carfobbattery

Nissan 350Z key fob battery

1 of the 7 model years listed for the Nissan 350Z have 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. 2003-2008Key-head remote

    Not confirmed yet

  2. 2003-2005Remote (separate)

    Not confirmed yet

  3. 2006Remote (separate)

    CR2025

    FCC ID KBRASTU15; PQTDORM14

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

    Manual text: “KEYFOB BATTERY REPLACEMENT ... CR2025 or equivalent”

    Find CR2025 on Amazon
  4. 2007-2009Remote (separate)

    Not confirmed yet

  5. 2009Key-head remote

    Not confirmed yet

Changing the battery

Separate remote fob

  1. The remote is a small standalone unit. You will not need to touch the ignition key at all.
  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. Replace the cell, keeping the + side where it was, and check the small metal tab still touches it.
  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.

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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