2012 service battery charging system message


Asked by Dec 07, 2014 at 12:18 PM about the 2012 Chevrolet Tahoe

Question type: General

i have a 2012 chevy tahoe for the past couple of days i have to have someone jump me
off. when i take it to an auto store they hook it up and say everything looks fine with the
battery. today the "service battery charging system" message come on. I forgot to
mention that when i get jummped off everything runs fine. I hope this is not something
that will cost me a ton of money, plus its only 2years old!!

6 Answers


What test are they performing? The proper test is a load test when the battery is fully charged. If that turns out ok then hook up a millimeter to the battery while the car is running. Set on volts DC, you should have 13.5-14.5 volts. If not then the alternator is the problem.


They hooked up a machine to the battery while the car was on. He said it looked fine. But why wouldnt it be the battery if when someone jumped me off it starts up no problem. I will take it to the mac. Tomorrow I just wanted to prepare my self for what was to come


Thank you for your help


Sounds like they did the alternator test that I described. I still think a battery load test is in order. They have a device that puts a lode on it for no more than 10 seconds. If it is less than 9 volts or so then the battery is bad. Would love to know the fix. If you would post it it might help someone.thanks and merry christmas

2 of 2 people found this helpful.

I will definitely post the answer. I will be taking it in first thing in the morning. Thank you souch for your input. Merry Christmas to you as well.


Turns out it was the battery. Thank goodness. Thank you for all your help

2 of 2 people found this helpful.

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