Hyundai Tucson key fob battery (2024 on): CR2032 or CR2450
It depends on the key: remote key (fold-out key) takes one CR2032; smart key (keyless) takes one CR2450.
Remote key (fold-out key)
CR20323V
CR2032× 13V lithium coin cell
Also sold as DL2032, ECR2032, KECR2032, 5004LC · CR2032 details
Source: Hyundai Tucson owner's manual
Smart key (keyless)
CR24503V
CR2450× 13V lithium coin cell
Also sold as DL2450, 5029LC, KECR2450, CR2450N · CR2450 details
Source: Hyundai Tucson owner's manual
Before you swap it
- CR2016 and CR2025 are the same 20 mm width as a CR2032 but a different thickness, so read the code on the old cell before you order, because a cell that's too thin can lose contact every time the fob gets knocked.
- Note which way up the old cell sits before you take it out. Fitted upside down, the key won't work at all.
Quick answers
What battery does the Hyundai Tucson key (2024 on) take?
Remote key (fold-out key): one CR2032 3V lithium coin cell. Smart key (keyless): one CR2450 3V lithium coin cell.
Is DL2032 the same as CR2032?
Yes. DL2032 is CR2032, and DL2450 is CR2450: same cells, other names.
Will a CR2025 fit instead of a CR2032?
No. It's the same 20 mm width but 2.5 mm thick, against 3.2 mm for a CR2032. Use a CR2032.