RCU family
RCU_a007_pressureSensorFault
Backup power braking assist unavailable
What does the RCU_a007_pressureSensorFault alert mean?
The Redundant Control Unit (RCU) pressure sensor or sensor connection issue.
What you'll see in your Tesla
- Backup power braking assist unavailable
- OK to drive - Schedule service
What triggers it
The RCU has detected an invalid brake pressure sensor signal or is not receiving a pressure sensor signal.
When it clears
The RCU receives a valid pressure sensor signal after being power cycled.
Potential impact
The RCU may not be able to perform backup power braking assist.
Affected models
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.