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12v battery requires service/Parking brake functions degraded

Techniques

Member
Jul 4, 2018
521
351
Richmond Hill
Wanted to share these error with everyone.

Has anyone come across these error messages on their 3? Came up this evening on my screen. Car has been great recently, no noticeable issues. I’m still on 2019.28.3.1.

Put in a service request, earliest availability is Sept 23 o_O
447D47F7-1883-4AB7-8717-92789C2E0713.jpeg
 
Last edited:

Lon12

Member
Oct 12, 2015
839
1,040
Calgary, AB, Canada
This is one of my pet peeves. If your 12v system starts dropping voltage you get all kinds of system error messages. Dollar signs start flashing in your mind as your told to bring the vehicle in for service.
I think the first message should always be “12v system is low..... ignore all of the next messages”. ;)
Wish EV manufacturers would show us the 12v system voltage like cars used to do. I’m thinking of buying one of those cigarette lighter 12v meters just to keep an eye on it.
 
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Techniques

Member
Jul 4, 2018
521
351
Richmond Hill
This morning the car did some phamtom things, windows went all the day down when I opened the door, alerts that I can't charge, blind spot monitoring disabled, and yes..add washer fluid :rolleyes:.

In service now, haven't received a cause as yet. Should take an hour to replace, under warranty.
 

Techniques

Member
Jul 4, 2018
521
351
Richmond Hill
So apparently the battery, had a "malfunction". Funny that there is an issue within a year, but so far all is working again.
For those curious, it was all covered under warranty.
 

Techniques

Member
Jul 4, 2018
521
351
Richmond Hill
Did you tap in the 12V system? (i.e. dash cam install)
Nope, nothing of the sorts. Only thing I have is an SSD connected to a USB Hub, and my sentry USB.

One tidbit, the service advisor said that when you get the warning to change the 12v battery, you essentially have 30 days before it dies. I hope to never need to test that though lol
 

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