RADC family
RADC_a004_ecuCrcHwError
Not Available
What does the RADC_a004_ecuCrcHwError alert mean?
The radar circuit (RADC) has detected a condition with the cyclic redundancy check (CRC). RADC may not operate as expected.
What you'll see in your Tesla
- Not Available
What triggers it
RADC detects a condition with the CRC.
When it clears
RADC no longer detects a condition with the CRC.
Potential impact
The RADC might not operate as expected and may compromise radar-based functionalities on the vehicle.
Affected models
Cybertruck
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.