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Acura MDX 2015 - "12 Volt Battery Charging System Problem"

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Acura MDX 2015 - "12 Volt Battery Charging System Problem"

 
Old 05-16-2019, 06:31 AM
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Angry Acura MDX 2015 - "12 Volt Battery Charging System Problem"

Last week, I got a warning on my Acura MDX - 2015 on the dashboard - "12 Volt Battery Charging System Problem".

I have searched Google and have not come across any conclusive answer regarding this message. I have driven the SUV about 200 miles after the message and there has been no issues so far.

I took it to the dealer and dealer wants to charge $190 for doing the diagnosis and more to fix the problem. I refused and am instead coming here to this forum to get advice.

1. What is the reason for this warning?
2. What is the fix for this? I came across some forum that suggested to replace battery charging module.
3. What is going to happen if I ignore this message? Will it impact alternator or battery in any way?

Thanks.
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Old 05-17-2019, 12:13 AM
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Originally Posted by Naveen Jain View Post
Last week, I got a warning on my Acura MDX - 2015 on the dashboard - "12 Volt Battery Charging System Problem".

I have searched Google and have not come across any conclusive answer regarding this message. I have driven the SUV about 200 miles after the message and there has been no issues so far.

I took it to the dealer and dealer wants to charge $190 for doing the diagnosis and more to fix the problem. I refused and am instead coming here to this forum to get advice.

1. What is the reason for this warning?
2. What is the fix for this? I came across some forum that suggested to replace battery charging module.
3. What is going to happen if I ignore this message? Will it impact alternator or battery in any way?

Thanks.
Bump for a answer

OP, if you dont get a answer here try taking it in for a diagnosis at a reputable Honda/Acura specialist. Shouldn't cost you more than $50-$60.
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Old 05-17-2019, 08:33 AM
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Many auto parts stores will check Your battery and charging systems for free.Call first.
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Old 05-17-2019, 02:12 PM
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Likely a battery foing bad or possibly a loose cable. Easy to check either way. If I let my Dosge Cummins sit over the winter I would get the dreaded light first time I would start it. Once the battery was charged it would go out.
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Old 05-17-2019, 06:06 PM
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Has the warning stayed on? Are you in Hot Weather?
I used to get a similar warning in my RLX after it had sat outside all day in 100 degree weather. It would come on after a few miles of driving, but go away some minutes later. Did not happen a lot, but probably a half dozen times
Nothing ever repaired and Dealer did not say that they saw warnings in diagnostics when I took it in for normal maintenance
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Old 05-17-2019, 09:12 PM
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Useful battery life is 3 to 4 years. If yours is original, it is the Prime Suspect.
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Old 05-18-2019, 05:52 PM
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Mine is original. Will get a new one today.

Thanks,

-Naveen
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Old 05-19-2019, 05:30 PM
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Changed Battery and the problem is gone. Thanks
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