Console Active Antenna
WARNING: This page is about a different car, the 2010 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
The console active antenna is used to transmit a low frequency challenge to the transmitter in the event that the transmitter does not respond to the console passive antenna during a starting event. The active antenna is also used during transmitter programming events.
The keyless entry console active antenna is located in the center console. The console active antenna is controlled by the RCDLR. It has a small pocket next to it where the transmitter can be inserted if its battery is dead, weak, or the RF signal is being interrupted. If properly inserted in the pocket (buttons facing forward), the active antenna should always cause the transmitter to respond properly.