2011 Chevrolet Volt Owner's Manual - Page 355

Driving and Operating The system may be thermally conditioning the battery during any of the states above, requiring electrical energy to be transferred to the vehicle. If the vehicle is plugged in and vehicle power is on, the CSI will be on solid green. The same is true during a remote start if the vehicle is plugged in. If the vehicle is plugged in and the CSI is off, a charging fault has been detected. See "Charge Cord Status Indicators" later in this section. This chart indicates vehicle feedback when the charge cord is plugged in. Charging Status Indicator Solid Green Long Flashing Green Short Flashing Green Yellow (Upon Plug‐in) Sound One horn chirp Two horn chirps None None Action/Reason 9-53 Charging has begun. Charging is delayed, scheduled to begin later. Charging is complete. Charge cord is okay and vehicle is not yet charging. Charge cord is okay, but vehicle is not charging. See Malfunction Indicator Lamp on page 5‑21. Insufficient time to fully charge by departure time. Charge cord connection should be checked. Yellow (For Extended Time None Period after Plug‐in) Solid Green or Long Four horn chirps Flashing Green None (Upon Plug‐in) None