How to Replace the Battery in a 2007 Lexus RX 400h Key Fob

How to Replace the Battery in a 2007 Lexus RX 400h Key Fob

If your car key is not open doors perfectly, the cell battery surely needs to be changed. Yes, it is possible to change the battery in your remote key fob, and it’s easier than you think. Everything you need is explained in this post.

What type battery keyless entry remote use

Before beginning open keyless entry remote make sure that you have all recommended tools and materials: flat head screwdriver and 1xCR1632 battery.
  • flat head screwdriver
  • 1xCR1632 battery

Simple steps to replace the battery in your RX 400h's keyless entry remote

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

Carefully try to pry apart your key with flat head screwdriver. Remove 1 CR1632 battery with flat head screwdriver.

Now it's time to install new battery in fob’s shell. Be sure to connect the battery the right way around in a circuit. Your keyless entry remote will not work if you place battery wrong way.

Before assembling keyless entry fob's case, check that all functions works by pressing 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 remote key fob shell firmly closed, we done. If not, repeat the last step.

Key Fob Battery Replacement 2007 Lexus RX 400h Video

Lexus RX Key Battery Replacement - Quick & Easy in 4K - RX330 RX350 RX400h

Still not working? Buy new one


Key fob of Lexus RX 400h use 1xCR1632 batteries. Price for CR1632 batteries are under $4-6 build upon the size packaging, brand and type you buy. You can take old battery to the store, to find a proper replacement.

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

Yes, you can replace battery in your 2007 Lexus RX 400h keyless entry remote yourself. Most difficult part is to open fob’s case. It's pretty easy with our instruction.

Car service cost for replace the battery in remote key fob is from 50 to 600 dollars depending on the brand.

You should replace batteries inside remote key fob of Lexus RX 400h at least once in four years. The lifetime of battery vary on their amount of use, quality and operating conditions.

If your car key fob buttons not working, need multiple clicks to unlock or lock doors, signal strength reduced or fob's battery more than 4 years old, in most cases battery change in remote key fob required. Current battery is dead or weak with a high probability, but if it's not help to fix issues, key change or repair needed.
Be the first to comment.
Your message is required.

Fob Compatibility:

  2. Models: 2006-2008 Lexus 450H