This paper proposes a sensing system for vehicles using an auto- motive scanner with wireless connection for sending data. The connection to the scanner provides data that is sent to a cell phone via a Bluetooth connection and to the cloud . In order to provide a response to the driver as soon as an abnormality appears, an appli- cation was created to emit a synthesized voice warning. The results showed that the driver, through the synthesized voice messages and the system interface, was previously able to become aware of the abnormalities of the vehicle and carry out preventive maintenance.