2003 Nissan Altima Key Fob Battery Replacement Guide

2003 Nissan Altima Key Fob Battery Replacement Guide

If your auto keyless entry remote isn't open doors correct, the cell battery surely needs to be changed. In this article, we demonstrate how to open Nissan remote key fob and replace a discharged battery DIY. If you gonna solve to do it at home near Altima, use this instruction, but first make sure you have everything you need before you start.

What type battery does 2003 Nissan Altima remote key fob take

Before starting disassembly key fob make sure that you have all required tools and materials: one CR2025 battery and flat head screwdriver.
  • 1xCR2025 battery
  • flat head screwdriver

Simple steps to change the battery in your car's remote key fob

A tiny button battery installed inside the your keyless entry remote. Gently try to disassemble your key with hands or flat head screwdriver. Change one CR2025 battery with flat head screwdriver.

Replace old battery with fresh one CR2025. Battery must be placed with the same polarity as was an old. Your keyless entry remote will not work if you by mistake put battery wrong way.

After the new battery installed, verify remote key fob functionality by pressing buttons. If all functions works, assemble your fob’s case in reverse order.

The last thing to do is put your cover back on fob. Delicately try to assemble the pieces together by hands from top to bottom. Inspect your keyless entry remote case for gaps. If it is not firmly closed try to repeat last step.

Video of key fob opening

How to Replace Battery Key Fob 02-06 Nissan Altima

Still not working? Buy new one


Keyless entry remote of Nissan Altima require 1xCR2025 batteries. Price for CR2025 batteries are under $6 build upon the brand, size packaging and type you buy. Take your old battery to the store, to be sure.

Often, after remote key fob battery replace, you do not need to reprogram. Don't be scare of this procedure, because often it's described in user's manual.

Yes, you can replace battery in your 2003 Nissan Altima keyless entry remote yourself. Most hard part is to open keyless entry fob's case. It's pretty simple with our guide.

Car service cost for change the battery in remote key fob is $50-600 depending on the car.

Keyless entry remote batteries in Nissan Altima should be replaced once in 4 years, also this will vary based on frequency of use and battery quality. If your key fob shortened signal strength, you should change batteries before it stop open doors and make problems for you.

These signs will alert you that it's possible time to change battery in your Nissan Altima: key fob buttons not working, multiple clicks to unlock or lock doors required, you didn't change battery more than 4 years and signal strength reduced.
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Fob Compatibility:

  2. Models: 2002-2006 Nissan Altima