How to Replace the Battery in a 2010 Lexus RX 350 Key Fob

How to Replace the Battery in a 2010 Lexus RX 350 Key Fob

If your RX 350 key is not open doors perfectly, the cell battery surely needs to be changed. In this post, we demonstrate how to open your keyless entry remote and replace a weak or dead battery yourself. If you choose to do it at home near RX 350, use this instruction, but first make sure you have everything you need.

What kind of battery remote key fob use

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

Step by step instruction

A small coin battery installed inside the your remote key fob. Remove any internal key before you try to pry apart the key fob.

Delicately try to pry apart your fob with flat head screwdriver. Replace 1xCR1632 battery with flat head screwdriver.

Replace old battery with new one CR1632. Be sure to connect the battery the right way around in a circuit. Your remote key fob will not work if you put battery wrong way.

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

The last thing to do is put your cover back on fob. Carefully try to put the two halves in place by hands from top to bottom. If your fob body tightly closed, we done. If not, repeat the last step.

How to change the battery video instruction

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

Keyless entry remote of Lexus RX 350 use 1xCR1632 batteries. Most CR1632 batteries are under $5 depending on the type, size packaging and brand you buy. You can take old battery to the store, with you to find a proper replacement.

Keyless entry remote in most of cases do not need to be reprogrammed after battery change. If your keyless entry remote not working, recheck new battery voltage. If it is not help, read user's manual or contact local dealer.

Yes, you can change battery in your 2010 Lexus RX 350 key fob yourself. Most hard part is to disassembly keyless entry fob's case. It's pretty easy with our guide.

Car service pricing for replace the battery in key fob is $50-600 depending on the make.

Key fob batteries in modern cars should be replaced every 3-4 years, although this will vary based on their amount of use and quality. If your keyless entry remote reduced signal strength, you should change batteries before it stop working and make trouble for you.

If your RX 350 key fob buttons not working, fob's battery more than 4 years old, need multiple clicks to unlock or lock doors or signal strength reduced, in most cases battery replace in key fob needed. Current battery is dead with a high probability, but if it's not help to fix issues, remote key fob change or repair needed.
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Fob Compatibility:

  1. FCC ID: HYQ14ACX
  2. Models: 2009-2013 Lexus RX350