1993 Honda Civic Owner's Manual - Page 27

Carbon Monoxide Hazard Your car's exhaust contains carbon monoxide gas. You should have no problem with carbon monoxide entering the car in normal driving if you maintain your car properly. Have the exhaust system inspected for leaks whenever: The car is raised for an oil change. You notice a change in the sound of the exhaust. The car was in an accident that may have damaged the underside. High levels of carbon monoxide can collect rapidly in enclosed areas, such as a garage. Do not run the engine with the garage door closed. Even with the door open, run the engine only long enough to move the car out of the garage. With the trunk lid open, air flow can pull exhaust gas into the trunk. This can get into your car's interior and create a hazardous condition. If you must drive with the trunk lid open, open all the windows and set the heating and cooling system as shown below. If you must sit in your parked car, even in an unconfined area, with the engine running, adjust the heating and cooling system as follows: 1. Push the 2. Select the button. mode. Carbon monoxide gas is toxic. Breathing it can cause unconsciousness and can even kill you. Avoid any enclosed areas or activities that expose you to carbon monoxide. 3. Turn the fan on high speed. 4. Set the temperature control to a comfortable setting. Driver and Passenger Safety