ESP family
ESP_a116_tsmActive
Not Available
What does the ESP_a116_tsmActive alert mean?
Trailer Sway Mitigation (TSM) is activated as the Electronic Stability Program (ESP) detects the vehicle and trailer may be swaying. The ESP may activate the brakes to help stabilize the vehicle and trailer.
What you'll see in your Tesla
- Not Available
What triggers it
TSM is active.
When it clears
TSM is no longer active.
Potential impact
The ESP may activate the brakes to help prevent the vehicle and trailer from swaying.
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.