Abstract: Now a day, due to status symbol everyone is trying to purchase their own four wheelers. All the vehicles run by Petrol, Diesel, and CNG etc. Mostly the people prefer the AC vehicle, in these vehicles’ the rate of fuel consumption is high and also extracting huge amount of heat from the atmosphere. It often happens during rainy season, in heavy traffic area the pollution level is very high if the engine is ON for long time the vehicles are on standing mode. Then due to this reason the toxic gas is emitted inside the vehicle that is injurious to the health of human. In this paper, we are planned to fuzzy logic to make a one gazette which controls the emission of toxic gases, smoke inside the vehicle and avoid drunken drive. Sometimes during the long drive or whole night driving driver may feel sleepy which is also dangerous for passengers, through the blinker system and eye lid blinking if the count is less ,then auto alarm which may indicate the toxic gas ,smoke level through alarm sound must be made alert for drivers and passengers. And if the driver is drinking then through the control unit the vehicle door is not opening and if door is not locked then engine is not ignited. If the toxic gas level is increasing then through auto control system the window will open while the level is decrease then it may be closed.