Significant researches over the course of the last years have contributed to the invention of new technological features installed in vehicles. They range from safety toentertainment features for which costumers are more than willing to pay. Many devices are involved in today's cars to warn the driver and show information about the environment like car rear view cameras, pedestrians detectors, lane crossing detectors, external temperature sensors, etc. Among all, modern cars have temperature sensors to measure and display the ambient temperature to the car dashboard for the driver. It is a very appreciated feature and despite appearing to be provided by a not so complex device, it has to be properly managed.