2018 Subaru WRX STI Key Fob Battery Replacement Guide

2018 Subaru WRX STI Key Fob Battery Replacement Guide

Keyless entry remote grant easy access to your WRX STI. If the key battery is weak or dead you will lose your fob’s ability to use remote opening function. It's not difficult to replace the battery in your keyless entry remote DIY. All tools, that you need is outlined below.

What kind of battery remote key fob require

Before you start to open remote key fob check all that you need: 1 CR2032 battery and flat head screwdriver.
  • flat head screwdriver
  • 1xCR2032 battery

Step by step guide

A small button battery installed inside the your keyless entry remote. Remove any internal key before you try to pry apart the remote key fob.

Carefully try to disassemble your fob with pry tools. Remove one CR2032 battery with flat head screwdriver.

Replace old battery with new one CR2032. Battery must be installed with the same polarity as was an old. Your key will not work if you mistakenly put battery wrong way.

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

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

Key Fob Battery Replacement 2018 Subaru WRX STI Video

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 WRX STI require 1xCR2032 batteries. Most CR2032 batteries are under $6 build upon the type, size packaging and brand you buy. Take your old battery to the store, to be sure.

Usually, after key fob battery change, 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 2018 Subaru WRX STI. Most of car manufacturers think of the customers and make a special hole for remote key fob open.

Dealer service price for change the battery in remote key fob is $50-600 depending on the brand.

You should change batteries inside keyless entry remote of Subaru WRX STI at least once in 3-4 years. lifespan of battery vary on frequency of use, operating conditions and quality.

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

  2. Models: 2015-2018 Subaru WRX STI