2002 Lexus RX 300 Key Fob Battery Replacement Guide

2002 Lexus RX 300 Key Fob Battery Replacement Guide

If your car keyless entry remote is no longer open doors perfectly, the battery most likely must to be changed. In this post, we are going to tell you how to disassembly your car key fob and replace a dead or weak battery yourself. If you choose to do it at home near RX 300, follow our guide, but don't forget to check tools and materials required.

What kind of battery keyless entry remote use

Before starting disassembly remote key fob make sure that you have all recommended tools and materials: CR1616 battery and flat head screwdriver.
  • flat head screwdriver
  • 1xCR1616 battery

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

Inside of your key fob installed tiny coin battery. Delicately try to disassemble your fob with hands or flat head screwdriver. Replace one CR1616 battery with flat head screwdriver.

Replace old battery with new 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 polarity on battery, by "+" mark.

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

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

How to replace the battery video guide

How to â—Ź 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 RX 300 require 1xCR1616 batteries. Most CR1616 batteries are under $4-6 build upon the type, brand and size packaging you buy. Take your old battery to the store, to be sure.

Remote key fob in most of cases reprogramming not needed after battery replace. If your keyless entry remote not working, recheck new battery voltage. If it is not help, read user's manual or contact local dealer.

Yes, you can change battery in your 2002 Lexus RX 300 keyless entry remote yourself. Most hard part is to disassembly fob’s case. It's pretty easy with our instruction.

Auto repair shop's cost for change the battery in key fob is from 50 to 600 dollars depending on the car.

You should change batteries inside key fob of Lexus RX 300 at least every 3-4 years. The lifetime of battery differ on frequency of use, operating conditions and quality. Famous brands cells usually will last longer.

If your car need multiple clicks to unlock or lock doors, has low key battery indicator on dashboard, key fob buttons not working or signal strength reduced, it's probably battery replace in keyless entry remote needed. Currently installed battery is weak with a high probability, but if it's not help, key change or repair required.
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Fob Compatibility:

  1. FCC ID: N14TMTX-1
  2. Models: 1999-2003 Lexus RX 300