Abstract: An apparatus for detecting the presence of an approaching train, includes a warning indicator, a receiver for receiving a brake system status signal transmitted from an approaching train, and a relay for coupling a voltage potential to the warning indicator when the brake system status signal is received by the receiver, wherein the warning indicator, the receiver and the relay are positioned within a passenger vehicle. Also there is a method for detecting the presence of an approaching train by detecting a brake system status signal originating from the train.