Hyundai Elantra MD/UD: Remote keyless entry (if equipped) - Features of your vehicle - Hyundai Elantra MD 2010-2015 Owners manualHyundai Elantra MD/UD: Remote keyless entry (if equipped)

Battery replacement
A smart key battery should last for several years, but if the smart key is not working properly, try replacing the battery with a new one. If you are unsure how to use your smart key or replace ...