I dont know if anyone else had there battery not work when trying to start there car in a cold morning... But its a brand new 09 SS/TC that i got in Nov.

My 08 LS didnt have any probs... But i got a new battery replaced under warrenty

 

Depending on the tempature and the state of charge of the battery, one of the cells could have been frozen. Low charge on the battery is eayser for the cells to freeze.

 

I had a bad cell on my battery when I bought my car, even tho it was cranking just fine. I replaced the battery curtosy of my dealer even tho its out of warrenty.

 

Same ****** problem with mine, man.

https://www.cobaltss.net/forums/problems-service-maintenance-69/random-dead-battery-201962/