The manufacturer-backed record for Genie GM3T-R identifies a CR2032 battery; verify the marking in your own device before replacing it.
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Check the cell and model together
Because this remote is discontinued, a new battery does not make it a current supported purchase option. The GM3T-R battery detail applies to that SKU, not every Genie remote. Open the battery compartment gently and compare the printed code with the official instructions. Keep coin cells away from children.
If it still does not work
A correct battery cannot fix an incompatible code system. Recheck the opener model, the GM3T-R family listing and the manufacturer programming guidance. If the door’s safety sensors are faulty, stop remote testing until they are repaired.
A working old remote can still be discontinued
Replacing the CR2032 in an existing GM3T-R may help a homeowner keep a working device while researching the opener. It does not make the product available from Genie again or establish a new substitute. The historical GenieMaster documentation spans several technologies, including older DIP, so keep the opener model separate from the remote model when looking for a current replacement.
Model-specific Amazon searches
A CR2032 can serve an existing GM3T-R. The remote itself remains discontinued and is not linked as a purchasable replacement.
- (paid link) Search CR2032 coin cells on Amazon
These links open Amazon search results, not a verified individual listing. Compare the exact manufacturer model and your opener manual before buying.
Official sources and review scope
These links support the claims on this page. Check your exact model and the manufacturer's latest revision before buying or programming.
- Genie GM3T-R discontinued model product store.geniecompany.com · checked 2026-11-04 · GM3T-R supports legacy DIP/Intellicode, but clearly marked discontinued/out of stock