Replace Key Fob Batteries

How to Open Your 2004 Infiniti M45 Key Fob and Change Battery

How to Open Your 2004 Infiniti M45 Key Fob and Change Battery

If your car key fob is not open doors well, the cell battery more likely needs to be changed. In this case, you will benefit from knowing how to open your key fob and replace a dead or weak battery yourself. If you decide to do it at home near M45, follow our instruction, but first make sure you have everything you need.

What kind of battery keyless entry remote use

Don't forget before open remote key fob make sure that you have all recommended tools and materials: flat head screwdriver and one CR2025 battery.
  • flat head screwdriver
  • 1xCR2025 battery

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

A tiny coin battery installed inside the your key fob. Carefully try to disassemble your fob with pry tools. Remove 1 CR2025 battery with flat head screwdriver.

Now it's time to install new battery inside fob’s body. Every battery has a negative and positive side and if you put the wrong connector down, the current cannot go into your circuit board and make it work. Check position on battery, by "+" mark.

When the new battery installed, check keyless entry remote functionality by pressing buttons. If all functions works, assemble your fob’s shell in reverse order.

At this point squeeze keyless entry fob's back cover together. Line your shell pieces together and put it together by hands from top to bottom. Check your fob body for gaps. If it is not tightly closed try to repeat last step.

How to replace the battery video guide

Infinity Q45 / M45 Key Fob Battery Replacement - EASY DIY

Still not working? Buy new one

Frequently Asked Questions

Keyless entry remote of Infiniti M45 use 1xCR2025 batteries. Price for CR2025 batteries are under $4 build upon the brand, type and size packaging you buy. You can take old battery to the store, with you to find a proper replacement.

Often, after 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.

Replacing your remote key fob battery is simple to do in 2004 Infiniti M45. Most of car manufacturers think of the customers and make a special hole for key fob open.

The price to change the battery inside key fob is $50-600 depending on the make and the service station.

Keyless entry remote batteries in modern cars should be replaced once in 4 years, although this will differ based on frequency of use and battery quality. If your keyless entry remote reduced signal strength, you should change batteries before it stop close doors and make problems for you.

If your car signal strength reduced, fob's battery more than 4 years old, need multiple clicks to unlock or lock doors or has low key battery indicator on dashboard, it's probably battery change in keyless entry remote needed. Installed battery is dead with a high probability, but if it's not fix, remote key fob replace or repair required.
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Contents:

  1. Battery Size and Tools
  2. Replacement Guide
  3. Video Instruction
  4. FAQ

Other Infiniti Models:

Fob Compatibility:

  1. FCC ID: KBRASTU13
  2. Models: 2003-2004 Infiniti M45