2004 Mazda B4000 Key Fob Battery Replacement Guide

2004 Mazda B4000 Key Fob Battery Replacement Guide

If your auto key isn't working well, the battery more likely needs to be changed. In this article, we are going to tell you how to open your keyless entry remote and change a discharged battery DIY. If you decide to do it at home near B4000, use this guide, but don't forget to check tools and materials required.

What type battery keyless entry remote require

Before starting disassembly remote key fob be sure that you have all recommended tools and materials: flat head screwdriver and 1 CR2032 battery.
  • 1xCR2032 battery
  • flat head screwdriver

Step by step instruction

A small button battery installed in the your keyless entry remote. Delicately try to pry apart your remote key fob with pry tools. Change 1xCR2032 battery with flat head screwdriver.

Get new battery and install it inside fob’s body. Battery must be installed with the same position as was a previous. Your key will not work if you mistakenly place battery wrong way.

Before assembling keyless entry fob's case, make sure that all is functioning by testing buttons on keyless entry remote.

At this point squeeze fob’s back cover together. Line your shell two halves together and assemble it in place by hands from top to bottom. If your fob shell tightly closed, we done. If not, repeat the last step.

How to change the battery video guide

How To Replace Mazda B4000 Key Fob Battery 2000 2009

Still not working? Buy new one

Frequently Asked Questions

Remote key fob of Mazda B4000 require 1xCR2032 batteries. Most CR2032 batteries are under $5 depending on the type, brand and size packaging you buy. You can take old battery to the store, with you to find a proper replacement.

Usually, after key battery replace, reprogramming not required. Don't be scare of this procedure, because often it's described in user's manual.

Yes, you can replace battery in your 2004 Mazda B4000 remote key fob yourself. Most difficult part is to disassembly keyless entry fob's case. It's pretty easy with our instruction.

Auto repair shop's price for change the battery in fob is from $30 to as high as $500 depending on the brand.

Key fob batteries in Mazda B4000 should be replaced once in three years, although this will vary based on usage and quality. If your remote key fob reduced signal strength, you should change batteries before it stop close doors and make trouble for you.

If your auto need multiple clicks to unlock or lock doors, fob's battery more than 4 years old, key fob buttons not working or has low key battery indicator on dashboard, in most cases battery change inside remote key fob required. Current battery is weak with a high probability, but if it's not help to fix issues, fob replace or repair required.
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Fob Compatibility:

  1. FCC ID: OUCD6000022
  2. Models: 2001-2009 Mazda B4000