Genesis GV80 key fob battery
5 of the 6 model years listed for the Genesis GV80 have a proven battery. The most common answer is CR2032. Rows below run oldest to newest; a year can appear twice when the car came with more than one kind of key.
- 2021Smart key
CR2032
FCC ID TQ8-FOB-4F35Two sites agree: americankeysupply.com and manua.ls (checked Nov 1, 2026)
Find CR2032 on Amazon - 2022-2023Smart key
CR2032
FCC ID TQ8-FOB-4F35Two sites agree: americankeysupply.com and uhs-hardware.com (checked Nov 2, 2026)
Find CR2032 on Amazon - 2024Smart key
Not confirmed yet
- 2025Smart key
CR2450
FCC ID TQ8-FOB-4F75U44Two sites agree: americankeysupply.com and bestkeysupply.com (checked Nov 1, 2026)
Find CR2450 on Amazon - 2026Smart key
CR2450
Owner's manual: ownersmanual.genesis.com (checked Nov 1, 2026)
Manual text: “Battery Type: CR2450”
Find CR2450 on Amazon
Changing the battery
Smart key (push-button start)
- Most push-button fobs hide a metal backup key. Press or slide its catch and draw the key out first.
- The gap left by the metal key usually has a pry point. A slow twist with a thin flat tool (tape on the tip saves the plastic) opens the two halves.
- Pop the old battery out with a toothpick or plastic pick, not a metal blade, and seat the new one with the + side matching the old one.
- Reassemble, refit the emergency key, and check that the car sees the fob when you press start.
A CR2032 is 20 mm across and 3.2 mm thick. CR2032, CR2025 and CR2016 share the same width but not the same thickness, so a swap between them can leave a loose contact or a case that will not close.
A CR2450 is 24.5 mm across and 5.0 mm thick, much fatter than a CR2032. A thinner cell will rattle and lose contact, so buy the exact size.
Keep spare coin cells away from small children. A swallowed coin cell can burn the throat within hours; if it happens, go to an emergency room at once.