GMC Acadia key fob battery
14 of the 20 model years listed for the GMC Acadia 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.
- 2007-2013Remote (separate)
CR2032
FCC ID OUC60221Two sites agree: uhs-hardware.com and americankeysupply.com (checked Nov 2, 2026)
Find CR2032 on Amazon - 2014-2017Remote (separate)
CR2032
FCC ID OUC60221Two sites agree: uhs-hardware.com and energizer.com (checked Nov 1, 2026)
Find CR2032 on Amazon - 2018Remote (manual says RKE transmitter)
CR2032
Owner's manual: carmanualsonline.info (checked Nov 1, 2026)
Manual text: “Replace with a CR2032 or equivalent battery.”
Find CR2032 on Amazon - 2019-2021Unknown
Not confirmed yet
- 2022Remote (manual says RKE transmitter)
CR2032
Owner's manual: carmanualsonline.info and energizer.com (checked Nov 1, 2026)
Manual text: “Replace with a CR2032 or equivalent battery.”
Find CR2032 on Amazon - 2023Unknown
Not confirmed yet
- 2024Remote key (manual does not split key types)
Not confirmed yet
- 2025Remote key (manual does not split key types)
CR2450
Owner's manual: manualslib.com (checked Nov 1, 2026)
Manual text: “Replace with a CR2450 Lithium or equivalent battery.”
Find CR2450 on Amazon - 2026Unknown
Not confirmed yet
Changing the battery
Separate remote fob
- This remote is its own fob, separate from the metal key, which makes it one of the easier ones to open.
- Look for a screw on the back or a notch on the edge. Remove the screw if present, then twist a coin in the notch to split the case.
- Lift the old coin cell out and press the new one in with matching orientation.
- Close the fob and test it. If it does not work, open it again and check the cell is seated flat.
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.
Coin cells are a choking and burn hazard for children. Store the spares in their original pack, out of reach.