Every car, not just Corvette is capable of discharging a battery under an almost unlimited number of circumstances. DBS (coined Dead Battery Syndrome) was a phenomenon specific to some of the 2005 manual transmission cars where a perfectly charged battery on an otherwise normally operating car would discharge in less than 48 hours to completely dead. This is no longer a concern on later model year Corvettes. Every DBS case results in a dead battery, not every dead battery is DBS.
The OEM battery on average can go about 27 days on a charge without being driven. You can theoretically end up with a dead battery driving every day for very short trips as you will use more than you will replace with each start up.
The C6 is the most electrically demanding Corvette yet. Virtually everything about the car and the systems places more demands on the battery and charging system. Even the simple act of opening the door drains the battery with the touch pad latch and fob interrogation system. The tire pressure system is different than that of the C5, so on and so on.
There is no known issue specific to Onstar that I'm aware of. Frankly, I think someone was a little misinformed that told you this. Don't lose any sleep over it.
|