Replace Key Fob Batteries

How to Open Your 2009 Mazda CX-7 Key Fob and Change Battery

How to Open Your 2009 Mazda CX-7 Key Fob and Change Battery

If your CX-7 remote key fob isn't unlock doors correct, the cell battery probably needs to be changed. In this post, we described how to disassembly your keyless entry remote and replace your Mazda key battery.

What type battery remote key fob require

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

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

Inside of your keyless entry remote installed tiny button cell battery. Remove any internal key before you try to pry apart the keyless entry remote.

Accurately try to pry apart your key fob with hands or flat head screwdriver. Remove CR2025 battery with flat head screwdriver.

Change old battery with new one CR2025. Be sure to connect the battery the right way around in a circuit. Your key fob will not work if you connect battery wrong way.

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

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

Video of remote key fob opening

How to Change Key FOB battery for Mazda CX-7

Still not working? Buy new one

Frequently Asked Questions

Key fob of Mazda CX-7 use 1xCR2025 batteries. Price for CR2025 batteries are under $4 build upon the type, size packaging and brand you buy. You can take old battery to the store, to find a proper replacement.

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

Changing your key fob battery is easy to do in 2009 Mazda CX-7. Most of car manufacturers think of the clients and make a special hole for key fob disassembly.

The cost to replace the battery inside key is in range from $30 to as high as $500 depending on the car and the service station.

You should change batteries inside key fob of modern cars at least once in three or four years. The term of battery vary on usage time, quality and operating conditions. Famous brands cells usually will last longer.

If your car has low key battery indicator on dashboard, key fob buttons not working, signal strength reduced or fob's battery more than 4 years old, it's probably battery change in key fob needed. Installed battery is discharged with a high probability, but if it's not help, remote key fob change or repair required.
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Contents:

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

Other Mazda Models:

Fob Compatibility:

  1. FCC ID: BGBX1T458SKE11A01
  2. Models: 2007-2009 Mazda CX-7