Replace Key Fob Batteries

2004 Toyota Yaris Key Fob Battery Replacement Guide

2004 Toyota Yaris Key Fob Battery Replacement Guide

If your car key isn't open doors properly, the battery most likely must to be changed. In this post, we demonstrate how to disassembly Toyota keyless entry remote and change a weak or dead battery yourself. If you choose to do it at home near Yaris, follow our instruction, but first make sure you have everything you need.

What type battery does 2004 Toyota Yaris key fob take

Before you start to disassembly key fob make sure that you have all recommended tools and materials: flat head screwdriver, phillips head screwdriver and one CR2016 battery.
  • phillips head screwdriver
  • flat head screwdriver
  • 1xCR2016 battery

Step by step guide

A button cell battery installed inside the your keyless entry remote. Unscrew the back of the remote key fob. Spin the remote key fob over and find for at least 1 screw holding in the plastic.

Accurately try to pry apart your fob with flat head screwdriver. Change one CR2016 battery with flat head screwdriver.

Get new battery and install it in keyless entry fob's body. Battery must be installed with the same polarity as was an old. Your remote key fob will not work if you by mistake place battery wrong way.

When the new battery installed, verify keyless entry remote by pressing buttons. If all functions works, assemble your fob’s body in reverse order.

At this point squeeze keyless entry fob's back cover together. Line your case two halves together and assemble it together by hands from top to bottom. Inspect your remote key fob body for gaps. If it is not tightly closed try to repeat last step. Screw the back of the remote key fob.

Video of key opening

Toyota Yaris Key Fob battery Replacement

Still not working? Buy new one

Frequently Asked Questions

Keyless entry remote of Toyota Yaris use 1xCR2016 batteries. Price for CR2016 batteries are under $4-6 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.

Usually, after key battery replace, reprogramming not required. Don't be scare of this procedure, because often it's described in user's manual.

Changing your remote key fob battery is easy to do in 2004 Toyota Yaris. Most of car manufacturers think of the customers and make a special hole for remote key fob disassembly.

The cost to replace the battery inside key fob can run anywhere from $30 to as high as $500 depending on the car and the service station.

Remote key fob batteries in Toyota Yaris should be replaced every three years, but this will differ based on usage and quality. If your keyless entry remote shortened signal strength, you should change batteries before it stop working and make trouble for you.

If your Yaris fob's battery more than 4 years old, signal strength reduced, has low key battery indicator on dashboard or key fob buttons not working, it's probably battery change inside key fob required. Installed battery is dead with a high probability, but if it's not help, key fob change or repair needed.
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Contents:

  1. Battery Size and Tools
  2. Replacement Guide
  3. Video Instruction
  4. FAQ

Other Toyota Models:

Fob Compatibility:

  1. FCC ID: HYQ12BBX
  2. Models: 2000-2008 Toyota Yaris