Replace Key Fob Batteries

How to Open Your 2018 Lexus RX 350 Key Fob and Change Battery

How to Open Your 2018 Lexus RX 350 Key Fob and Change Battery

If your RX 350 keyless entry remote isn't unlock doors well, the battery most likely must to be changed. It's not difficult to change the battery in your remote key fob, and it’s easier than you think. Everything you need is explained below.

What kind of battery keyless entry remote require

Don't forget before disassembly keyless entry remote check all that you need: flat head screwdriver and one CR2032 battery.
  • 1xCR2032 battery
  • flat head screwdriver

Step by step instruction

Inside of your keyless entry remote installed small coin battery. Move the key out of the way if it is in the keyless entry remote.

Accurately try to pry apart your fob with pry tools. Change 1xCR2032 battery with flat head screwdriver.

Replace old battery with fresh one CR2032. Be sure to connect the battery the right way around in a circuit. Your key fob will not work if you connect battery wrong way.

When the new battery installed, verify key fob by pressing buttons. If all functions works, assemble your fob’s shell in reverse order.

The last thing to do is put your cover back on fob. Carefully try to put the pieces together 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 2018 Lexus RX 350 Video

DIY - LEXUS How to change SmartKey Key fob Battery on Lexus RX350 ES350 RX450

Still not working? Buy new one

Frequently Asked Questions

Remote key fob of Lexus RX 350 use 1xCR2032 batteries. Price for CR2032 batteries are under $5 depending on the type, brand and size packaging you buy. Take your old battery to the store, with you to find a proper replacement.

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

Yes, you can change battery in your 2018 Lexus RX 350 remote key fob yourself. Most difficult part is to disassembly fob’s case. It's pretty simple with our guide.

Car service price for replace the battery in key fob is from $30 to as high as $500 depending on the make.

You should change batteries inside key fob of Lexus RX 350 at least once in three or four years. The term of battery vary on their amount of use, quality and operating conditions. Lithium cells normally will last longer.

If your car fob's battery more than 4 years old, key fob buttons not working, need multiple clicks to unlock or lock doors or signal strength reduced, in most cases battery change in key fob needed. Currently installed battery is discharged with a high probability, but if it's not help, key fob change or repair needed.
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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: HYQ14FBB
  2. Models: 2016-2018 Lexus RX350