How To Change Key Fob Battery Hyundai Sonata. The unit worked perfectly. The keyless entry FOB is now reprogrammed to your Hyundai vehicle.
How to replace the battery in this key fob for the Hyundai Sonata 2015 2016 2017 2018 2019 2020 D-Shaped smart key fob. Turn the key to the ACC or Accessory ignition position. Every two years or so or when the battery is low you may need to change the key fob battery.
Carefully open the battery case and note the old battery.
Ensure that the battery is making contact with all the appropriate connections. Hyundai i30 mk 2 smart key battery replacement. Stick the key to your Hyundai into the vehicles ignition cylinder. Lift Out Remote Control.
