ESP family
ESP_a117_hbaActive
Not Available
What does the ESP_a117_hbaActive alert mean?
The Electronic Stability Program (ESP) determines that an emergency stop may be required, causing the Hydraulic Brake Assist (HBA) to be activated. The ESP may also increase the brake pressure by running the ESP pump.
What you'll see in your Tesla
- Not Available
What triggers it
The HBA is activated as the operating speed of the brake pedal exceeds the maximum threshold.
When it clears
The HBA is no longer active.
Potential impact
The ESP may increase the brake pressure.
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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