Abstract: A vehicle collision warning system integral with or otherwise affixed or mounted to a first vehicle that includes a proximity sensor to detect an approaching vehicle within a predetermined safety zone and emits a warning signal to the driver of the approaching vehicle. Exemplary embodiments to not also warn the driver of the first vehicle when the approaching vehicle is detected within the safety zone of the first vehicle.

Abstract: A trailer light monitoring module is configured to electrically couple with lights on a trailer and include an input configured to receive electrical power from a battery; an output configured to electrically couple with lights on a trailer and selectively communicate the electrical power from the battery; a learning button, the activation of which determines a quantity of possible channels through which trailer lights could receive electrical power, and also determines how many of the quantity of possible channels actually receive electrical power; and a plurality of channel diagnostic blocks each including a tunable current sensor having a variable resistor that is tunable based on an output voltage received.