Chevrolet Blazer EV key fob battery
Every model year listed for the Chevrolet Blazer EV has a proven battery. The most common answer is CR2450. Rows below run oldest to newest; a year can appear twice when the car came with more than one kind of key.
- 2024-2025Remote key (manual does not split key types)
CR2450
FCC ID YG0G21TB2Owner's manual: manualslib.com (checked Nov 1, 2026)
Manual text: “Replace with a CR2450 Lithium or equivalent battery.”
Find CR2450 on Amazon - 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
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.
- Replace the cell, keeping the + side where it was, and check the small metal tab still touches it.
- Reassemble and test from a short distance.
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.