Dead battery
I have a 2009 CTS, 82,000 miles. The car
was running fine on a 3 hr road trip and
had made a couple of stops. After one 20-
minute atop, the car wouldn't restart.
Called AAA and they jumped it. Said it was
the original battery (I bought the car used
and didn't think to check). The car started
immediately with cables but when tested
with AAA machine was told 'something'
was draining the battery. Came straight
home without turning the car off and made
it fine. Left in driveway overnight and it
naturally won't start now, not even to move
the seat back. Would the battery just up
and die? It jumps just fine, but is being
drained. I know I need to replace but could
there be something else as well?