If the remote key is not working properly, try replacing the battery with a new one.
Battery Type: CR2032
To replace the battery:
1.Insert a slim tool into the slot and gently pry open the cover.
2.Using a screw driver, remove the battery cover.
3.Remove the old battery and insert the new battery. Make sure the battery position is correct.
4.Reinstall the battery cover and key cover in the reverse order of removal.
If you suspect your remote key might have sustained some damage, or you feel your remote key is not working correctly contact an authorized HYUNDAI dealer.
Information
An inappropriately disposed battery can be harmful to the environment and human health. Dispose of the battery according to your local law(s) or regulations.
To lock your vehicle using the door handle button or the Smart Key:
1.Make sure all doors, the hood and the liftgate are closed.
2.Make sure you have the smart key in your possession.