PATS Center Antenna
The PATS center antenna is wired to the BCM. When activated by the BCM, it transmits a low frequency signal that activates a passive key. This antenna serves a dual purpose in that it can detect a passive key in the backup starting location. The backup starting location is used to program passive keys and to detect a programmed passive key in the event the battery in the programmed passive key has failed.
A programmed passive key must be within the passenger compartment 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, PATS center antenna, and PATS center antenna when the START/STOP button is pressed, the No Key Detected message displays in the IPC message center.