Powertrain
Definition only
Lights the check engine lamp
P2854: Clutch B Pressure Discharge Performance
Standardized SAE J2012 code · P28xx codes
What does P2854 mean?
Clutch B hydraulic pressure does not bleed off as expected when commanded to release. Excessive residual pressure delays disengagement.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
Symptoms
- Check engine or transmission warning light on
- Harsh, delayed, or missing shifts
- Possible limp mode (locked in one gear)
- Slipping or shuddering during gear changes
Common causes
- High Clutch actuator seal leaks
- Medium Aerated transmission fluid
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of P2854 on the same make and model first.
P2854 in the community
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