive key contains a key blade to unlock the door manually. Additionally, the passive key must be placed in the PATS transceiver backup slot to start the vehicle.
The passive key also contains a removable mechanical key blade that can be used to unlock the driver door.