If Installing A New ECM

WARNING: This page is about a different car, the 2020 Hyundai Santa Fe. However, it is still accessible from the selected car via links, so may be relevant.

Perform "KEY TEACHING " procedure using GDS.
(Refer to Body Electrical System - "IMMOBILIZER SYSTEM ")
- After replacing the ECM of the vehicle with the smart key system (button start), the following procedure must be performed.

Turn IGN ON then OFF using the smart key or start button. Then the ECM learns information on the smart key automatically.