2004 Lexus LS 430 Key Fob Battery Replacement Instructions

2004 Lexus LS 430 Key Fob Battery Replacement Instructions

If your LS 430 remote key fob is no longer open doors well, the cell battery likely needs to be changed. In this post, we outlined how to open your key fob and change your Lexus key battery.

What type battery keyless entry remote require

Before going to disassembly keyless entry remote check all that you need: one CR1616 battery and flat head screwdriver.
  • flat head screwdriver
  • 1xCR1616 battery

Simple steps to change the battery in your LS 430's keyless entry remote

A coin battery installed in the your keyless entry remote. 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. Remove one CR1616 battery with flat head screwdriver.

Replace old battery with new one CR1616. Battery must be placed with the same polarity as was a previous. Your remote key fob will not work if you mistakenly put battery wrong way.

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

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

How to change the battery video guide

Lexus LS430 Key Fob Battery Replacement - EASY DIY

Still not working? Buy new one

Frequently Asked Questions

Keyless entry remote of Lexus LS 430 use 1xCR1616 batteries. Most CR1616 batteries are under $4 depending on the type, brand and size packaging you buy. You can take old battery to the store, with you to find a proper replacement.

Usually, 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 2004 Lexus LS 430 remote key fob yourself. Most difficult part is to open fob’s case. It's pretty easy with our instruction.

Auto repair shop's pricing for replace the battery in remote key fob is from $30 to as high as $500 depending on the brand.

You should replace batteries inside keyless entry remote of Lexus LS 430 at least every three or four years. The term of battery vary on frequency of use, quality and operating conditions.

If your auto need multiple clicks to unlock or lock doors, key fob buttons not working, signal strength reduced or has low key battery indicator on dashboard, in most cases battery replace inside remote key fob needed. Current battery is dead or weak with a high probability, but if it's not fix, fob change or repair required.
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Fob Compatibility:

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