OBD-II code · Powertrain (generic, extended)
P28F0 Engine Disconnect Clutch Actuator Stuck On
The engine disconnect clutch actuator stays in the engaged state when release is commanded. Pure electric driving is not available.
Is it safe to drive with P28F0?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyActuator mechanically stuck on
- PossibleRelease pressure path blocked
- Less likelyCarbon or debris buildup preventing free movement
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
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 2–9 h
- Emissions test
- Usually unaffected
- Parts involved
- Engine Disconnect Clutch Actuator, Hybrid Control Module
Related codes
- P28EDElectric/Auxiliary Transmission Fluid Pump B Overspeed
- P28EEElectric/Auxiliary Transmission Fluid Pump B Underspeed
- P28EFEngine Disconnect Clutch Actuator Performance/Stuck Off
- P28F1Engine Disconnect Clutch Pressure Sensor Circuit
- P28F2Engine Disconnect Clutch Pressure Sensor Circuit Range/Performance
- P28F3Engine Disconnect Clutch Pressure Sensor Circuit Low
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.