How to Replace the Battery in a 2015 Mazda 5 Key Fob

How to Replace the Battery in a 2015 Mazda 5 Key Fob

If your auto key isn't unlock doors properly, the battery most likely must to be replaced. In this post, we demonstrate how to disassembly your car remote key fob and replace a dead battery DIY. If you decide to do it at home near 5, follow our instruction, but don't forget to check everything you need before you start.

What type battery remote key fob use

Before starting open keyless entry remote be sure that you have all recommended tools and materials: flat head screwdriver and 1xCR1620 battery.
  • 1xCR1620 battery
  • flat head screwdriver

Step by step instruction

Inside of your key fob installed tiny button cell battery. Move the key out of the way if it is in the key fob.

Accurately try to disassemble your key with flat head screwdriver. Change CR1620 battery with flat head screwdriver.

Change old battery with fresh one CR1620. Battery must be installed with the same polarity as was a previous. Your keyless entry remote will not work if you mistakenly place battery wrong way.

Before assembling keyless entry fob's case, check that all working fine by pressing buttons on circuit board.

The last thing to do is put your cover back on fob. Gently try to put the pieces in place by hands from top to bottom. Check your key shell for gaps. If it is not tightly closed try to repeat last step.

Key Fob Battery Replacement 2015 Mazda 5 Video

Mazda 5 Flip Key Fob Battery Replacement (2006 - 2015)

Still not working? Buy new one

Frequently Asked Questions

Key fob of Mazda 5 require 1xCR1620 batteries. Most CR1620 batteries are under $5 depending on the brand, type and size packaging you buy. Take your old battery to the store, with you to find a proper replacement.

Remote key fob in most of cases do not need to be reprogrammed after battery replace. If your key not working, recheck new battery voltage. If it is not help, read user's manual or contact local dealer.

Yes, you can change battery in your 2015 Mazda 5 keyless entry remote yourself. Most hard part is to open fob’s case. It's pretty simple with our guide.

The price to change the battery in remote key fob is from $30 to as high as $500 depending on the car and the service pricing.

You should replace batteries inside keyless entry remote of modern cars at least once in four years. The lifetime of battery vary on usage time, quality and operating conditions. Famous brands cells usually will last longer.

These symptoms will alert you that it's possible time to replace battery in your Mazda 5: signal strength reduced, multiple clicks to unlock or lock doors required, low key battery indicator on dashboard and you didn't change battery more than 4 years.
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Fob Compatibility:

  1. FCC ID: BGBX1T478SKE12501
  2. Models: 2006-2015 Mazda 5