Powertrain
Definition only
Lights the check engine lamp
P27F5: Gear Shift Lock Solenoid/Actuator A Stuck Off
Standardized SAE J2012 code · P27xx — Transmission
What does P27F5 mean?
The shift lock solenoid for selector lever A does not engage when commanded. The selector can be moved without the safety interlock active.
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 Lock actuator failed mechanically
- Medium Open in solenoid control wire
- Low Carbon or debris buildup preventing free movement
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of P27F5 on the same make and model first.
P27F5 in the community
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