What causes battery rundown in a 2006 Chevy Impala?

Answer 1

Well, specifically, on a 2006 Impala SS (V8) the engines are very robust (require a lot of cold starting amps) and the Original Engineering Manufacture (OEM) battery is not quite the greatest. I don't think there is an issue with your car, just that if you ever ran it down, one time, one jump start, on almost any battery, you should replace it before a year goes by. Particularly in cold weather. I could understand any battery going dead with the current electronics, but only if it sat around awhile. If it was the alternator, you would have (or should have) gotten a warning light. Long story short, original batteries are not the greatest and since my son is replacing his after two years, pretty much we are not the only ones. if you have an ONSTAR in the vehicle that you do not use ......I got a "recall" for my 2002 Impala and they said that the ONSTARs that are disconnected are not completely disconnected and needs to be completed as they are draining perfectly good batteries because if you accidently push one of the ONSTAR buttons you don't realize that its still "on" and keeps taking from the battery. I had my "used" 2002 about 1 1/2 yrs and needed a brand new battery cuz mysteriously it kept losing its charge. We are taking ours in for the recall Michele Kenmore NY