carfobbattery

Subaru Impreza key fob battery

23 of the 31 model years listed for the Subaru Impreza 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. 1996-1998Remote (separate)

    Not confirmed yet

  2. 1999Remote (separate)

    Not confirmed yet

  3. 1999Remote (separate)

    Not confirmed yet

  4. 2000-2001Remote (separate)

    Not confirmed yet

  5. 2000-2001Remote (separate)

    Not confirmed yet

  6. 2002Remote (separate)

    CR2032

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

    Manual text: “Replace with a new battery (Type CR2032 or equivalent)”

    Find CR2032 on Amazon
  7. 2003Remote (separate)

    CR2032

    Owner's manual: manualsdir.com and manualowl.com (checked Nov 1, 2026)

    Manual text: “Type CR2032 or equivalent”

    Find CR2032 on Amazon
  8. 2004Remote (separate)

    CR2032

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

    Manual text: “Replace with a new battery (Type CR2032 or equivalent)”

    Find CR2032 on Amazon
  9. 2005-2011Remote (separate)

    CR2025

    FCC ID NHVWB1U711

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

    Find CR2025 on Amazon
  10. 2012-2013Key-head remote

    CR1620

    FCC ID CWTWB1U811

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

    Find CR1620 on Amazon
  11. 2014-2015Key-head remote

    CR1620

    FCC ID CWTWB1U811

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

    Find CR1620 on Amazon
  12. 2014Remote (separate)

    Not confirmed yet

  13. 2015Smart key

    CR2032

    FCC ID HYQ14AHC

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

    Find CR2032 on Amazon
  14. 2016Key-head remote

    CR1620

    FCC ID CWTWB1U811

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

    Find CR1620 on Amazon
  15. 2016Smart key

    CR2032

    FCC ID HYQ14AHC

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

    Find CR2032 on Amazon
  16. 2017-2018Key-head remote

    CR1620

    FCC ID CWTB1G077

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

    Find CR1620 on Amazon
  17. 2017-2023Smart key

    CR2032

    FCC ID HYQ14AHK

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

    Find CR2032 on Amazon
  18. 2019-2022Key-head remote

    CR1620

    FCC ID CWTB1G077

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

    Find CR1620 on Amazon
  19. 2023Key-head remote

    CR1620

    FCC ID CWTB1G077

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

    Find CR1620 on Amazon
  20. 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
  21. 2024Smart key

    Not confirmed yet

  22. 2025Smart key

    Not confirmed yet

  23. 2026Unknown

    Not confirmed yet

Changing the battery

Separate remote fob

  1. A separate fob has no key blade inside, so it opens with nothing but a coin or a small screwdriver.
  2. Look for a screw on the back or a notch on the edge. Remove the screw if present, then twist a coin in the notch to split the case.
  3. Lift the old coin cell out and press the new one in with matching orientation.
  4. Snap the case shut and watch for the lights to flash when you press lock at the car.

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.

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.

Key with remote in the head

  1. Here the key blade and remote are one piece. You open the plastic head, not the blade.
  2. Many key heads split along the side seam. Start at the small notch and pry a little at a time.
  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. Find the small release on the edge or back of the fob and hold it while you pull out the metal emergency key.
  2. Use the slot where the metal key sat. Twist, do not lever hard, and work along the seam until the halves separate.
  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. 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 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