2011–2014 Hyundai Sonata Key Fob Battery Type and Replacement

Which Hyundai Sonata model years does this cover?

These key fob battery specifications apply to every Hyundai Sonata built from 2011 through 2014 — the YF (6th generation), mid-size sedan. Nothing in this specification changes between those model years. Pick your year for the engines it offered, what changed that year, and the problems recorded against it.

What changed during the 2011–2014 Hyundai Sonata

• 2011Generation launch (US sales began in 2010 for MY2011); Sonata Hybrid joins the lineup
• 2012–2014Mid-cycle facelift, Korean-built cars refreshed in 2012, North American-built cars in late 2013 for MY2014
• 2013Minor feature reshuffling among trims; the base GLS model's manual transmission is discontinued
• 2014North American-built Sonatas receive the mid-cycle refresh previewed on Korean-built cars in 2012 (new grille, LED-accented lighting, revised wheels); first US-built model year with the facelifted styling

What battery does the 2011–2014 Hyundai Sonata key fob take?

A single CR2032 coin cell.

Can you use a CR2032 instead of a CR2025 in a 2011–2014 Hyundai Sonata key fob?

This fob takes a CR2032, so start there. The two cells share a 20 mm diameter but differ in thickness, and the thicker one does not always seat in a housing built for the thinner.

How do you open a 2011–2014 Hyundai Sonata key fob?

Slide out the mechanical emergency key first, which usually releases a catch, then part the halves with a plastic pry tool or a coin wrapped in tape. A screwdriver will mark the case and can crack the seam.