Buick Envision key fob battery
6 of the 11 model years listed for the Buick Envision 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.
- 2016-2020Unknown
CR2032
Two sites agree: parts.buick.com and energizer.com (checked Nov 1, 2026)
Find CR2032 on Amazon - 2021-2023Smart key
Not confirmed yet
- 2024-2025Smart key
Not confirmed yet
- 2026Remote key (manual does not split key types)
CR2450
Owner's manual: manua.ls (checked Nov 1, 2026)
Manual text: “Replace with a CR2450 Lithium or equivalent battery.”
Find CR2450 on Amazon
Changing the battery
Remote key (form not stated in the source)
- The form of the remote is not named in the source for these years.
- Open the case at its seam with a coin or plastic pry tool.
- 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.
Separate remote fob
- The remote is a small standalone unit. You will not need to touch the ignition key at all.
- 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.
- Swap the cell or cells, keeping the same side up as the old ones.
- Close the fob and test it. If it does not work, open it again and check the cell is seated flat.
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.