carfobbattery

Buick Century key fob battery

9 of the 10 model years listed for the Buick Century 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.

  1. 1996Remote (separate)

    Not confirmed yet

  2. 1997Remote (separate)

    CR2032

    FCC ID ABO0204T

    Owner's manual: manualowl.com and uhs-hardware.com (checked Nov 1, 2026)

    Manual text: “use a type CR2032 battery”

    Find CR2032 on Amazon
  3. 1998-2000Remote (separate)

    CR2032

    FCC ID ABO0204T

    Two sites agree: manualowl.com and uhs-hardware.com (checked Nov 1, 2026)

    Find CR2032 on Amazon
  4. 2001-2005Remote (separate)

    CR2032

    FCC ID L2C0007T

    Two sites agree: uhs-hardware.com and bestkeysupply.com (checked Nov 1, 2026)

    Find CR2032 on Amazon

Changing the battery

Separate remote fob

  1. A separate fob has no key blade inside, so it opens with nothing but a coin or a small screwdriver.
  2. 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.
  3. Swap the cell or cells, keeping the same side up as the old ones.
  4. 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.

If a child might have swallowed a coin cell, treat it as an emergency and get to a hospital right away.

Other Buick models