Service Battery Charging System- Battery Saver Active (NOOB QUESTION) - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

thebluecamaross · 05-07-2022, 06:18 PM

Hello All,

My 2010 Camaro SS got the "service battery charging system" on Wednesday as I was arriving home. Didn't drive the car again until Friday, when I went for a joy ride.

Again, the "service battery charging system" came up, stayed on for the rest of the drive.

About 30 mins in I got the "Battery Saver Active" message, but none of my other electrical components seemed to stop working i.e. radio, lights, dash cam.

When I was arriving home, my headlights shut off, along with my radio and other electrical features, the Stability Trak message came up too.

Is this typical for battery failure or alternator failure, OR BOTH? Do you guys have a good method to diagnose either or?

Thanks guys!

hunter1660 · 05-07-2022, 06:26 PM

Sounds like the alternator is shot

SOLUKY · 05-14-2022, 09:54 AM

Go to Auto Zone, they will test for you.

tmjump · 05-16-2022, 10:49 AM

Hello, not sure if this is related. I have a 2015 Camaro RS. It keeps saving Battery Savar Mode Active as well. But my voltage upon once I start the car is 14.5 volts. And stays about the same during the rest of the drive.

0stones0 · 05-16-2022, 11:08 AM

Quote:

Originally Posted by thebluecamaross

Hello All,

My 2010 Camaro SS got the "service battery charging system" on Wednesday as I was arriving home. Didn't drive the car again until Friday, when I went for a joy ride.

Again, the "service battery charging system" came up, stayed on for the rest of the drive.

About 30 mins in I got the "Battery Saver Active" message, but none of my other electrical components seemed to stop working i.e. radio, lights, dash cam.

When I was arriving home, my headlights shut off, along with my radio and other electrical features, the Stability Trak message came up too.

Is this typical for battery failure or alternator failure, OR BOTH? Do you guys have a good method to diagnose either or?

Thanks guys!

Quote:

Originally Posted by tmjump

Hello, not sure if this is related. I have a 2015 Camaro RS. It keeps saving Battery Savar Mode Active as well. But my voltage upon once I start the car is 14.5 volts. And stays about the same during the rest of the drive.

Battery check for sure. OP could be alternator, but again, test battery, as well.
Tmjmp, sounds like your alternator is working correctly at 14.5. Original battery?

HDRDTD · 05-16-2022, 02:27 PM

Quote:

Originally Posted by tmjump

Hello, not sure if this is related. I have a 2015 Camaro RS. It keeps saving Battery Savar Mode Active as well. But my voltage upon once I start the car is 14.5 volts. And stays about the same during the rest of the drive.

If the voltage is staying at 14.5 through the rest of the drive, then that's an indication that your battery is forever charging. After a while, the voltage should drop to 12.5 or so, when it reaches a full charge.

The charging system on our Camaro's is a 'start' charging system, where it only raises to 14.5 when the battery is getting a bit low, charges at 14.5 till it's charged, then drops down to 12.5 or so.

In your case, it seems it's always charging, indicating your battery it's getting a bit weak and made need to be changed.

ticowarbird · 01-20-2024, 09:43 AM

I’m in the same boat. Yes I know this is an old thread. Changed alternator to HO. Changed starter. Changed battery. Installed ground from starter to body. Changed spark plugs in case those were interfering with signal. Have to go through checks wires and ground but something still causing issue. Even starting to look at ECM since I heard that could be going bad and causing the issue.

Mouse330 · 01-24-2024, 04:27 PM

The BCM and the ECM will send a serial data message to the driver information center and display this message, The SERVICE BATTERY CHARGING SYSTEM message is commanded on when a charging system DTC is set/current, Scan for codes.

ticowarbird · 01-26-2024, 06:24 AM

Quote:

Originally Posted by Mouse330

The BCM and the ECM will send a serial data message to the driver information center and display this message, The SERVICE BATTERY CHARGING SYSTEM message is commanded on when a charging system DTC is set/current, Scan for codes.

The P0621 code is logged when the powertrain control module (PCM) detects a malfunction with the generator lamp control circuit.Got the code once on a scan tool and haven’t seen it since but the problem message still shows. Have an ECU in the mail, already changed spark plugs, starter, alternator, added ground from starter to body.

1JEWLDSSRS · 01-28-2024, 12:06 PM

Quote:

Originally Posted by HDRDTD

If the voltage is staying at 14.5 through the rest of the drive, then that's an indication that your battery is forever charging. After a while, the voltage should drop to 12.5 or so, when it reaches a full charge.

The charging system on our Camaro's is a 'start' charging system, where it only raises to 14.5 when the battery is getting a bit low, charges at 14.5 till it's charged, then drops down to 12.5 or so.

In your case, it seems it's always charging, indicating your battery it's getting a bit weak and made need to be changed.

Some great info on our charging systems..

https://www.camaro5.com/forums/showthread.php?t=245282

05-07-2022, 06:18 PM	#1
thebluecamaross Drives: 2010 Camaro 2SS/RS ABM Join Date: Apr 2017 Location: Miami Posts: 45	Service Battery Charging System- Battery Saver Active (NOOB QUESTION) Hello All, My 2010 Camaro SS got the "service battery charging system" on Wednesday as I was arriving home. Didn't drive the car again until Friday, when I went for a joy ride. Again, the "service battery charging system" came up, stayed on for the rest of the drive. About 30 mins in I got the "Battery Saver Active" message, but none of my other electrical components seemed to stop working i.e. radio, lights, dash cam. When I was arriving home, my headlights shut off, along with my radio and other electrical features, the Stability Trak message came up too. Is this typical for battery failure or alternator failure, OR BOTH? Do you guys have a good method to diagnose either or? Thanks guys!

05-07-2022, 06:26 PM	#2
hunter1660 Drives: 2011ss/rs camaro Join Date: Sep 2011 Location: florida Posts: 1,261	Sounds like the alternator is shot __________________ . OBX LTH,Rotofab,Magnuson Heartbeat.AEM wideband, HP Tuners

01-20-2024, 09:43 AM	#7
ticowarbird BOHIC Drives: 2010 Camaro SS "Enola" Join Date: Jun 2014 Location: Winter Springs, FL Posts: 562 View My Garage	I’m in the same boat. Yes I know this is an old thread. Changed alternator to HO. Changed starter. Changed battery. Installed ground from starter to body. Changed spark plugs in case those were interfering with signal. Have to go through checks wires and ground but something still causing issue. Even starting to look at ECM since I heard that could be going bad and causing the issue. __________________ What else can I do to my Camaro?

05-14-2022, 09:54 AM	#3
SOLUKY Drives: Camaro 2SS Join Date: Jul 2020 Location: Dallas, Texas Posts: 54 View My Garage	Go to Auto Zone, they will test for you.

05-16-2022, 10:49 AM	#4
tmjump Drives: 2LT Camaro RS Join Date: Jul 2013 Location: Brooklyn, New York Posts: 7	Hello, not sure if this is related. I have a 2015 Camaro RS. It keeps saving Battery Savar Mode Active as well. But my voltage upon once I start the car is 14.5 volts. And stays about the same during the rest of the drive.

01-24-2024, 04:27 PM	#8
Mouse330 Drives: 2011 2SS, 2006 GMC Sierra Join Date: Jul 2019 Location: MA Posts: 251	The BCM and the ECM will send a serial data message to the driver information center and display this message, The SERVICE BATTERY CHARGING SYSTEM message is commanded on when a charging system DTC is set/current, Scan for codes.