Replace Key Fob Batteries

2014 Lexus ES 300h Key Fob Battery Replacement Guide

2014 Lexus ES 300h Key Fob Battery Replacement Guide

If your car remote key fob is not working perfectly, the battery more likely needs to be changed. Yes, it is possible to replace the battery in your remote key fob by yourself. Everything you need is explained below.

What is the battery keyless entry remote require

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

Step by step instruction

Inside of your keyless entry remote installed tiny button cell battery. Move the key out of the way if it is in the key fob.

Delicately try to open your remote key fob with pry tools. Replace 1xCR2032 battery with flat head screwdriver.

Change old battery with new one CR2032. Be sure to connect the battery the right way around in a circuit. Your keyless entry remote will not work if you put battery wrong way.

After the new battery installed, verify keyless entry remote functionality by pressing buttons. If all functions works, assemble your fob’s body in reverse order.

At this point squeeze fob’s back cover together. Line your body pieces together and put it in place by hands from top to bottom. If your key case firmly closed, we done. If not, repeat the last step.

Video of key opening

DIY - LEXUS How to change SmartKey Key fob Battery on Lexus RX350 ES350 RX450

Still not working? Buy new one

Frequently Asked Questions

Remote key fob of Lexus ES 300h use 1xCR2032 batteries. Most CR2032 batteries are under $4 depending on the type, brand and size packaging you buy. You can take old battery to the store, to find a proper replacement.

Often, after keyless entry remote battery replace, you do not need to reprogram. Don't be scare of this procedure, because often it's described in user's manual.

Changing your remote key fob battery is easy to do in 2014 Lexus ES 300h. Most of car manufacturers think about customers and make a special hole for keyless entry remote open.

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

Keyless entry remote batteries in Lexus ES 300h should be changed once in 4 years, also this will differ based on their amount of use and build quality. If your key fob reduced signal strength, you should change batteries before it stop close doors and make problems for you.

If your auto need multiple clicks to unlock or lock doors, signal strength reduced, fob's battery more than 4 years old or has low key battery indicator on dashboard, it's probably battery replace inside remote key fob required. Current battery is discharged with a high probability, but if it's not help, fob change or repair required.
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Contents:

  1. Battery Size and Tools
  2. Replacement Guide
  3. Video Instruction
  4. FAQ

Other Lexus Models:

Fob Compatibility:

  1. FCC ID: HYQ14FBA
  2. Models: 2013-2018 Lexus ES 300h