How to Replace the Battery in a 2012 Lexus CT 200h Key Fob

How to Replace the Battery in a 2012 Lexus CT 200h Key Fob

If your CT 200h key fob is not open doors correct, the battery surely needs to be replaced. In this case, you will benefit from knowing how to open your keyless entry remote and replace a discharged battery yourself. If you decide to do it at home near CT 200h, use this instruction, but don't forget to check tools and materials required before you start.

What type battery remote key fob require

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

Simple steps to replace the battery in your car's keyless entry remote

A coin battery installed inside the your key fob. Move the key out of the way if it is in the key fob.

Carefully try to open your keyless entry remote with flat head screwdriver. Replace 1xCR1632 battery with flat head screwdriver.

Now it's time to install new battery in fob’s shell. Battery must be placed with the same polarity as was a previous. Your key will not work if you mistakenly put battery wrong way.

Before assembling keyless entry fob's case, make sure that everything is functioning by testing buttons on circuit board.

At this point squeeze fob’s back cover together. Line your shell pieces together and put it in place by hands from top to bottom. Inspect your keyless entry remote case for gaps. If it is not firmly closed try to repeat last step.

Video of key opening

Lexus CT200h key fob remote battery replacement how to 2013

Still not working? Buy new one

Frequently Asked Questions

Remote key fob of Lexus CT 200h require 1xCR1632 batteries. Price for CR1632 batteries are under $4 depending on the type, size packaging and brand you buy. Take your old battery to the store, to find a proper replacement.

Keyless entry remote in most of cases do not require 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 2012 Lexus CT 200h keyless entry remote yourself. Most hard part is to open fob’s case. It's pretty easy with our guide.

The price to replace the battery inside fob is in range from $30 to as high as $500 depending on the brand and the service station.

Key fob batteries in Lexus CT 200h should be changed once in 3-4 years, although this will vary based on usage and battery quality. If your key fob reduced signal strength, you should change batteries before it stop working and make trouble for you.

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

  2. Models: 2011-2014 Lexus CT200H