Abstract: A remote keyless entry (RKE) system for a vehicle. The system includes a RKE receiver configured to be installed on a vehicle, and a nomadic device equipped with an RKE transmitter configured to transmit autonomously a RKE message repetitiously in response to an initiation command. The nomadic device is able to be pre-armed the nomadic device while outside of the communication range of the vehicle to transmit periodically, repeatedly, or continuously the RKE message. Then, an operator can put the nomadic device in a pocket and proceed to within the communication range and, for example, have the trunk open without having to manually operate the nomadic device while within the communication range.

Abstract: A vehicle security system for a vehicle equipped with a passive keyless entry/passive start (PEPS) security system including a nomadic device configured to determine a present location of the nomadic device (e.g. key fob, smart phone), and a controller configured to control a security-status based on the present location. The controller determines the security status based on the proximity of the nomadic device in order to thwart theft of the vehicle using a relay attack.