How to Open Your 2008 Mazda RX-8 Key Fob & Change Battery

How to Open Your 2008 Mazda RX-8 Key Fob & Change Battery

If your RX-8 keyless entry remote isn't working perfectly, the battery more likely needs to be replaced. In this case, you’ll benefit from knowing how to disassembly your car key fob and change a discharged battery DIY. If you decide to do it at home near RX-8, use this guide, but don't forget to check tools and materials required before you start.

What type battery does 2008 Mazda RX-8 key fob required

Prior to disassembly key fob check all that you need: one CR2025 battery and flat head screwdriver.
  • 1xCR2025 battery
  • flat head screwdriver

Simple steps to replace the battery in your RX-8's keyless entry remote

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

Delicately try to disassemble your keyless entry remote with pry tools. Change 1 CR2025 battery with flat head screwdriver.

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

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

At this point squeeze keyless entry fob's back cover together. Line your case two halves together and assemble it together by hands from top to bottom. If your remote key fob shell tightly closed, we done. If not, repeat the last step.

Key Fob Battery Replacement 2008 Mazda RX-8 Video

How To Change A Mazda RX-8 Key Fob Battery-Flip Key (2005-2008)

Still not working? Buy new one

Frequently Asked Questions

Key fob of Mazda RX-8 use 1xCR2025 batteries. Price for CR2025 batteries are under $6 build upon the size packaging, type and brand you buy. Take your old battery to the store, with you to find a proper replacement.

Keyless entry remote in most of cases do not need to be reprogrammed after battery change. If your key fob not working, recheck new battery voltage. Otherwise, read user's manual or contact local dealer.

Changing your keyless entry remote battery is simple to do in 2008 Mazda RX-8. Most of car manufacturers think about customers and make a special hole for remote key fob disassembly.

The cost to replace the battery in keyless entry remote is in range from $30 to as high as $500 depending on the make and the service pricing.

Keyless entry remote batteries in Mazda RX-8 should be replaced once in 4 years, although this will differ based on their amount of use and quality. If your keyless entry remote reduced signal strength, you should change batteries before it stop open doors and make trouble for you.

If your Mazda signal strength reduced, need multiple clicks to unlock or lock doors, key fob buttons not working or has low key battery indicator on dashboard, it's probably battery replace inside key fob required. Installed battery is weak or dead with a high probability, but if it's not help, keyless entry remote change or repair required.
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Other Mazda Models:

Fob Compatibility:

  1. FCC ID: BGBX1T458SKE11A01
  2. Models: 2004-2011 Mazda RX-8