How to Replace the Battery in a 2015 Lexus IS 350 Key Fob

How to Replace the Battery in a 2015 Lexus IS 350 Key Fob

If your car keyless entry remote is no longer open doors properly, the cell battery probably needs to be changed. It's not difficult to replace the battery in your remote key fob, and it’s easier than you think. Everything you need is described in this post.

What size battery does 2015 Lexus IS 350 key fob required

Prior to disassembly remote key fob check all that you need: one CR2032 battery and flat head screwdriver.
  • flat head screwdriver
  • 1xCR2032 battery

Step by step guide

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

Delicately try to disassemble your key with flat head screwdriver. Change one CR2032 battery with flat head screwdriver.

Get new battery and install it in keyless entry fob's body. Be sure to connect the battery the right way around in a circuit. Your remote key fob will not work if you place battery wrong way.

Before assembling fob’s case, verify that all functions works by testing 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. If your fob case tightly closed, we done. If not, repeat the last step.

Key Fob Battery Replacement 2015 Lexus IS 350 Video

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Still not working? Buy new one

Frequently Asked Questions

Key fob of Lexus IS 350 require 1xCR2032 batteries. Price for CR2032 batteries are under $6 depending on the size packaging, brand and type you buy. You can take old battery to the store, to be sure.

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

Yes, you can change battery in your 2015 Lexus IS 350 key yourself. Most difficult part is to open fob’s case. It's pretty easy with our guide.

Car service pricing for change the battery in key is from $30 to as high as $500 depending on the brand.

You should change batteries inside remote key fob of Lexus IS 350 at least once in three years. The lifetime of battery differ on frequency of use, operating conditions and quality. Famous brands cells normally will last longer.

These signs will alert you that it's perhaps time to change battery in your 2015 Lexus IS 350: low key battery indicator on dashboard, signal strength reduced, you didn't change battery more than 4 years and multiple clicks to unlock or lock doors required.
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Fob Compatibility:

  2. Models: 2014-2019 Lexus IS350