LS4 Performance - Battery saver active

hey guys new to this form, let me do a short introduction my name is eduardo live in Ligonier IN, Have a blue 06 grand prix gxp completely stock.
The problem: Recently my car has been dying on me. I had taken it to auto zone to test the battery and the had said that it was the alternator so i had changed it and it worked fine for 2 days then it started dying on me again. After that i had noticed that that in the dic it said Battery charging failure something like that then it went to battery saver active. I had change the battery that same day and it worked for 2 days now its doing it again idk what it is i don't have a stereo system idk what is draining my battery HELP!!

These cars have that problem , nothing we can confirm fixes the problem.
Swap the battery to an optima redtop , that should help.

These cars have that problem , nothing we can confirm fixes the problem.
Swap the battery to an optima redtop , that should help.

yellow top is way better imo their is a few members on here that ran into issues with the red top

mmm but the thing is that i already replaced the battery, and once installed I can't return it

You should be fine. Next time it happens check your voltage on the dic. I bet it's a touch high. If so don't worry about it.

after one whole day of not turning it on i turned it on with out jumping cables, In the DIC it had 10.80-10.90 volts on the battery, and as soon as i turned it on the Battery server turned on as well

Well crap I'm wrong. You got problems. I'd either disconect the battery and charge it, then leave it disconnected and see if it holds a charge. Or take it back to Autozone and have them test there alternator and battery.

Check your grounds. There's a thread on GMLS4.com that explains all the places you need to check, as it has a huge impact on why these batteries die.

I've gotten brand new alternators that were duds. Just saying :D

I had a similar issue with mine replacing the battery and everything still have the battery saver mode come up on the dic. It ended up the the BCM was faulty dealership replaced it under warranty and haven't had any issues since. hope this is some what helpfull

Hey guys thanx for the tips recently i had taken it to my local Pontiac and the could not find nothing wrong with it. My battery volts keeps getting worse they are now at 8-9 volts. Oh what is the BCM?

Body control module. Try pulling fuses of things you suspect of draining the battery. Or take the battery out over the weekend, charge it and see if it holds a charge to rule out a bad battery.