How to Replace the Key Fob Battery in a Hyundai Venue

1. Remove the mechanical key from the smart key.
2. Pry open the rear cover of the smart key with a slim tool.
3. Take out the old battery and put in the new one, checking the position is correct.
4. Reinstall the rear cover of the smart key.

• Battery Type: CR2032.
• An improperly positioned battery may discharge, causing smart key failure.
• Warning: a swallowed lithium button battery can cause severe or fatal injuries within 2 hours, so keep batteries away from children.

Source: 2026 Hyundai Venue owner's manual, PDF pages 126, 127. Steps are summarized in our own words (AI-assisted, checked against the cited pages 2026-10-18). Other model years can differ; your manual has the final word.