How to Replace the Battery in a 2002 Hyundai Sonata Key Fob

How to Replace the Battery in a 2002 Hyundai Sonata Key Fob

Key fob grant easy access to your Sonata. When the keyless entry remote battery is dead you lose your keyless entry fob's ability to use distance opening function. Below, you will benefit from knowing how to open your keyless entry remote and change a dead battery yourself. If you gonna solve to do it at home near Sonata, use this instruction, but don't forget to check tools and materials required before you start.

What type battery remote key fob use

Don't forget before disassembly remote key fob check all that you need: flat head screwdriver and 1xCR2032 battery.
  • flat head screwdriver
  • 1xCR2032 battery

Simple steps to replace the battery in your Sonata's key fob

Inside of your key fob installed coin battery. Carefully try to open your key fob with flat head screwdriver. Replace CR2032 battery with flat head screwdriver.

Replace old battery with fresh one CR2032. Be sure to connect the battery the right way around in a circuit. Your key fob will not work if you connect battery wrong way.

After the new battery installed, check keyless entry remote by pressing buttons. If everything working properly, assemble your keyless entry fob's case in reverse order.

At this point squeeze keyless entry fob's back cover together. Line your body pieces together and assemble it in place by hands from top to bottom. Check your fob shell for gaps. If it is not tightly closed try to repeat last step.

How to replace the battery video instruction

2002-05 Hyundai Sonata Key FOB Remote Programming

Still not working? Buy new one

Frequently Asked Questions

Remote key fob of Hyundai Sonata use 1xCR2032 batteries. Most CR2032 batteries are under $4 depending on the type, brand and size packaging you buy. Take your old battery to the store, with you to find a proper replacement.

Often, after keyless entry remote battery change, reprogramming not required. Don't be scare of this procedure, because often it's described in user's manual.

Yes, you can change battery in your 2002 Hyundai Sonata key fob yourself. Most hard part is to disassembly fob’s case. It's pretty easy with our step by step guide.

Dealer service price for change the battery in key is from 50 to 600 dollars depending on the make.

You should replace batteries inside keyless entry remote of modern cars at least once in three years. The term of battery vary on usage time, quality and operating conditions. Lithium cells usually will last longer.

If your Hyundai signal strength reduced, need multiple clicks to unlock or lock doors, has low key battery indicator on dashboard or key fob buttons not working, it's probably battery change inside remote key fob required. Current battery is weak or dead with a high probability, but if it's not fix problem, keyless entry remote replace or repair required.
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Fob Compatibility:

  1. FCC ID: PINHACOEF311T
  2. Models: 2001-2005 Hyundai Sonata