How to Replace the Battery in a 2019 Toyota 4Runner Key Fob

How to Replace the Battery in a 2019 Toyota 4Runner Key Fob

If your 4Runner key fob is no longer open doors properly, the battery probably must to be replaced. In this post, we walks you through how to disassembly your keyless entry remote and replace your Toyota key battery step by step.

What type battery does 2019 Toyota 4Runner keyless entry remote take

Before starting open remote key fob check all that you need: flat head screwdriver and CR2016 battery.
  • 1xCR2016 battery
  • flat head screwdriver

Step by step guide

Inside of your keyless entry remote installed tiny button battery. Remove any internal key before you try to pry apart the key fob.

Accurately try to open your fob with pry tools. Replace one CR2016 battery with flat head screwdriver.

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

Before assembling fob’s case, verify that everything is functioning by pressing buttons on circuit board.

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

How to replace the battery video instruction

How to Change/Replace Toyota 4Runner Key Fob Keyless Remote Battery

Still not working? Buy new one

Frequently Asked Questions

Remote key fob of Toyota 4Runner require 1xCR2016 batteries. Most CR2016 batteries are under $5 depending on the size packaging, brand and type you buy. Take your old battery to the store, to be sure.

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

Yes, you can change battery in your 2019 Toyota 4Runner key fob yourself. Most hard part is to open keyless entry fob's case. It's pretty simple with our step by step guide.

Auto repair shop's cost for change the battery in remote key fob is from $30 to as high as $500 depending on the make.

Remote key fob batteries in Toyota 4Runner should be changed once in 3-4 years, also this will differ based on frequency of use and build quality. If your key fob decreased signal strength, you should replace batteries before it stop close doors and make trouble for you.

If your Toyota 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 remote key fob needed. Currently installed battery is dead with a high probability, but if it's not fix, keyless entry remote change or repair needed.
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Fob Compatibility:

  1. FCC ID: HYQ12BBY
  2. Models: 2010-2020 Toyota 4 Runner