carfobbattery

Subaru Solterra key fob battery

3 of the 4 model years listed for the Subaru Solterra have 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.

  1. 2023-2024Smart key

    CR2450

    FCC ID HYQ14FBX

    Two sites agree: americankeysupply.com and bestkeysupply.com (checked Nov 1, 2026)

    Find CR2450 on Amazon
  2. 2025Smart key

    CR2450

    FCC ID HYQ14FBX

    Owner's manual: bestkeysupply.com and manua.ls (checked Nov 2, 2026)

    Manual text: “Use a CR2450 lithium battery”

    Find CR2450 on Amazon
  3. 2026Unknown

    Not confirmed yet

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. Snap the halves back together, slide the metal key home, and press each button, then try the start button from the driver's seat.

Subaru access keys usually hide an emergency key; with it out, the cover opens at the slot.

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.

Other Subaru models