DPB family
DPB_a053_hydraulicAssemblyModeActive
Power braking assist reduced
What does the DPB_a053_hydraulicAssemblyModeActive alert mean?
Hydraulic module is in assembly mode.
What you'll see in your Tesla
- Power braking assist reduced
- Braking may require increased effort
What triggers it
The assembly mode, a protected mode for manufacturing and service, has been activated via diagnosis.This is required when the DPB hydraulic unit is not fully assembled during production, not filled with brake fluid or has been unmounted from the vehicle.
When it clears
Clear assembly mode flag by use of customer diagnosis
Potential impact
System will request Hydraulic Boost Compensation when driver pressed the brake pedal.
Affected models
Model Y 2025+
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