GTW family
GTW_w254_SSFAMversionMismatch
Not Available
What does the GTW_w254_SSFAMversionMismatch alert mean?
The vehicle gateway (GTW) detects the Secondary Steering Feedback Actuator Monitor (PSFAM) electronic control unit (ECU) is running a firmware version that may not be compatible with the firmware installed on the rest of the vehicle.
What you'll see in your Tesla
- Not Available
What triggers it
The GTW detects the SSFAM running a different firmware version than expected.
When it clears
The GTW no longer detects the SSFAM running a different firmware version than expected.
Potential impact
Power steering may be limited or unavailable.
Affected models
Cybertruck
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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.