ESP_a349_ForceLampToRed

The Hydraulic Brake Booster (HBB) and Anti-Lock Braking (ABS) target states do not report ON for more than 10 hours or both controllers (DPB and ESP) are not operating as expected.

Live incidence rate

<0.01% (Extremely rare)

Vehicle messages

None displayed

Impact

Functions in ESP will be available still.

Description

The Hydraulic Brake Booster (HBB) and Anti-Lock Braking (ABS) target states do not report ON for more than 10 hours or both controllers (DPB and ESP) are not operating as expected.

Cause

TargetStateHBB or TargetStateABS do not report ON for more than 10 hours OR both the DPB and ESP are not operating as expected.

Clear condition

No issue is detected in current operation cycle.

Models

Model Y 2025+

Visibility

service-fix

Want to track your firmware alerts, trips and more?

Sign up for Tessie. Try it free for 14 days. Happiness guaranteed.