A mobile vehicle communications system adapted to perform a method of cellular reselection using vehicle telematics unit coupled to a vehicle antenna. The method includes: performing a measurement of a reference signal from a serving cell that is connected to the telematics unit; determining whether to perform a measurement of a target cell based on both a serving cell signal strength value (Srxlev) and a measured serving cell signal quality value (Qqualmeas); and when the measurement of the target cell is performed, then determining whether to reselect to the target cell based on cell selection values of the serving and target cells.