How to Open Your 2012 Lexus RX 350 Key Fob and Change Battery

How to Open Your 2012 Lexus RX 350 Key Fob and Change Battery

If your car remote key fob is no longer unlock doors well, the cell battery most likely needs to be replaced. In this post, we described how to open your remote key fob and change your Lexus key battery.

What type battery does 2012 Lexus RX 350 key fob required

Changing battery in keyless entry remote require 1 CR1632 battery and flat head screwdriver. Prepare these materials and tools before opening and make sure to match the size of your fob’s batteries.
  • 1xCR1632 battery
  • flat head screwdriver

Step by step instruction

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

Accurately try to open your key fob with pry tools. Remove one CR1632 battery with flat head screwdriver.

Get new battery and install it inside keyless entry fob's shell. Every battery has a negative and positive side and if you put the wrong connector down, the current cannot go into your circuit board and make it work. Check polarity on battery, by "+" mark.

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

At this point squeeze keyless entry fob's back cover together. Line your shell pieces together and assemble it together by hands from top to bottom. If your keyless entry remote case tightly closed, we done. If not, repeat the last step.

How to replace the battery video guide

How to ● Lexus Key Fob Remote Keyless Battery Replace HS, ES, GS, LS, IS, GX, CT

Still not working? Buy new one

Frequently Asked Questions

Key fob of Lexus RX 350 require 1xCR1632 batteries. Most CR1632 batteries are under $4 build upon the brand, size packaging and type you buy. You can take old battery to the store, with you to find a proper replacement.

Often, after keyless entry remote battery replace, you do not need to reprogram. Keyless entry remote reprogramming procedure often described in user's manual of your vehicle.

Changing your keyless entry remote battery is simple to do in 2012 Lexus RX 350. Most of car manufacturers think about clients and make a special hole for key fob open.

The price to replace the battery in key can run anywhere from $30 to as high as $500 depending on the car and the service pricing.

Remote key fob batteries in Lexus RX 350 should be replaced every 3-4 years, but this will vary based on their amount of use and build quality. If your remote key fob shortened signal strength, you should replace batteries before it stop close doors and make problems for you.

These symptoms will warn you that it's probably time to change battery in your 2012 Lexus RX 350: low key battery indicator on dashboard, you didn't change battery more than 4 years, multiple clicks to unlock or lock doors required and signal strength reduced.
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Fob Compatibility:

  2. Models: 2009-2013 Lexus RX350