Cadillac CTS-V - Dead battery
05-18-2012, 09:58 AM
Walked out to the v this morning and hit unlock on the keyfob, nothing. Get in the car no lights come on no battery power at all. I just replaced the battery a month back so it's not the battery. I have not had time to mess w it yet bc of work. What would be some suggestions of wht could cause the car todo this?
I drove it yesterday to and from work no issues. Parked it last night. Didn't leave any lights or other electronics on.
I hope the ground cable is loose bc other than that I don't know what could cause this.
Any help will be appreciated.
05-18-2012, 10:02 AM
Make sure the terminal bolts are tight. Pretty notorious for them to loosen up and back out sometimes. Happened to be on multiple occasions with other GM products with side post batteries. New bolts are cheap, maybe $3 for both.
05-18-2012, 10:59 AM
Take it back to the parts store to check the battery on their load/test stand, to be sure it's not the battery.
Then, slow charge the battery until it's full.
Reconnect it to the V, and monitor the voltage every have hour, to see if you have some kind of parastic draw that's pulling down the battery.
05-18-2012, 12:12 PM
There is a bulletin about the overhead dimmer switch.
Make sure it is fully off.
If its the OE battery, it is an AGM (glass mat) battery. They usually fail in this manner.
05-18-2012, 03:13 PM
Got home and it cranked lol. Tightened the battery bolts. It I will check out the other possibilities listed. Thanks for the help.
05-18-2012, 03:27 PM
Here is an interesting little story about the Group 101 battery.
It was developed to meet an engineering requirement, mandated to keep DELCO in business.
So it couldn't be "outsourced".
Never wonder why GM went belly up.
05-18-2012, 09:27 PM
haha i replaced the over priced 101 with some other generic autozone brand with more cranking amps and 30$ cheapers.. i think its a 78
05-18-2012, 10:39 PM
i got the group 78 battery as well. saved monies. it still is cranking so maybe it was just the terminal being loose.
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