A vehicle includes a power detector for detecting a power state of the vehicle, a transmission detector for detecting a transmission mode of the vehicle, a door detector for detecting a door state of the vehicle, and a processor for generating an inadvertent ignition warning by comparing the power state, the transmission mode and the door state with an inadvertent ignition reference, for generating an inadvertent ignition level according to the accumulation of the generated inadvertent ignition warning, and for providing an inadvertent ignition warning message corresponding to the generated inadvertent ignition level.