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Home >> Hyundai >> 2016 >> Elantra Value Edition >> Repair and Diagnosis >> External Pages >> Different car >> Section 16 (Smart Key Unit System) >> Smart Key Unit System >> Description and Operation >> Operation >> Smart Key Lamp Warning
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Smart Key Lamp Warning

WARNING: This page is about a different car, the 2016 Hyundai Elantra GT and 2015 Hyundai Elantra GT. However, it is still accessible from the selected car via links, so may be relevant.
  1. SMK actions:

    As long as the preconditions are valid, the SMK ECU performs a periodical search for the fobs in the interior of the vehicle; the same LF-strategy has to be used as it is defined for the ID out warning (registering only, no authentication); periodical means, the search is done every 3 seconds.

    If no fob has been found, the SMK ECU starts Key out indicator lamp activation as all preconditions are valid and will perform another search 3 seconds later.

    If any valid fob has been found, the SMK ECU stops the Key out indicator lamp and will (if one door is open) perform another search 3 seconds later; if no door is open then it's only at the next When the preconditions are still valid, the search resumes by opening of one door.