How to Open Your 2003 Toyota Highlander Key Fob & Change Battery

How to Open Your 2003 Toyota Highlander Key Fob & Change Battery

Keyless entry remote allow access to your car. When the keyless entry remote battery is dead you lose your fob’s ability to use distance opening function. In this article, we demonstrate how to disassembly Toyota keyless entry remote and change a weak or dead battery yourself. If you decide to do it at home near Highlander, use this instruction, but first make sure you have everything you need before you start.

What kind of battery key fob use

Don't forget before disassembly keyless entry remote check all that you need: one CR2025 battery, phillips head screwdriver and flat head screwdriver.
  • 1xCR2025 battery
  • flat head screwdriver
  • phillips head screwdriver

Step by step instruction

Inside of your key fob installed tiny button cell battery. Remove screw on the back of the remote key fob. Spin the remote key fob over and find for at least one screw holding in the plastic.

Delicately try to disassemble your key with pry tools. Change one CR2025 battery with flat head screwdriver.

Change old battery with new one CR2025. Every battery has a negative and positive side and if you put the wrong connector down, the charge cannot go into your circuit board and make it work. Check position on battery, by "+" mark.

Before assembling fob’s case, make sure that all working properly by pressing buttons on key fob.

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

Key Fob Battery Replacement 2003 Toyota Highlander Video

How To Change A Toyota Highlander Key Fob Battery (2001-2007)

Still not working? Buy new one


Keyless entry remote of Toyota Highlander use 1xCR2025 batteries. Price for CR2025 batteries are under $4-6 depending on the type, size packaging and brand you buy. You can take old battery to the store, to find a proper replacement.

Usually, after keyless entry remote battery change, reprogramming not required. Keyless entry remote reprogramming procedure often described in user's manual of your vehicle.

Replacing your key fob battery is easy to do in 2003 Toyota Highlander. Most of car manufacturers think about clients and make a special hole for remote key fob disassembly.

Dealer service price for replace the battery in fob is from $30 to as high as $500 depending on the car.

Keyless entry remote batteries in modern cars should be changed once in three years, although this will vary based on usage and build quality. If your remote key fob decreased signal strength, you should change batteries before it stop working and make trouble for you.

These symptoms will alert you that it's probably time to replace battery in your Toyota Highlander: low key battery indicator on dashboard, signal strength reduced, you didn't change battery more than 4 years and key fob buttons not working.
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Fob Compatibility:

  1. FCC ID: BAB237131-056
  2. Models: 2001-2004 Toyota Highlander