Hyundai Sonata key fob battery

GarageDex's key fob data shows the Hyundai Sonata key fob takes a CR2032 coin cell across the 2006 to 2020 model years.

Shop CR2032 batteries A 2-pack covers both fobs

Key takeaways

  • 2015 to 2020 Hyundai Sonata: CR2032.
  • CR2032: 20 mm wide, 3.2 mm thick - the most common fob cell.
  • Same cell across every listed year.
  • Note which side faces up before removing the old cell.
Hyundai Sonata key fob battery by year
YearsFob typeBatteryNotes
2015 to 2020Standard fobCR203220 mm wide, 3.2 mm thick - the most common fob cell
2011 to 2015Standard fobCR203220 mm wide, 3.2 mm thick - the most common fob cell
2006 to 2014Standard fobCR203220 mm wide, 3.2 mm thick - the most common fob cell

How to change the Hyundai Sonata fob battery

  1. Slide out the mechanical key if the fob has one, and look for a slot or notch along the seam.
  2. Twist a coin or a small flat screwdriver in the slot to split the case. Work around the seam rather than forcing one point.
  3. Note which side of the old cell faces up, then lift it out with a fingernail or plastic pick - avoid metal tools across the contacts.
  4. Fit the new CR2032 the same way up, snap the halves together, and test the lock button before walking away from the car.

Batteries and tools for the Hyundai Sonata fob

Coin cells are universal - any brand's CR2032 fits. Buy a multi-pack so the second fob gets a fresh cell too.

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Same car, other specs: Hyundai Sonata specs hub and 12V battery size.

Other Hyundai models

Source: Microbattery - Key Fob Battery Finder. Fob designs change mid-generation, so confirm the code printed on the cell you take out before you order.