MyTeslaMate
GTW family

GTW_w256_SSBversionMismatch

Not Available

What does the GTW_w256_SSBversionMismatch alert mean?

The vehicle gateway (GTW) detects the Semi ethernet Switch Board (SSB) electronic control unit (ECU) running a firmware version that may not be compatible with the firmware installed on the rest of the vehicle. May occur after an unsuccessful or incomplete vehicle firmware update, and may be resolved through a successful vehicle firmware update.

What you'll see in your Tesla

  • Not Available

What triggers it

The GTW detects the SSB ECU running a different firmware version than expected.

When it clears

The GTW no longer detects the SSB ECU running a different firmware version than expected.

Potential impact

Ethernet-based logging from the motors and batteries may be limited or unavailable.

Affected models

Semitruck

Track your Tesla's alerts automatically

Alerts like this reach MyTeslaMate through your car's Tesla telemetry API. MyTeslaMate logs every alert your Tesla reports and turns it into readable history and real-time notifications — hosted TeslaMate with no server to run.