MyTeslaMate
VCLEFT family

VCLEFT_a520_configMismatch

Not Available

What does the VCLEFT_a520_configMismatch alert mean?

The Electronic Parking Brake (EPB) configuration differs from the EPB configuration reported by Gateway (GTW). The Electronic Parking Brake Monitor (EPBM) expects the configuration from EPB to be valid based on GTW vehicle configuration.

What you'll see in your Tesla

  • Not Available

What triggers it

5 seconds after boot, the vehicle reports the EPB configuration and GTW vehicle EPB configuration is mismatched.

When it clears

EPBM determines EPB configuration is valid based on the GTW vehicle configuration.

Potential impact

When an inconsistency between GTW and EPB configurations is present, the EPB configuration is used.

Affected models

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.