VCLEFT family
VCLEFT_a299_swcMIA
Steering wheel buttons and horn unavailable
What does the VCLEFT_a299_swcMIA alert mean?
Steering Wheel Controller not responding on LIN
What you'll see in your Tesla
- Steering wheel buttons and horn unavailable
- Service required to restore functionality
What triggers it
Steering Wheel Controller not responding on LIN
When it clears
Steering Wheel Controller responding on LIN
Potential impact
Steering Wheel Controls will not function
Affected models
Model 3 2017-2023
Model 3 2024+
Model S 2021+
Model X 2021+
Model Y
Model Y 2025+
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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.