switters
Member
- First Name
- Chris
- Joined
- Sep 19, 2026
- Threads
- 4
- Messages
- 15
- Reaction score
- 8
- Location
- Bend, OR
- Vehicles
- 2026 Cayenne S Electric
- Thread starter
- #1
Hi all,
I have a 2026 Cayenne S Electric, bought early October. Everything worked fine for weeks, no settings changed, no security code reset.
Today, the PCM started asking me to go online at startup ("Data transfer currently deactivated"). I tapped Go online, then tried to log into my profile with my Porsche ID security code. I get a "Data connection deactivated" popup saying data must be exchanged with My Porsche and asking if I want to establish a temporary data connection. I tap "Yes, continue" and it loops right back to a red error: "To check the security code again, a data connection has to be established. Do you want to do that now?"
What I've tried:
- PCM restart (held the volume knob until it rebooted) - no change.
- Tapped Go online on the startup prompt - doesn't seem to stick; the login still fails the same way.
Diagnostics:
- The PCM status bar shows a 5G signal icon, so the modem appears to have reception.
- The My Porsche app says "Vehicle data from 8:29 AM" - so the car last talked to Porsche's servers at 8:29 this morning and hasn't connected since (it's now mid-afternoon). The app shows 80% / 284 miles, while the car itself shows 73% / 236 miles, so the car has been driven since the last sync and the app data is just stale.
So it looks like the connection worked this morning and then the connectivity module stopped communicating mid-day.
Any idea how to fix this?
I have a 2026 Cayenne S Electric, bought early October. Everything worked fine for weeks, no settings changed, no security code reset.
Today, the PCM started asking me to go online at startup ("Data transfer currently deactivated"). I tapped Go online, then tried to log into my profile with my Porsche ID security code. I get a "Data connection deactivated" popup saying data must be exchanged with My Porsche and asking if I want to establish a temporary data connection. I tap "Yes, continue" and it loops right back to a red error: "To check the security code again, a data connection has to be established. Do you want to do that now?"
What I've tried:
- PCM restart (held the volume knob until it rebooted) - no change.
- Tapped Go online on the startup prompt - doesn't seem to stick; the login still fails the same way.
Diagnostics:
- The PCM status bar shows a 5G signal icon, so the modem appears to have reception.
- The My Porsche app says "Vehicle data from 8:29 AM" - so the car last talked to Porsche's servers at 8:29 this morning and hasn't connected since (it's now mid-afternoon). The app shows 80% / 284 miles, while the car itself shows 73% / 236 miles, so the car has been driven since the last sync and the app data is just stale.
So it looks like the connection worked this morning and then the connectivity module stopped communicating mid-day.
Any idea how to fix this?
