Replace Key Fob Batteries

How to Replace the Battery in a 2005 Lexus SC 430 Key Fob

How to Replace the Battery in a 2005 Lexus SC 430 Key Fob

If your auto remote key fob is no longer working properly, the battery likely needs to be changed. Yes, it is possible to change the battery in your key fob DIY. All tools, that you need is outlined below.

What type battery does 2005 Lexus SC 430 keyless entry remote take

Before going to open remote key fob check all that you need: flat head screwdriver and one CR1616 battery.
  • 1xCR1616 battery
  • flat head screwdriver

Step by step guide

Inside of your key fob installed small coin cell battery. Move the key out of the way if it is in the key fob.

Carefully try to disassemble your fob with hands or flat head screwdriver. Replace one CR1616 battery with flat head screwdriver.

Now it's time to install new battery inside fob’s shell. Every battery has a negative and positive side and if you put the wrong connector down, the charge cannot go into your circuit board and make it work. Check polarity on battery, by "+" mark.

Before assembling keyless entry fob's case, make sure that all functions works by pressing buttons on circuit board.

At this point squeeze fob’s back cover together. Line your case two halves together and put it in place by hands from top to bottom. Inspect your remote key fob body for gaps. If it is not tightly closed try to repeat last step.

How to replace the battery video instruction

Lexus LS430 Key Fob Battery Replacement - EASY DIY

Still not working? Buy new one

FAQ

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

Keyless entry remote in most of cases reprogramming not needed after battery change. If your remote key fob not working, recheck new battery voltage. Otherwise, read user's manual or contact local dealer.

Yes, you can replace battery in your 2005 Lexus SC 430 keyless entry remote yourself. Most difficult part is to open keyless entry fob's case. It's pretty easy with our step by step guide.

The price to replace the battery inside key fob is in range from $30 to as high as $500 depending on the car and the service station.

Key fob batteries in Lexus SC 430 should be changed once in three or four years, but this will vary based on their amount of use and quality. If your remote key fob shortened signal strength, you should change batteries before it stop working and make trouble for you.

These signs will warn you that it's probably time to replace battery in your Lexus SC 430: you didn't change battery more than 4 years, key fob buttons not working, multiple clicks to unlock or lock doors required and signal strength reduced.
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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: HYQ12BBK | NI412BBB
  2. Models: 2002-2010 Lexus SC 430