PL1 523961.12 – INFORMATION FOR OPERATOR: Travel Speed Detected With Park Lock Engaged

PL1 523961.12 (PL1 )

Code: 523961.12



This informational code is generated when the park lock is engaged at a travel speed of more than 0.5 km/h. This can also occur if the park lock is engaged while the vehicle is in motion.


The vehicle may have limited functionality, prompting the operator to take corrective action.


  • Operator Instructions:
    • Instruct the operator to ensure the vehicle is stationary before engaging the park lock.
  • Check Park Lock Mechanism:
    • Verify the functionality of the park lock mechanism to ensure it engages and disengages correctly.
  • Monitor Vehicle Speed Sensors:
    • Check the speed sensors to ensure they are providing accurate readings and not causing false engagements.
  • Consult Technical Support:
    • If the issue persists, seek assistance from technical support for further diagnosis and resolution.


Proper engagement of the park lock is crucial for vehicle safety. Regular training and checks can help prevent unintended park lock engagements.

Control Units: John Deere

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