carfobbattery

Cadillac XT6 key fob battery

Every model year listed for the Cadillac XT6 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. 2020Smart key

    CR2032

    FCC ID HYQ2EB

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

    Find CR2032 on Amazon
  2. 2020-2024Smart key

    CR2032

    FCC ID HYQ2ES

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

    Find CR2032 on Amazon
  3. 2025Smart key

    CR2032

    FCC ID HYQ2ES

    Two sites agree: bestkeysupply.com and americankeysupply.com (checked Nov 2, 2026)

    Find CR2032 on Amazon

Changing the battery

Smart key (push-button start)

  1. Most push-button fobs hide a metal backup key. Press or slide its catch and draw the key out first.
  2. Look inside the empty key slot for a notch. Put the tip of the metal key or a small flat screwdriver wrapped in tape there and twist gently until the shell splits.
  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. Close the case until it clicks all the way round, put the metal key back, then try the buttons and a push-button start.

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.

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.

Other Cadillac models