How to Replace the Battery in a 2005 Kia Optima Key Fob

How to Replace the Battery in a 2005 Kia Optima Key Fob

If your Optima keyless entry remote is no longer working correct, the cell battery most likely must to be changed. In this article, we outlined how to open your car keyless entry remote and change your Kia key battery step by step.

What size battery does 2005 Kia Optima remote key fob take

Replacing battery in keyless entry remote require flat head screwdriver and one CR2032 battery. Prepare these materials and tools before opening and make sure to match the type of your fob’s batteries.
  • flat head screwdriver
  • 1xCR2032 battery

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

Inside of your key fob installed tiny coin battery. Gently try to open your key fob with flat head screwdriver. Change one CR2032 battery with flat head screwdriver.

Now it's time to install new battery inside keyless entry fob's shell. Battery must be placed with the same polarity as was an old. Your remote key fob will not work if you mistakenly put battery wrong way.

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

The last thing to do is put your cover back on fob. Gently try to assemble the pieces in place by hands from top to bottom. If your key shell firmly closed, we done. If not, repeat the last step.

Video of key fob disassembly

How To Replace Kia Optima Key Fob Battery 2003 2004 2005

Still not working? Buy new one

FAQ

Keyless entry remote of Kia Optima use 1xCR2032 batteries. Most CR2032 batteries are under $6 build upon the brand, size packaging and type you buy. Take your old battery to the store, to be sure.

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

Yes, you can replace battery in your 2005 Kia Optima key fob yourself. Most difficult part is to open fob’s case. It's pretty simple with our guide.

The cost to change the battery in remote key fob is from $30 to as high as $500 depending on the make and the service station.

Key fob batteries in Kia Optima should be replaced every three years, but this will differ based on frequency of use and quality. If your remote key fob shortened signal strength, you should change batteries before it stop open doors and make trouble for you.

If your car key fob buttons not working, need multiple clicks to unlock or lock doors, signal strength reduced or has low key battery indicator on dashboard, in most cases battery change inside keyless entry remote required. Installed battery is weak or dead with a high probability, but if it's not help to fix issues, keyless entry remote change or repair needed.
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Fob Compatibility:

  1. FCC ID: PLN BONTEC-T011
  2. Models: 2002-2006 Kia Optima