carfobbattery

Buick LaCrosse key fob battery

11 of the 15 model years listed for the Buick LaCrosse 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. 2005-2007Remote (separate)

    CR2032

    FCC ID KOBGT04A

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

    Find CR2032 on Amazon
  2. 2008Remote (separate)

    CR2032

    FCC ID KOBGT04A

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

    Manual text: “Replace with a CR2032 or equivalent battery.”

    Find CR2032 on Amazon
  3. 2009Remote (separate)

    CR2032

    FCC ID KOBGT04A

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

    Find CR2032 on Amazon
  4. 2010Flip key

    Not confirmed yet

  5. 2010Flip key

    Not confirmed yet

  6. 2011Flip key

    CR2032

    FCC ID OHT01060512

    Owner's manual: uhs-hardware.com and assets.gm.com (checked Nov 2, 2026)

    Manual text: “Replace with a CR2032 or equivalent battery.”

    Find CR2032 on Amazon
  7. 2011Flip key

    CR2032

    FCC ID OHT05918179

    Owner's manual: uhs-hardware.com and assets.gm.com (checked Nov 2, 2026)

    Manual text: “Replace with a CR2032 or equivalent battery.”

    Find CR2032 on Amazon
  8. 2012-2013Flip key

    Not confirmed yet

  9. 2012-2013Flip key

    Not confirmed yet

  10. 2014-2016Flip key

    CR2032

    FCC ID OHT01060512

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

    Find CR2032 on Amazon
  11. 2014-2016Flip key

    CR2032

    FCC ID OHT05918179

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

    Find CR2032 on Amazon
  12. 2017Remote key (manual does not split key types)

    CR2032

    Owner's manual: manualslib.com (checked Nov 1, 2026)

    Manual text: “Replace with a CR2032 or equivalent battery.”

    Find CR2032 on Amazon
  13. 2018Remote (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
  14. 2019Unknown

    Not confirmed yet

Changing the battery

Separate remote fob

  1. The remote is a small standalone unit. You will not need to touch the ignition key at all.
  2. Turn it over: some older fobs use one small screw, newer ones just clip. Pry at the seam once any screw is out.
  3. Replace the cell, keeping the + side where it was, and check the small metal tab still touches it.
  4. Reassemble and test from a short distance.

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.

Flip key

  1. Fold the blade out so it is out of the way, or keep it folded if your case opens from the side; the battery sits in the plastic body, not the blade.
  2. Find the seam or small slot on the body (often at the end away from the blade) and twist a coin or small flat screwdriver in it until the cover lifts.
  3. Swap the coin cell, keeping the same face up as the one you removed, and do not bend the metal contact tab.
  4. Close it up, check the blade still flips cleanly, and test the buttons at the car.

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.

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