⚡️ Home Charging Issues after Software Update? (Tracking Thread)

[Bolt1323]

Ok, that appears to be a different part. Hopefully it works for you.

Update: didn’t work I don’t think they even know what they are doing anymore.

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[lukine]

Update: didn’t work I don’t think they even know what they are doing anymore.

Sorry to hear. I don’t think Porsche headquarters even knows what they did to break things.

 

[Bolt1323]

Sorry to hear. I don’t think Porsche headquarters even knows what they did to break things.

Yes, when I called Porsche Canada they didn’t even know anything about the repair.

 

[ChicagoEV]

2025 Macan EV Turbo
Chicago, IL

Following the last software update, I have been able to charge only once at home (after trying a series of different steps which I was not able to replicate). I receive a "charging not possible" error and car fails to recognize the charger. I have tested both my slow chargers (Porsche - second one belongs to a Cayenne Turbo hybrid) and my Level 2 Tersla charger without any success. The car flashes white internally as does the charging indicator when the chargers are connected and goes through the initialization phase but then ends up in the red with the error.

All the chargers work on my Cayenne. Temperatures are extremely cold here, so I will drive it to the dealer today and leave it out of fear it will brick otherwise. I will update accordingly.

 

[annwills]

I would like to add my observations on this problem prior to my 3rd appointment with the dealer next Thursday.

Since the November 2025 software update (Campaign WSJ0), I am unable to charge at home using either my hardwired unit (Grizzl-E Classic 40 Amp) or Porsche portable unit. Car will charge at dealer with Porsche portable unit, but only after reinstalling software update a second time.

Both chargers are able to charge neighbor's Rivian at my home. Factory resets do not solve the problem.

On dealer's advice that the problem probably lies with the electrical ground in our home, I had a master electrician check our house wiring. He verified that it is up to code and could not identify any problems with either the house wiring or the electrical supply, but as a precaution, he installed a new house ground wire. It did not solve the problem. ($950.00 in case you were wondering) Home electrical service measures 121.5/243.0 volts, 60.0 Hz with no load. Problem persists even with all house circuits turned off except for the charger circuit being used.

Neither charger indicates any fault codes, and both are capable of identifying faults with the electrical current.

Both chargers alternate between showing charging attempted for 5-6 seconds then showing charging paused for 5-6 seconds while the car charging port displays flashing white. Both chargers will repeat this cycle several times until the car rejects the charging attempts and displays solid red at the charging port and the PCM displays "Charging Currently Not Possible".

On rare occasions, if a departure time is selected, the charger will continue its on and off cycling attempts to charge right up to the departure time and may eventually connect just prior to the departure time and then continue charging well past the departure time until it reaches the target charge level. Doesn't always work.

I have attached the complex instructions to the dealers for installing WSJ0. Notice the warning on page 1 that because of numerous dealer screwups, a 23-step checklist on pages 17 and 18 must be completed and signed. My guess after seeing that a second software installation partially solved the problem, at least to the point where AC charging was possible at the dealer, is that the problem might be with the PROCESS of carefully installing the software. Will let you know how next Thursday goes.

https://static.nhtsa.gov/odi/tsbs/2025/MC-11026364-0001.pdf

 

[lukine]

I would like to add my observations on this problem prior to my 3rd appointment with the dealer next Thursday.

Since the November 2025 software update (Campaign WSJ0), I am unable to charge at home using either my hardwired unit (Grizzl-E Classic 40 Amp) or Porsche portable unit. Car will charge at dealer with Porsche portable unit, but only after reinstalling software update a second time.

Both chargers are able to charge neighbor's Rivian at my home. Factory resets do not solve the problem.

On dealer's advice that the problem probably lies with the electrical ground in our home, I had a master electrician check our house wiring. He verified that it is up to code and could not identify any problems with either the house wiring or the electrical supply, but as a precaution, he installed a new house ground wire. It did not solve the problem. ($950.00 in case you were wondering) Home electrical service measures 121.5/243.0 volts, 60.0 Hz with no load. Problem persists even with all house circuits turned off except for the charger circuit being used.

Neither charger indicates any fault codes, and both are capable of identifying faults with the electrical current.

Both chargers alternate between showing charging attempted for 5-6 seconds then showing charging paused for 5-6 seconds while the car charging port displays flashing white. Both chargers will repeat this cycle several times until the car rejects the charging attempts and displays solid red at the charging port and the PCM displays "Charging Currently Not Possible".

On rare occasions, if a departure time is selected, the charger will continue its on and off cycling attempts to charge right up to the departure time and may eventually connect just prior to the departure time and then continue charging well past the departure time until it reaches the target charge level. Doesn't always work.

I have attached the complex instructions to the dealers for installing WSJ0. Notice the warning on page 1 that because of numerous dealer screwups, a 23-step checklist on pages 17 and 18 must be completed and signed. My guess after seeing that a second software installation partially solved the problem, at least to the point where AC charging was possible at the dealer, is that the problem might be with the PROCESS of carefully installing the software. Will let you know how next Thursday goes.

https://static.nhtsa.gov/odi/tsbs/2025/MC-11026364-0001.pdf

This is very helpful. I’ll share this with my dealer, perhaps the installation process needs to be extremely precise and cannot skip steps.

Looking forward to your next update to see how it went.

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