2013 Chevrolet Volt Owner Manual - Page 213

Driving and Operating If the FMM request was delayed for one day, FMM will start at the next vehicle start and display the FMM Notification screen on the center stack display. If FMM is required and the fuel level is low, FMM may eventually empty the fuel tank if fuel is not added. This will result in reduced, or no power. An adequate fuel level must be maintained in the vehicle to keep it operational. See Propulsion Power Messages on page 5‑49. 9-27 Engine Exhaust WARNING (CONTINUED) . { WARNING Engine exhaust contains carbon monoxide (CO) which cannot be seen or smelled. Exposure to CO can cause unconsciousness and even death. Exhaust may enter the vehicle if: . The vehicle exhaust system has been modified, damaged, or improperly repaired. There are holes or openings in the vehicle body from damage or aftermarket modifications that are not completely sealed. . The engine is running in Extended Range Mode in areas with poor ventilation (parking garages, tunnels, or deep snow that may block underbody airflow or tail pipes). The exhaust smells or sounds strange or different. The exhaust system leaks due to corrosion or damage. (Continued) If unusual fumes are detected or if it is suspected that exhaust is coming into the vehicle: . Drive it only with the windows completely down. Have the vehicle repaired immediately. . . . Never park with the engine running in Extended Range Mode in an enclosed area such as a garage or a building that has no fresh air ventilation.