How to Open Your 2015 Subaru Legacy Key Fob & Change Battery

How to Open Your 2015 Subaru Legacy Key Fob & Change Battery

If your car keyless entry remote isn't open doors well, the battery most likely needs to be replaced. Below, we described how to open your key fob and replace your Subaru key battery step by step.

What size battery does 2015 Subaru Legacy remote key fob take

Changing battery in key fob require flat head screwdriver and one CR2032 battery. Prepare these materials and tools before opening and make sure to match the size of your fob’s batteries.
  • flat head screwdriver
  • 1xCR2032 battery

Simple steps to replace the battery in your Legacy's key fob

Inside of your remote key fob installed button cell battery. Remove any internal key first, and then try to pry apart the remote key fob.

Carefully try to open your key fob with hands or flat head screwdriver. Replace 1 CR2032 battery with flat head screwdriver.

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

Before assembling fob’s case, verify that all functions works by testing buttons on circuit board.

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

How to replace the battery video guide

How To Replace Subaru Key Fob Battery DIY 2014 2015 2016 2017 2018 2019 2020

Still not working? Buy new one

Frequently Asked Questions

Remote key fob of Subaru Legacy require 1xCR2032 batteries. Price for CR2032 batteries are under $5 build upon the size packaging, type and brand you buy. You can take old battery to the store, to find a proper replacement.

Keyless entry remote in most of cases reprogramming not needed after battery replace. If your remote key fob not working, recheck new battery voltage. If it is not help, read user's manual or contact local dealer.

Changing your key fob battery is simple to do in 2015 Subaru Legacy. Most of car manufacturers think of the customers and make a special hole for keyless entry remote disassembly.

Car service price for replace the battery in key fob is $50-600 depending on the make.

Remote key fob batteries in modern cars should be changed once in 4 years, but this will differ based on frequency of use and build quality. If your key fob shortened signal strength, you should replace batteries before it stop open doors and make trouble for you.

These symptoms will warn you that it's probably time to change battery in your Subaru Legacy: key fob buttons not working, signal strength reduced, low key battery indicator on dashboard and multiple clicks to unlock or lock doors required.
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Fob Compatibility:

  1. FCC ID: HYQ14AHC
  2. Models: 2015-2017 Subaru Legacy