LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Kia >> 2020 >> Optima Plug-In Hybrid EX >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Smart Key System (PHEV) >> Description & Operation >> Operation >> User Information Functions
April 5, 2026: LEMON Manuals is launched! Read the announcement.

User Information Functions

ID OUT Warning 

  1. Preconditions:
    • (ACC or IGN1) & (any door open or trunk open)
  2. Event:

    The last opened door is closed

  3. SMK action:

    SMK searches for a SMART KEY FOB from the interior.

    • If no valid SMART KEY FOB is found, the SMK activates external buzzer and also sends ID OUT warning via CAN (exterior buzzer warning and internal buzzer warning).
    • If a door is opened and closed again when the terminals are on and valid fob is inside the vehicle, SMK re-enables the authentication and stops the warning. If the terminal is in ACC, SMK shall turn on immobilizer lamp.
NOTE: If there is an LF error (LF overheating or LF antenna failure), the system will behave in the same way as when no fob has been found.