carfobbattery

Infiniti QX30 key fob battery

Every model year listed for the Infiniti QX30 has a proven battery. The most common answer is CR2025. Rows below run oldest to newest; a year can appear twice when the car came with more than one kind of key.

  1. 2017Smart key

    CR2025

    FCC ID IYZDC12K

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

    Find CR2025 on Amazon
  2. 2018Smart key

    CR2025

    FCC ID IYZDC12K

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

    Find CR2025 on Amazon
  3. 2019Smart key

    CR2025

    FCC ID IYZDC12K

    Owner's manual: manua.ls (checked Nov 1, 2026)

    Manual text: “You require a CR 2025 3 V cell battery.”

    Find CR2025 on Amazon

Changing the battery

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. The gap left by the metal key usually has a pry point. A slow twist with a thin flat tool (tape on the tip saves the plastic) opens the two halves.
  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.

Infiniti Intelligent Keys normally hold a mechanical key behind a release knob; the slot behind it is where you pry.

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.

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

Other Infiniti models