How to Replace the Battery in a 2018 Subaru CrossTrek Key Fob

How to Replace the Battery in a 2018 Subaru CrossTrek Key Fob

If your CrossTrek remote key fob is not unlock doors properly, the cell battery more likely must to be changed. Below, we explained how to disassembly your car keyless entry remote and replace a weak or dead battery yourself. If you decide to do it at home near CrossTrek, use this instruction, but first make sure you have tools and materials required.

What type battery does 2018 Subaru CrossTrek keyless entry remote take

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

Step by step guide

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

Carefully try to disassemble your key with hands or flat head screwdriver. Replace one CR2032 battery with flat head screwdriver.

Change old battery with fresh one CR2032. Every battery has a negative and positive side and if you put the wrong connector down, the current cannot go into your circuit board and make it work. Check position on battery, by "+" mark.

When the new battery installed, check key fob by pressing buttons. If all functions works, assemble your keyless entry fob's shell in reverse order.

At this point squeeze keyless entry fob's back cover together. Line your body pieces together and put it together by hands from top to bottom. Check your keyless entry remote body for gaps. If it is not firmly closed try to repeat last step.

Key Fob Battery Replacement 2018 Subaru CrossTrek Video

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

Still not working? Buy new one


Remote key fob of Subaru CrossTrek use 1xCR2032 batteries. Most CR2032 batteries are under $6 depending on the size packaging, type and brand you buy. You can take old battery to the store, to find a proper replacement.

Often, after remote key fob battery change, reprogramming not required. Remote key fob reprogramming procedure often described in user's manual of your vehicle.

Yes, you can change battery in your 2018 Subaru CrossTrek keyless entry remote yourself. Most difficult part is to open fob’s case. It's pretty simple with our instruction.

The price to change the battery in fob is $50-600 depending on the make and the service pricing.

Keyless entry remote batteries in modern cars should be replaced every 3-4 years, also this will vary based on their amount of use and build quality. If your key fob shortened signal strength, you should replace batteries before it stop working and make trouble for you.

These symptoms will warn you that it's possible time to change battery in your Subaru CrossTrek: you didn't change battery more than 4 years, multiple clicks to unlock or lock doors required, signal strength reduced and key fob buttons not working.
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Fob Compatibility:

  2. Models: 2015-2018 Subaru Crosstrek