2018 Subaru WRX Key Fob Battery Replacement Guide

2018 Subaru WRX Key Fob Battery Replacement Guide

If your WRX key fob is not open doors properly, the battery likely needs to be changed. Below, we explained how to open your car remote key fob and change your Subaru key battery.

What kind of battery remote key fob use

Before starting open key fob make sure that you have all recommended tools and materials: flat head screwdriver and 1 CR1620 battery.
  • 1xCR1620 battery
  • flat head screwdriver

Step by step guide

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

Gently try to disassemble your key fob with pry tools. Replace 1 CR1620 battery with flat head screwdriver.

Get new battery and install it in keyless entry fob's shell. Be sure to connect the battery the right way around in a circuit. Your keyless entry remote will not work if you connect battery wrong way.

Before assembling keyless entry fob's case, verify that all functions works by testing buttons on key fob.

The last thing to do is put your cover back on fob. Accurately try to assemble the two halves in place by hands from top to bottom. Inspect your key fob case for gaps. If it is not firmly closed try to repeat last step.

Key Fob Battery Replacement 2018 Subaru WRX Video

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

Still not working? Buy new one

FAQ

Remote key fob of Subaru WRX use 1xCR1620 batteries. Most CR1620 batteries are under $5 build upon the size packaging, type and brand you buy. Take your old battery to the store, to find a proper replacement.

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

Yes, you can replace battery in your 2018 Subaru WRX keyless entry remote yourself. Most hard part is to open fob’s case. It's pretty easy with our instruction.

The cost to change the battery in keyless entry remote is in range $50-600 depending on the make and the service pricing.

Remote key fob batteries in modern cars should be changed once in three years, although this will differ based on their amount of use and build quality. If your remote key fob shortened signal strength, you should replace batteries before it stop close doors and make problems for you.

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

  1. FCC ID: CWTWB1U811
  2. Models: 2015-2020 Subaru WRX