MyTeslaMate
FC family

FC_a299_GB_evseReadyTimeout

Not Available

What does the FC_a299_GB_evseReadyTimeout alert mean?

The Fast Charge (FC) Electronic Control Unit (ECU) has detected the GuoBiao (GB) adapter was unable to receive a ready signal via a charger output readiness state (CRO) message from Electric Vehicle Supply Equipment (EVSE) within 60 seconds. Message timeouts may result in the charging session not starting.

What you'll see in your Tesla

  • Not Available

What triggers it

GB adapter does not receive a EVSE ready signal within the expected 60 second time frame, resulting in a timeout condition.

When it clears

Unplug charge handle.

Potential impact

Charging session may not start.

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.