2003 Lexus LS 430 Key Fob Battery Replacement Instructions

2003 Lexus LS 430 Key Fob Battery Replacement Instructions

Keyless entry remote allow easy access to your auto. When the keyless entry remote battery is weak or dead you will lose your fob’s ability to use distance functions. In this article, we explained how to disassembly your car key fob and replace your Lexus key battery step by step.

What size battery does 2003 Lexus LS 430 remote key fob required

Prior to disassembly keyless entry remote be sure that you have all required tools and materials: flat head screwdriver and CR1616 battery.
  • flat head screwdriver
  • 1xCR1616 battery

Simple steps to replace the battery in your LS 430's remote key fob

A button battery installed inside the your key fob. Remove any internal key first, and then try to pry apart the remote key fob.

Gently try to pry apart your fob with pry tools. Replace 1 CR1616 battery with flat head screwdriver.

Now it's time to install new battery in keyless entry fob's shell. Battery must be installed with the same position as was an old. Your remote key fob will not work if you by mistake put battery wrong way.

When the new battery installed, verify remote key fob functionality by pressing buttons. If everything is functioning, assemble your keyless entry fob's case in reverse order.

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

Key Fob Battery Replacement 2003 Lexus LS 430 Video

Lexus LS430 Key Fob Battery Replacement - EASY DIY

Still not working? Buy new one

Frequently Asked Questions

Key fob of Lexus LS 430 require 1xCR1616 batteries. Most CR1616 batteries are under $6 depending on the size packaging, brand and type you buy. You can take old battery to the store, to find a proper replacement.

Often, after keyless entry remote battery change, you do not need to reprogram. Keyless entry remote reprogramming procedure often described in user's manual of your vehicle.

Yes, you can change battery in your 2003 Lexus LS 430 keyless entry remote yourself. Most hard part is to open fob’s case. It's pretty simple with our instruction.

Dealer service pricing for change the battery in keyless entry remote is $50-600 depending on the make.

You should replace batteries inside key fob of modern cars at least every three years. lifespan of battery vary on their amount of use, operating conditions and quality. Lithium cells usually will last longer.

These symptoms will warning you that it's possible time to change battery in your 2003 Lexus LS 430: signal strength reduced, key fob buttons not working, you didn't change battery more than 4 years and low key battery indicator on dashboard.
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Fob Compatibility:

  1. FCC ID: HYQ12BBK | NI412BBB
  2. Models: 2001-2006 Lexus LS 430