How to Replace the Battery in a 2002 Lexus ES 300 Key Fob

How to Replace the Battery in a 2002 Lexus ES 300 Key Fob

If your car keyless entry remote isn't open doors properly, the battery more likely must to be changed. In this post, we described how to open your car keyless entry remote and replace your Lexus key battery.

What kind of battery keyless entry remote use

Prior to open key fob be sure that you have all recommended tools and materials: flat head screwdriver and 1 CR1616 battery.
  • 1xCR1616 battery
  • flat head screwdriver

Simple steps to replace the battery in your ES 300's remote key fob

Inside of your remote key fob installed coin battery. Delicately try to disassemble your fob with pry tools. Remove CR1616 battery with flat head screwdriver.

Change old battery with fresh one CR1616. 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 position on battery, by "+" mark.

After the new battery installed, check key fob by pressing buttons. If all functions works, assemble your keyless entry fob's shell in reverse order.

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

Key Fob Battery Replacement 2002 Lexus ES 300 Video

How to ● Lexus Key Fob Remote Keyless Battery Change/Replace and Broken Casing

Still not working? Buy new one

Frequently Asked Questions

Keyless entry remote of Lexus ES 300 require 1xCR1616 batteries. Most CR1616 batteries are under $5 depending on the type, size packaging and brand you buy. Take your old battery to the store, with you to find a proper replacement.

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

Replacing your key fob battery is simple to do in 2002 Lexus ES 300. Most of car manufacturers think of the customers and make a special hole for key fob disassembly.

The price to replace the battery inside key is from $30 to as high as $500 depending on the make and the service pricing.

You should replace batteries inside remote key fob of Lexus ES 300 at least every three or four years. The lifetime of battery vary on usage time, quality and operating conditions. Famous brands cells usually will last longer.

These signs will warn you that it's probably time to change battery in your Lexus ES 300: low key battery indicator on dashboard, signal strength reduced, multiple clicks to unlock or lock doors required and key fob buttons not working.
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Fob Compatibility:

  1. FCC ID: HYQ1512V
  2. Models: 2002-2003 Lexus ES 300