How to Open Your 2014 Lexus RX 450h Key Fob and Change Battery

How to Open Your 2014 Lexus RX 450h Key Fob and Change Battery

Remote key fob grant easy access to your Lexus. Once the key fob battery is weak or dead you lose your fob’s ability to use distance opportunities. It's not complicated to change the battery in your remote key fob DIY. All you need is explained in this article.

What kind of battery keyless entry remote require

Before going to open remote key fob be sure that you have all recommended tools and materials: CR1632 battery and flat head screwdriver.
  • 1xCR1632 battery
  • flat head screwdriver

Step by step guide

A tiny coin cell battery installed inside the your remote key fob. Move the key out of the way if it is in the keyless entry remote.

Accurately try to open your fob with hands or flat head screwdriver. Replace 1xCR1632 battery with flat head screwdriver.

Get new battery and install it inside keyless entry fob's case. Battery must be installed with the same polarity as was an old. Your key fob will not work if you mistakenly place battery wrong way.

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

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

Video of key opening

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

Still not working? Buy new one

Frequently Asked Questions

Key fob of Lexus RX 450h require 1xCR1632 batteries. Price for CR1632 batteries are under $5 depending on the size packaging, type and brand you buy. Take your old battery to the store, to find a proper replacement.

Key fob in most of cases do not need to be reprogrammed after battery replace. If your key fob not working, recheck new battery voltage. Otherwise, read user's manual or contact local dealer.

Yes, you can replace battery in your 2014 Lexus RX 450h remote key fob yourself. Most difficult part is to disassembly keyless entry fob's case. It's pretty easy with our step by step guide.

The price to change the battery in key fob can run anywhere $50-600 depending on the car and the service pricing.

You should replace batteries inside remote key fob of Lexus RX 450h at least once in four years. The term of battery differ on usage time, quality and operating conditions.

These symptoms will warn you that it's perhaps time to change battery in your 2014 Lexus RX 450h: key fob buttons not working, you didn't change battery more than 4 years, low key battery indicator on dashboard and multiple clicks to unlock or lock doors required.
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Fob Compatibility:

  1. FCC ID: HYQ14ACX
  2. Models: 2010-2015 Lexus RX 450h