PATS Front Antenna

WARNING: This page is about a different car, the 2018 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Some brands/types of mobile phone or laptop computer chargers may cause interference that could lead to a PATS concern if the passive key is within a few inches of the charger and the No Key Detected message displays in the message center. If a concern is observed, move the passive key away from the charger and attempt to transition the ignition on.

The PATS front antenna is wired to the BCM. When activated by the BCM, it transmits a low frequency signal that activates a passive key.

A programmed passive key must be within the passenger compartment or cargo area for the PATS to detect the passive key and allow the ignition to transition from OFF to ON.

If a passive key is placed in the far outside edges of the interior, such as above a sun visor or in a door map pocket, the vehicle can experience a PATS concern. If the passive key is located in one of these areas and there is a PATS concern, move the passive key out of the area and attempt to transition the ignition on. If the key is outside the range of the keyless entry rear antenna and PATS front antenna when the START/STOP button is pressed, the No Key Detected message displays in the IPC message center.