MyTeslaMate
GTW family

GTW_w099_SWCversionMismatch

Not Available

What does the GTW_w099_SWCversionMismatch alert mean?

The vehicle gateway (GTW) detects the Steering Wheel Controller (SWC) 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 SWC running a different firmware version than expected.

When it clears

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

Potential impact

Features depending on SWC functionality, including steering wheel buttons and scroll wheel functions, may be limited or unavailable. Note: No expected impact to steering wheel airbag functionality based on this alert.

Affected models

Model 3 2017-2023 Model 3 2024+ Model S 2021+ Model X 2021+ Model Y Model Y 2025+

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.