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How to replace the key battery on the Hyundai Sonata 2013

Model: Hyundai Sonata YF, MK 6 - Years 2010-2015
Part: Key

After several months or years of use, your 2013 Hyundai Sonata's smart key may suddenly stop working due to a dead battery. In this case, simply replace the battery to resolve the issue. Here's how to do it: First, pull out the emergency key by sliding it out, then remove the rear cover and proceed to replace the old button battery with a new compatible one. Finally, correctly reattach the rear cover and you are done.

Updated on 9 September 2026 by ScegliAuto

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