VCREAR family
VCREAR_a459_48VHeaterFusedRailTestDiagnostics
Not Available
What does the VCREAR_a459_48VHeaterFusedRailTestDiagnostics alert mean?
Fused rail driver or downstream load driver test result stale.
What you'll see in your Tesla
- Not Available
What triggers it
Any required fused rail driver or downstream load driver test has not been completed within the last 24h.
When it clears
All required fused rail driver and downstream load driver tests completed within the last 24h.
Potential impact
May not be able to detect fused rail driver or downstream load driver stuck-on condition.
Affected models
Cybertruck
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.