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Hyundai & Kia key fob battery

Hyundai smart keys and flip keys use a CR2032 in almost every model. Kia smart keys and flip keys use a CR2032 in almost every model.

BatteryUsed inSizeCapacity
CR2032Hyundai (most common); Kia (most common)20 mm × 3.2 mm≈ 225 mAh
CR2032⌀20 × 3.2 mm
CR2032 at the same scale.

Hyundai key fobs

Hyundai smart keys and flip keys use a CR2032 in almost every model.

Dead fob? Press the start button directly with the smart key itself, with your foot on the brake.

Kia key fobs

Kia smart keys and flip keys use a CR2032 in almost every model.

Dead fob? Press the start button directly with the smart key itself, with your foot on the brake.

To change it: release and pull out the metal key, twist its tip in the seam to split the case, and fit the new cell the same way up. Step-by-step guide.

Also mainly CR2032: Subaru, BMW, Volkswagen, Audi.

Key types change between model years; the code on your old battery is final.