Backup Antenna
WARNING: This page is about a different car, the 2014 Lincoln MKX and 2014 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
If the battery inside the IA key is weak, damaged or if excessive ambient Radio Frequency Interference (RFI) prevents communication between the RFA module and the IA key, the backup antenna located in the glove box provides a secondary means for the RFA module to validate the IA key and authorize use of the vehicle. The backup antenna uses passive radio frequency identification to exchange signals with the IA key, similar to the way a encoded Passive Anti-Theft System (PATS) key and transceiver operate. For information on the IA key and backup antenna, refer to ANTI THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) .