This is part of a global recall of 64,186 Volts.
"If a driver exits the vehicle and inadvertently leaves the vehicle 'on' by failing to react to cues and warning chimes emitted by the vehicle, the vehicle's high-voltage battery will drain after a period of time and the gasoline engine will begin to run," GM said in a statement provided to Edmunds on Thursday. "If the gas engine runs for a long period of time within an enclosed space, such as a garage, carbon monoxide could build up."
GM said it is aware of two injuries both related to carbon monoxide buildup.
Chevrolet dealers will update software that will limit the amount of time a vehicle can be left idling in the "on" or "run" position. A date has not been set for the recall. Owners can contact Chevrolet customer service at 1-800-222-1020.
No information about the Volt recall has been posted on the Web site of the National Highway Traffic Safety Administration, which oversees vehicle safety in the U.S.
Edmunds says: Affected owners will have to wait for an official recall notice before scheduling a service appointment. But if you have an immediate concern, contact your dealer now.