OBD-II code · Powertrain (generic, extended)

P27F5 Gear Shift Lock Solenoid/Actuator A Stuck Off

The shift lock solenoid for selector lever A does not engage when commanded. The selector can be moved without the safety interlock active.

Is it safe to drive with P27F5?

Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.

Common causes

  • Most likelyLock actuator failed mechanically
  • PossibleOpen in solenoid control wire
  • 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
Medium
DIY friendly
Best left to a mechanic
Typical labour
0.5–3 h
Emissions test
Usually unaffected
Parts involved
Shift Lock Solenoid A, Shift Lock Actuator A, Tcm

Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.