carfobbattery

Chrysler Pacifica key fob battery

11 of the 15 model years listed for the Chrysler Pacifica 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. 2004-2005Key-head remote

    Not confirmed yet

  2. 2006Key-head remote

    CR2032

    FCC ID M3N5WY72XX

    Two sites agree: manualslib.com and locksmithkeyless.com (checked Nov 2, 2026)

    Find CR2032 on Amazon
  3. 2007Key-head remote

    Not confirmed yet

  4. 2008Key-head remote

    CR2032

    FCC ID M3N5WY72XX

    Two sites agree: manualslib.com and locksmithkeyless.com (checked Nov 2, 2026)

    Find CR2032 on Amazon
  5. 2017-2021Smart key

    CR2032

    FCC ID M3N-97395900

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

    Find CR2032 on Amazon
  6. 2022Smart key

    CR2032

    FCC ID M3N-97395900

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

    Find CR2032 on Amazon
  7. 2023Smart key

    CR2032

    FCC ID M3N-97395900

    Owner's manual: carmanualsonline.info and uhs-hardware.com (checked Nov 1, 2026)

    Manual text: “The recommended replacement battery is one CR2032 battery.”

    Find CR2032 on Amazon
  8. 2024Smart key

    CR2032

    FCC ID M3N-97395900

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

    Find CR2032 on Amazon
  9. 2025Smart key

    CR2032

    FCC ID M3N-97395900

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

    Find CR2032 on Amazon
  10. 2026Unknown

    Not confirmed yet

Changing the battery

Key with remote in the head

  1. This type has the buttons built into the key head. The cell is inside that head, between two clipped halves.
  2. Work a thin flat tool into the seam near the blade and twist; go round slowly if it does not open at once.
  3. Replace the cell with the same face showing, and make sure the rubber keypad sits flat before closing.
  4. Snap it closed and press each button. The car still starts with a dead remote battery on most of these keys, because the start chip needs no battery.

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.

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. Use the slot where the metal key sat. Twist, do not lever hard, and work along the seam until the halves separate.
  3. Before you take the old cell out, look at its face. Put the new cell in with the same side showing, and avoid touching both faces at once.
  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.

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.

If a child might have swallowed a coin cell, treat it as an emergency and get to a hospital right away.

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