OTA Update functionality

[Ryunker]

Is there anyone or anywhere to go to find out exactly minimum settings to allow OTA updates and zero other connected features?

I asked GROK, and this is what spewed out.

Please if you have achieved getting OTA updates and zero other car communication things please post your experiences.

• Vehicle Connectivity (Modem Activation):
  • This is the core requirement. It enables the embedded Telematics Control Unit (TCU/modem) for cellular data communication with Ford's servers, allowing the vehicle to check for, download, and install OTA updates (via cellular or Wi-Fi).
  • How to enable:
    • On your SYNC 4 touchscreen: Tap Settings > Connectivity > Connected Vehicle Features > Toggle "Vehicle Connectivity" to On.
  • Once enabled, activate the modem if not already done (this is a one-time step):
    • Download and log into the FordPass app on your smartphone (free, but optional for basic OTA—it's mainly for notifications and remote scheduling).
    • Start your vehicle (running, parked in a safe, ventilated area).
    • In the app, select "Connect to Vehicle" > "I've Started My Vehicle."
    • Accept the prompt on the vehicle's screen (may take up to 2 minutes).
    • The app will confirm connection.
  • Note: This uses Ford's complimentary connected service (no personal cellular plan needed). Disabling this will disconnect the modem entirely, preventing all OTA updates.
• Automatic Software Updates:
  • This setting allows the vehicle to automatically check for and install updates without manual intervention.
  • How to enable:
    • On the SYNC 4 touchscreen: Tap Settings > Software Updates > Toggle "Automatic Updates" to On.
    • Recommended: Set a recurring schedule (e.g., overnight) via the touchscreen or FordPass app to avoid interruptions during driving.
  • Without this, you'll only get manual prompts or no updates at all.
• Wi-Fi Connectivity (Conditional Requirement):
  • Not always needed, but required for larger updates (e.g., full map downloads or certain SYNC features). Most smaller OTA updates can use the cellular modem alone.
  • How to enable (when needed):
    • On the SYNC 4 touchscreen: Tap Settings > Connectivity > Wi-Fi > Connect to a known network (home Wi-Fi recommended; public Wi-Fi is not supported for updates).
  • If an update requires Wi-Fi, the system or FordPass app will notify you—otherwise, keep it off to minimize data usage.

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[roadpilot]

I am only aware of one single OTA update that was delivered via WiFi, and that was to fix an issue with the TCU in order to address OTA updates over the TCU/cellular network. That was on my F150 a couple of years ago.