OnStar Power Modes

During normal vehicle operation, the system is in high power mode. After the ignition switch is turned OFF, the system will go into low power mode for 48 hours, after that the system will switch to sleep mode to conserve battery power. When in low power mode, the system will switch back to the high power mode for 1 minute out of every 10 minutes for a period of 48 hours. Remote operation is only available during the 1 minute period of high power operation. When the system is in sleep mode, remote operation is not possible.