How To Replace Hyundai Sonata Key Battery. Replace the battery in your 2016 Hyundai Sonata Eco 16L 4 Cyl. Most Hyundai key fobs use a CR2032 battery but we recommend opening the key to verify the battery.
Turn the key to the acc. Pry open the rear cover of the smart key. More so you can easily lift the plastic cover at the back of.
Every two years or so or when the battery is low you may need to change the key fob battery.
Hearing a click when trying to start the engine. If you are unsure how to use your smart key or replace the battery contact an authorized HYUNDAI dealer. These instructions should help you replace the key fob keyless remote battery on Hyundai Elantra Azera Sonata Genesis Accent Equus Santa Fe Sedona Tucson Veloster. You should know that this process will be different depending on if you drive a new Hyundai model or an older one but not dramatically.
