carfobbattery

Cadillac ATS key fob battery

Every model year listed for the Cadillac ATS has 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. 2013Smart key

    CR2032

    FCC ID NBG009768T

    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
  2. 2014Smart key

    CR2032

    FCC ID NBG009768T

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

    Find CR2032 on Amazon
  3. 2015-2016Smart key

    CR2032

    FCC ID HYQ2AB

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

    Find CR2032 on Amazon
  4. 2015-2016Smart key

    CR2032

    FCC ID HYQ2EB

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

    Find CR2032 on Amazon
  5. 2017Smart key

    CR2032

    FCC ID HYQ2AB

    Two sites agree: uhs-hardware.com and americankeysupply.com (checked Nov 2, 2026)

    Find CR2032 on Amazon
  6. 2017Smart key

    CR2032

    FCC ID HYQ2EB

    Two sites agree: uhs-hardware.com and bestkeysupply.com (checked Nov 2, 2026)

    Find CR2032 on Amazon
  7. 2018-2019Smart key

    CR2032

    FCC ID HYQ2AB

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

    Find CR2032 on Amazon
  8. 2018-2019Smart key

    CR2032

    FCC ID HYQ2EB

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

    Find CR2032 on Amazon

Changing the battery

Smart key (push-button start)

  1. Find the small release on the edge or back of the fob and hold it while you pull out the metal emergency key.
  2. The gap left by the metal key usually has a pry point. A slow twist with a thin flat tool (tape on the tip saves the plastic) opens the two halves.
  3. Pop the old battery out with a toothpick or plastic pick, not a metal blade, and seat the new one with the + side matching the old one.
  4. Snap the halves back together, slide the metal key home, and press each button, then try the start button from the driver's seat.

Cadillac smart remotes commonly hide a key behind a side button. With it out, the case opens at the bottom slot.

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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