VCLEFT family
VCLEFT_a403_swsForceAdcCheckFail
Steering wheel buttons unavailable
What does the VCLEFT_a403_swsForceAdcCheckFail alert mean?
Check for valid force sensor ADC readings
What you'll see in your Tesla
- Steering wheel buttons unavailable
- Service required to restore functionality
What triggers it
SWS detected invalid force sensor ADC readings
When it clears
Requires a power cycle or hardware replacement
Potential impact
Loss of functionality due to functional safety checks
Affected models
Model 3 2024+
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.