How to Change a Battery in a Nissan Key FOB

Written by robert good
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The battery inside of a Nissan vehicle key fob is a small, round, 1.5-volt battery. The electric key has three parts to it: the lower and two upper pieces. The key is held together by pressure. If the battery is dead, then the keyless entry and/or wireless start will not work. You will need one basic household tool to disassemble the key fob.

Skill level:
Moderately Easy

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Things you need

  • Flat head screwdriver
  • Replacement battery

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  1. 1

    Place the edge of the screwdriver between the crack where the upper and lower pieces meet. Turn the screwdriver in either direction until the pieces separate.

  2. 2

    Pull the key fob apart and set the pieces onto a table. Pull the battery from between the two upper pieces.

  3. 3

    Insert the new battery between the two upper pieces. Make sure the battery is in the same position as the old one.

  4. 4

    Reassemble the key by putting the pieces back together and applying pressure until it snaps back. Program the key according to the owner's manual.

Tips and warnings

  • Your owner's manual will contain instructions on reprogramming the key fob.

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