carfobbattery

Subaru Crosstrek key fob battery

12 of the 14 model years listed for the Subaru Crosstrek have a proven battery. The most common answer is CR1620. Rows below run oldest to newest; a year can appear twice when the car came with more than one kind of key.

  1. 2013Key-head remote

    CR1620

    FCC ID CWTWB1U811

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

    Find CR1620 on Amazon
  2. 2014Key-head remote

    CR1620

    FCC ID CWTWB1U811

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

    Find CR1620 on Amazon
  3. 2014Smart key

    Not confirmed yet

  4. 2015-2017Key-head remote

    CR1620

    FCC ID CWTWB1U811

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

    Find CR1620 on Amazon
  5. 2015-2016Smart key

    CR2032

    FCC ID HYQ14AHC

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

    Find CR2032 on Amazon
  6. 2017Smart key

    Not confirmed yet

  7. 2018Key-head remote

    CR1620

    FCC ID CWTB1G077

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

    Find CR1620 on Amazon
  8. 2018-2019Smart key

    CR2032

    FCC ID HYQ14AHK

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

    Find CR2032 on Amazon
  9. 2019Key-head remote

    CR1620

    FCC ID CWTB1G077

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

    Find CR1620 on Amazon
  10. 2020Key-head remote

    CR1620

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

    Find CR1620 on Amazon
  11. 2020Smart key (access key fob)

    CR2032

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

    Find CR2032 on Amazon
  12. 2021-2022Key-head remote

    CR1620

    FCC ID CWTB1G077

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

    Find CR1620 on Amazon
  13. 2021-2022Smart key

    CR2032

    FCC ID HYQ14AHK

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

    Find CR2032 on Amazon
  14. 2023Key-head remote

    CR1620

    FCC ID CWTB1G077

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

    Manual text: “Replacing transmitter battery: Button battery CR1620 or equivalent”

    Find CR1620 on Amazon
  15. 2023Smart key

    CR2032

    FCC ID HYQ14AHK

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

    Manual text: “Replacing battery of access key fob: Button battery CR2032”

    Find CR2032 on Amazon
  16. 2024Key-head remote

    CR2025

    FCC ID CWTB1G496

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

    Manual text: “Replacing Battery of Transmitter: Button battery CR2025 or equivalent”

    Find CR2025 on Amazon
  17. 2024Smart key

    CR2032

    FCC ID HYQ14AHK

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

    Manual text: “Replacing Battery of Access Key Fob: Button battery CR2032”

    Find CR2032 on Amazon
  18. 2025Smart key

    Not confirmed yet

  19. 2026Unknown

    Not confirmed yet

Changing the battery

Key with remote in the head

  1. The remote electronics sit in the plastic head of the key itself, so there is no separate fob to open.
  2. Find the seam around the head. Twist a coin or small flat screwdriver in the notch at the blade end or side until the halves part.
  3. Replace the cell with the same face showing, and make sure the rubber keypad sits flat before closing.
  4. Close the head, check there is no gap, and try the buttons.

A CR1620 is 16 mm across and 2.0 mm thick. It is easy to confuse with the 20 mm CR20xx sizes, which will not fit.

A CR2025 is 20 mm across and 2.5 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.

Smart key (push-button start)

  1. Start by freeing the hidden metal key: there is a latch or slide on the case, and the blade comes out once it moves.
  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. Note which side of the old coin cell faces up (usually the side with the writing), lift it out with a plastic tool, and press the new one in the same way.
  4. Reassemble, refit the emergency key, and check that the car sees the fob when you press start.

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

Other Subaru models