VCLEFT family
VCLEFT_a318_trailerIncorrectConfig
Not Available
What does the VCLEFT_a318_trailerIncorrectConfig alert mean?
Trailer detected but the gateway (GTW) configuration for tow package is NONE, or there is a mismatch between config and the electronic control unit (ECU) hardware ID.
What you'll see in your Tesla
- Not Available
What triggers it
GTW_towPackage is NONE and a trailer has been detected, or GTW_towPackage is not the same as the Trailer Light Controller (TLC) hardware ID.
When it clears
If the vehicle has the tow package, this alert clears when the GTW tow package config is set.
Potential impact
Tow functionality may not be available.
Affected models
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.