How to Open Your 2003 Hyundai Sonata Key Fob and Change Battery

How to Open Your 2003 Hyundai Sonata Key Fob and Change Battery

If your car key fob isn't open doors perfectly, the cell battery more likely must to be replaced. Below, you will benefit from knowing how to disassembly Hyundai key fob and change a discharged battery DIY. If you choose to do it at home near Sonata, use this instruction, but first make sure you have everything you need before you start.

What kind of battery keyless entry remote require

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

Simple steps to change the battery in your car's key fob

Inside of your key fob installed small coin battery. Delicately try to open your keyless entry remote with flat head screwdriver. Replace one CR2032 battery with flat head screwdriver.

Change old battery with new one CR2032. 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.

Before assembling keyless entry fob's case, make sure that all functions works by testing buttons on key fob.

The last thing to do is put your cover back on fob. Delicately try to assemble the pieces in place by hands from top to bottom. Check your key fob shell for gaps. If it is not firmly closed try to repeat last step.

Key Fob Battery Replacement 2003 Hyundai Sonata Video

2002-05 Hyundai Sonata Key FOB Remote Programming

Still not working? Buy new one

Frequently Asked Questions

Keyless entry remote of Hyundai Sonata use 1xCR2032 batteries. Price for CR2032 batteries are under $6 build upon the type, size packaging and brand you buy. You can take old battery to the store, to find a proper replacement.

Key fob in most of cases reprogramming not needed 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.

Replacing your keyless entry remote battery is simple to do in 2003 Hyundai Sonata. Most of car manufacturers think about clients and make a special hole for keyless entry remote disassembly.

Car service price for change the battery in key fob is from $30 to as high as $500 depending on the brand.

Remote key fob batteries in Hyundai Sonata should be replaced once in 4 years, although this will vary based on their amount of use and quality. If your remote key fob reduced signal strength, you should change batteries before it stop open doors and make problems for you.

These symptoms will warn you that it's possible time to change battery in your 2003 Hyundai Sonata: you didn't change battery more than 4 years, key fob buttons not working, low key battery indicator on dashboard and signal strength reduced.
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Fob Compatibility:

  2. Models: 2001-2005 Hyundai Sonata