MyTeslaMate
ESP family

ESP_a072_ReRWSSLostSignal

ABS (anti-lock braking system) disabled

What does the ESP_a072_ReRWSSLostSignal alert mean?

WSS fault due to missing wheel speed signal.

What you'll see in your Tesla

  • ABS (anti-lock braking system) disabled
  • Drive with caution

What triggers it

Wss fault due to missing wheel speed sensor signal

When it clears

Check connections and/or replace WSS

Potential impact

Will disable VDC/TC and degrade ABS

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.