2003 Pontiac Sunfire Owner's Manual - Page 214

When you put the fuel cap back turn it to the right on, (clockwise) until you hear a clicking sound. Make sure you fully install the cap. diagnostic system can The been left off or improperly determine if the fuel cap has to installed. This would allow fuel evaporate into the atmosphere. SeeMalfunction lndicator Lamp on page 3-29. Filling a F. rtable Fuel Container Notice: If you need a new fuel cap, be sure to get the right type. Your dealer can get one for you. If you get the wrong type, it may not fit properly. This may cause your malfunction indicator lamp to light and may damage your fuel tank and emissions system. See "Malfunction lndicator Lamp" in the Index. Never fill a portable fuel container while it is in your vehicle. Static electricity discharge from the container can ignite the gasoline vapor. You can be badly burned and your vehicle damaged if this occurs. To help avoid injury to you and others: 0 Dispense gasoline only into approved containers. Do not fiil a container while it is inside e vehicle, in a vehicle's trunk, pickup bed or on any surface other than the ground. 0 Bring the fill nozzle in contact with the inside of the fill opening before operating the nozzle. Contact should be maintained until the filling is complete. Don't smoke while pumping gasoline. 5-9