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12-volt battery: Proactive fix (Replacement)

TheAustin

Model X 90D (Former Model S P85)
Sep 12, 2011
266
9
The Hamptons
Tesla called me a couple of days ago and said that they had a proactive fix for my 12-volt battery. A tech came out and is working on my car right now...He said that some of the earlier VINs had been having trouble with the 12-volt batteries (sometimes something as simple as a software push would drain the 12-volt battery, rendering the car useless)...So, they are proactively replacing that battery with a different version, one that isn't prone to getting drained so easily.

For reference, I have a P85, my VIN# ends in 1929, and I took delivery on December 30th...I'm not sure exactly what range constitutes "some of the earlier VINs" as the tech said, but if you're anywhere close to mine, you may have a proactive fix/replacement in the works.

FYI.
 

GeekGirls

Kid in Candy Store
Dec 30, 2012
312
90
Seattle
Tesla called me a couple of days ago and said that they had a proactive fix for my 12-volt battery ... For reference, I have a P85, my VIN# ends in 1929, and I took delivery on December 30th...I'm not sure exactly what range constitutes "some of the earlier VINs" as the tech said, but if you're anywhere close to mine, you may have a proactive fix/replacement in the works.

Interesting. I've heard something similar but I haven't seen any warnings, and I havent been contacted by Tesla yet. Despite taking delivery on the same day as you my VIN is more than 900 higher, so perhaps it really is a relatively small number of early vehicles that are affected.
 

kishdude

P #130
Jul 11, 2012
151
79
Glendale AZ
I have a vin about 400 before yours and they replaced my 12v. Didn't really have an issue, but it said that it couldn't do a software update because the 12v was too low.
 

idoco

Member
May 7, 2013
549
596
Outside Philly
"so perhaps it really is a relatively small number of early vehicles that are affected."

Wishful thinking. As I posted in another thread 12v battery failure this week. SW 4.4. VIN 7xxx.
 

dsm363

Roadster + Sig Model S
May 17, 2009
18,278
151
Nevada
Tesla called me a couple of days ago and said that they had a proactive fix for my 12-volt battery. A tech came out and is working on my car right now...He said that some of the earlier VINs had been having trouble with the 12-volt batteries (sometimes something as simple as a software push would drain the 12-volt battery, rendering the car useless)...So, they are proactively replacing that battery with a different version, one that isn't prone to getting drained so easily.

For reference, I have a P85, my VIN# ends in 1929, and I took delivery on December 30th...I'm not sure exactly what range constitutes "some of the earlier VINs" as the tech said, but if you're anywhere close to mine, you may have a proactive fix/replacement in the works.

FYI.

Is the battery red (outside cover)? I believe that's the new one.
 

MikeC

Supporting Member
Jul 9, 2012
2,859
5,134
Los Angeles
In the earnings call yesterday, Elon mentioned they had contracted with an American company for the 12v, which them outsourced to a Chinese company, which in turn outsourced to a Vietnamese company that made really cheap ones. Was interesting to find out the reason that the initial 12v ended up so crappy.
 

jomo25

Active Member
Mar 16, 2012
2,105
225
Scottsdale, AZ
In the earnings call yesterday, Elon mentioned they had contracted with an American company for the 12v, which them outsourced to a Chinese company, which in turn outsourced to a Vietnamese company that made really cheap ones. Was interesting to find out the reason that the initial 12v ended up so crappy.

Several other reports of such proactive service calls have been posted. The questions are: does this really fix the issue? Is it only one type of issue we've been seeing? Why the people who have had multiple failures? Glad they are being proactive in these cases, but I'm not sure if anyone has the confidence that this wont continue to be a problem for others in the future at the same rate we've seen thus far. That quite a few people including myself feel the need to buy a voltmeter to check regularly shows how common this issue has become and how sever the consequences when it does.

12v battery issue explanation, sort of...
 
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dsm363

Roadster + Sig Model S
May 17, 2009
18,278
151
Nevada
How can I even see the color of the 12v battery?????? I don't even know where it is. ;-)

I think you take the right Frunk cover (left if you are standing in front of the car looking at the Frunk) off but not sure. Don't try and take anything apart just to look at the battery. Just curious if you saw it installed or not. Glad to hear they are working on addressing this issue at least.
 

montgom626

Active Member
Dec 15, 2012
1,328
0
USA
I think you take the right Frunk cover (left if you are standing in front of the car looking at the Frunk) off but not sure. Don't try and take anything apart just to look at the battery. Just curious if you saw it installed or not. Glad to hear they are working on addressing this issue at least.

I have never seen the 12V installed on any MS. I was curious where the 12V is in the MS. I have no idea. I did not know it had a 12V until I read the postings on TMC. Finally, I know nothing about working on cars, so I am the last person to ever take anything apart, as I am not mechanically inclined.
 

strider

Active Member
Oct 20, 2010
3,517
763
NE Oklahoma
VIN 1459 here. We did have a few days w/ 12V low warnings back in January (1 month after delivery). Tesla Service went in remotely, verified it was ok, and "cleared" the warning and it hasn't come back since.
 

EarlyAdopter

Active Member
Jun 24, 2012
2,818
2,047
Redmond, WA
Yeah, but was it built in the USA (original supplier), China (subbed out by US manufacturer), or Vietnam (subbed out by Chinese manufacturer)?

All the stickers and labels looked identical. I could not find a place of manufacture printed anywhere. Sorry I can't be more helpful than that.
 

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