TheCaptain67
Member
Doubtful, as I have been keeping an eye on every charge rate in case the second PCS went out.
Will update here if I get any relevant info from Tesla via remote diagnostics…
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Doubtful, as I have been keeping an eye on every charge rate in case the second PCS went out.
Will update here if I get any relevant info from Tesla via remote diagnostics…
Where did you end up? I just had mine fixed and they won’t cover it under warranty.
So my 2018 model 3 has 84,000 miles on it. The past few weeks, every time I use a ChargePoint charger or my home charger I get a ‘power grid’ issue warning. Well - as many of us have found out - this is a PCS system error and I have had it replaced. Tesla won’t cover it under HV battery warranty. $1540 after tax and labor in NJ at Springfield service center.
The service center manager is supposed to call me to discuss but I’ve got no hope it’s going anywhere.
Also - I got this ‘power grid’ warning a while ago and I literally thought nothing of it. So the warning is misleading.
Hopefully sharing this info will help anyone who’s still under the 50,000 mile warranty.
The service center manager is supposed to call me to discuss but I’ve got no hope it’s going anywhere.
Also - I got this ‘power grid’ warning a while ago and I literally thought nothing of it. So the warning is misleading.
Hopefully sharing this info will help anyone who’s still under the 50,000 mile warranty.
Are you sure a 2018 LR RWD maxes out at 48amp charging? I dont know, i am just asking. There are not a ton of those around, comparatively speaking.
If its the PCS, currently, yes. Including someone who already went to arbitration and lost. Of course you could try to take them to arbitration yourself, but the precedent is Tesla doesnt cover it as part of the battery, and has won an arbitration judgement already on this exact topic:
Arbitration decision of my PCS dispute
I know that many forum members in this thread have been waiting to hear the outcome of my arbitration dispute with Tesla over our PCS breakdowns. I can report that yesterday I finally received notification that the arbitrator decided for Tesla —not for me. More specifically, the arbitrator...
teslamotorsclub.com
Yup, there were destination chargers where I used to charge at 48A with my LR RWD 3. Not sure at what point mine failed since my charging rate as home (before wall connector) was 24A.
Thanks,
Jason
My early 2018 M3 LR RWD is now charging at 32 A on 48 A wall connectors. I tried two wall connectors at a Tesla service center, both with the same result, including a PCS_a019 "Power grid or vehicle issue limiting AC charging."
My car was born on 2/1/2018 and definitely has a 48 A charger, which I have used a few times at hotels on road trips. At home I charged at 16 A for several years, but I dropped that to 15 A one or two years ago. My goal was to extend the PCS life, after I realized it had three 16 A circuits and I was running one at its full rating. I do believe that running less than max rating can extend the life of power electronics, by keeping the heat, and the effects of thermal expansion and contraction, down.
Now I have to decide: Replace the PCS when I take the car in for its 6 year service in February, or eke out more life from my original PCS until a second module fails. I don't need more than 32 A charging, but I don't want a sudden failure to disable AC charging completely or shut the car down for some reason.
GSP
My car was born on 2/1/2018 and definitely has a 48 A charger, which I have used a few times at hotels on road trips. At home I charged at 16 A for several years, but I dropped that to 15 A one or two years ago. My goal was to extend the PCS life, after I realized it had three 16 A circuits and I was running one at its full rating. I do believe that running less than max rating can extend the life of power electronics, by keeping the heat, and the effects of thermal expansion and contraction, down.
Now I have to decide: Replace the PCS when I take the car in for its 6 year service in February, or eke out more life from my original PCS until a second module fails. I don't need more than 32 A charging, but I don't want a sudden failure to disable AC charging completely or shut the car down for some reason.
GSP
@gearchruncher it sounds like they have improved the verbiage of the error message... It at least indicates it can be a vehicle issue now.
davewill
Active Member
In your shoes, I'd probably start charging the car at a minimum of 17a. That way, you'll be running both modules at near half capacity, and if another one goes out, you'll hopefully notice that charging is suddenly limited to 16a, and have time to get it replaced before the last module dies.
In the same camp as above. Charging @32 amps. Got the warning prior. Have sometimes 3 cars charging at once it is not really an issue.
I found out about while in for service. They had dropped the battery to replace my rusted out brake lines. The rusted out ones where my kid almost ran into another car as it blew out while driving.
I found out about while in for service. They had dropped the battery to replace my rusted out brake lines. The rusted out ones where my kid almost ran into another car as it blew out while driving.
BigNick
Infamous Fat Sweaty Guy
That's scary. No car that is a maximum of ~6 years old (earliest of the Model 3s) should be having its brake lines rust out.
Welp, just happened to me on a 2019 3 with around 50,000 miles.
Got a notification on my phone that the 12v needed replacing, and when I went out to my car, it was completely dead. Had it towed to an SC, and after a bunch of troubleshooting, it turns out it was the PCS causing the 12v battery to drain. $2,100 repair. Not too happy about it.
I only charge on a 30A breaker (so 24A total) at home, so I'm not sure if I ever had reduced charging.
Got a notification on my phone that the 12v needed replacing, and when I went out to my car, it was completely dead. Had it towed to an SC, and after a bunch of troubleshooting, it turns out it was the PCS causing the 12v battery to drain. $2,100 repair. Not too happy about it.
I only charge on a 30A breaker (so 24A total) at home, so I'm not sure if I ever had reduced charging.
That is a different failure than this thread is about. (Which is only about the AC charging portion of the PCS failing. Even with all three AC charging modules failed you can still Supercharge and it still maintains the 12v battery.)
Hmm, interesting. Somehow mine failed in a way that was causing the 12v to drain. Guess it's a different failure mode. Still sucks...
