Hyundai Sonata Key Fob Battery Remote Replacement (2006 – 2020)

The Hyundai Sonata has been the top luxury 4-door sedan of the brand for what seems like ages. It was the first car that made me consider buying a Hyundai (even though a rival brand would dub it [“So not a” car]). Over the years, it has used four different types of key fobs. The “D-Shaped”, “Flip”, “Rectangular”, and “3-Button Grey Hatch” key fobs. All use the same internal CR2032 coin battery.

For other Hyundai models, see our Hyundai key fob battery page.

MODELTRIMSYEARSBATTERYBUY
SonataD-Shaped2015, 2016, 2017, 2018, 2019, 2020CR2032Check on Amazon
SonataFlip2015, 2016, 2017, 2018, 2019CR2032Check on Amazon
SonataRectangular2011, 2012, 2013, 2014, 2015CR2032Check on Amazon
Sonata3-Button Grey Hatch2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014CR2032Check on Amazon

How to replace the Hyundai Sonata “D-Shaped” smart key fob battery (2015, 2016, 2017, 2018, 2019, 2020)

Scroll down to see a full video tutorial or keep reading for a step by step guide.

What you will need:
• 1x CR2032 battery
• Flat-head screwdriver
• Precision screwdriver (3.0mm/PH0 or smaller)
-or-
• Pen, pencil, toothpick or another thin tool

Buy Small Screwdriver Set on Amazon

Start by pushing the button on the bottom of the key fob to release the internal key. Directly next to the keyhole, there is a slot in the plastic. Take a flat-head screwdriver and insert it into this slot. Twist the screwdriver and the two halves of the key fob will pop apart.

Now, locate the battery. You will need a small screwdriver or similar tool to remove the it. Insert your tool to the side of the battery and gently pry the it out. Take a new CR2032 battery and click it into place face-down. Reattach the two halves of the key fob and put your internal key back inside. Press on one of the buttons and make sure the red light on the front of the key fob comes on. If it does, you’re all set. Nice job!

Hyundai Sonata Key Fob Battery Replacement (2015 - 2020)


AmazonBasics CR2032 3 Volt Lithium Coin Cell Battery - 4-Pack
  • 4-pack of lithium coin cell batteries; CR2032 cell size
  • 8-year leak-free shelf life, ideal for watches, calculators, key fobs, Apple TV remotes, and other small electronics
  • Replacement for BR2032, DL2032, and ECR2032

How to replace the Hyundai Sonata “Flip” key fob battery (2015, 2016, 2017, 2018, 2019, 2020)

Scroll down to see a full video tutorial or keep reading for a step by step guide.

What you will need:
• 1x CR2032 battery
• Flat-head screwdriver
• Precision screwdriver (3.0mm/PH0 or smaller)
-or-
• Pen, pencil, toothpick or another thin tool

Buy Small Screwdriver Set on Amazon

You’ll need a small flat-head screwdriver to pop open the outer case it two spots. Be careful to pop open both spots! If you just try to pry open one side, you’ll likely break the plastic on the key fob as you can see I did on my first attempt:

Once you have the fob plastic shell open, there are two small Phillips screws to remove to get access to the battery. Once you’ve removed those, take your small flat-head and pry out the CR2032 battery. Put in a fresh new CR2032 coin battery and you’re all set! Screw back on the battery cover and pop the outer plastic shell back in place and you’re all set. You’ve successfully replaced the battery on your Hyundai Sonata key fob! Great work!


AmazonBasics CR2032 3 Volt Lithium Coin Cell Battery - 4-Pack
  • 4-pack of lithium coin cell batteries; CR2032 cell size
  • 8-year leak-free shelf life, ideal for watches, calculators, key fobs, Apple TV remotes, and other small electronics
  • Replacement for BR2032, DL2032, and ECR2032

How to replace the Hyundai Sonata “Rectangular” smart key fob battery (2011, 2012, 2013, 2014, 2015)

Scroll down to see a full video tutorial or keep reading for a step by step guide.

What you will need:
• 1x CR2032 battery
• Flat-head screwdriver
• Precision screwdriver (3.0mm/PH0 or smaller)
-or-
• Pen, pencil, toothpick or another thin tool

Buy Small Screwdriver Set on Amazon

First step, hold down the button on the front of the key fob to remove the internal key. With your key gone, you can see a slot just beneath the key-hole. Take a flat-head screwdriver, insert it into the slot, and twist. The two halves of the key fob will come apart.

Now, take your precision screwdriver or other thin tool and use it to pry the battery out. Come in from the right side of the battery, push down to the bottom, and gently pull the tool back until the battery pops out. Take a new CR2032 battery and put it into place face-down. Push it down until it clicks into place.

Finally, push the two halves of the key fob back together and put back the internal key. If the battery has power, the light on the front of the key should turn on when you push a button.

Hyundai Sonata Key Fob Battery Replacement (2011 - 2015)


AmazonBasics CR2032 3 Volt Lithium Coin Cell Battery - 4-Pack
  • 4-pack of lithium coin cell batteries; CR2032 cell size
  • 8-year leak-free shelf life, ideal for watches, calculators, key fobs, Apple TV remotes, and other small electronics
  • Replacement for BR2032, DL2032, and ECR2032

How to replace the Hyundai Sonata “3-Button Grey Hatch” key fob battery (2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014)

Scroll down to see a full video tutorial or keep reading for a step by step guide.

What you will need:
• 1x CR2032 battery
• Flat-head screwdriver

Changing the battery in this Hyundai Sonata key fob is simple. First, look at the top of the key fob, above the light. There’s a slot that we can use to open the device. Take a flat-head screwdriver, insert it into the slot, and twist. The key fob will pop open, giving you access to the battery.

Now, just use your screwdriver to push on the bottom of the battery. Push until the battery is loose enough to remove with your fingers. Take a brand-new CR2032 battery and push it into place, face-up, under the metal housing until it’s snugly in place. Finally, click the two halves of the key fob back together. Test your battery by pushing a button on the key fob, if the light comes on, you did everything right and you’re good to go. Nice work!

Hyundai Sonata Key Fob Battery Replacement (2006 - 2014)


AmazonBasics CR2032 3 Volt Lithium Coin Cell Battery - 4-Pack
  • 4-pack of lithium coin cell batteries; CR2032 cell size
  • 8-year leak-free shelf life, ideal for watches, calculators, key fobs, Apple TV remotes, and other small electronics
  • Replacement for BR2032, DL2032, and ECR2032