Code result
P285A
Clutch B Pressure Disengagement Performance/Too Low
High severity
What it means
Clutch B disengagement pressure is below the calibrated minimum. Clutch may not separate cleanly under load.
Is it safe to drive?
No — stop driving
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly.
Most likely causes
Hydraulic pump output pressure low
highOne of the most commonly reported causes for this code — check this first.
Pressure regulator characteristic drift
mediumA plausible cause — test and verify before replacing parts.
Related help
Get the full diagnosis
Add your vehicle and see step-by-step repair help, recalls, and TSBs in Wrenchify.
Diagnose P285A freeNo credit card required