Buick Encore GX key fob battery
4 of the 7 model years listed for the Buick Encore GX 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.
- 2020Unknown
Not confirmed yet
- 2021Remote (RKE transmitter, manual single section)
CR2032
Owner's manual: parts.buick.com and manualmachine.com (checked Nov 2, 2026)
Manual text: “Replace with a CR2032 or equivalent battery.”
Find CR2032 on Amazon - 2022-2023Unknown
CR2032
Two sites agree: parts.buick.com and energizer.com (checked Nov 1, 2026)
Find CR2032 on Amazon - 2024Remote key (manual single section)
CR2032
Owner's manual: parts.buick.com and manualmachine.com (checked Nov 2, 2026)
Manual text: “Replace with a CR2032 or equivalent battery.”
Find CR2032 on Amazon - 2025-2026Unknown
Not confirmed yet
Changing the battery
Separate remote fob
- The remote is a small standalone unit. You will not need to touch the ignition key at all.
- Find the slot along the edge and turn a coin in it. Go slowly so the clips do not snap.
- 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.
Remote key (form not stated in the source)
- Key shape is not stated by the source. Compare your key with the types described on the how-it-works page.
- Find the seam and work it open slowly.
- Swap the coin cell, keeping the same face showing, then make sure the doors respond.
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.
Coin cells are a choking and burn hazard for children. Store the spares in their original pack, out of reach.