RCM2 family
RCM2_a048_batteryVoltageTooHigh
Not Available
What does the RCM2_a048_batteryVoltageTooHigh alert mean?
Power supply voltage is too high
What you'll see in your Tesla
- Not Available
What triggers it
The RCM power supply voltage is too high.
When it clears
The vehicle 12V system issue is corrected.
Potential impact
The Safety Restraint System may not perform as designed.
Affected models
Cybertruck
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.