How to Open Your 2003 Acura TL Key Fob & Change Battery

How to Open Your 2003 Acura TL Key Fob & Change Battery

If your TL remote key fob is no longer open doors correct, the battery surely needs to be replaced. It's not complicated to replace the battery in your remote key fob by yourself. All you need is outlined below.

What type battery keyless entry remote use

Prior to disassembly key fob check all that you need: 1 CR2025 battery, phillips head screwdriver and flat head screwdriver.
  • phillips head screwdriver
  • 1xCR2025 battery
  • flat head screwdriver

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

Inside of your key fob installed tiny button cell battery. Remove fasteners on the back of the remote key fob. Spin the key fob over and look for at least 1 screw holding in the plastic.

Delicately try to pry apart your keyless entry remote with pry tools. Replace 1xCR2025 battery with flat head screwdriver.

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

After the new battery installed, check key fob functionality by pressing buttons. If all functions works, assemble your keyless entry fob's case in reverse order.

At this point squeeze fob’s back cover together. Line your body pieces together and assemble it in place by hands from top to bottom. If your fob case firmly closed, we done. If not, repeat the last step. Screw fastener in the back of the keyless entry remote.

Video of remote key fob disassembly

DIY Acura TL Key Fob Battery Change - EASY!

Still not working? Buy new one


Keyless entry remote of Acura TL require 1xCR2025 batteries. Price for CR2025 batteries are under $4-6 depending on the type, brand and size packaging you buy. You can take old battery to the store, to be sure.

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

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

The cost to change the battery inside key fob is in range $50-600 depending on the car and the service station.

You should replace batteries inside remote key fob of modern cars at least every three years. lifespan of battery differ on frequency of use, operating conditions and quality.

These signs will warn you that it's probably time to change battery in your 2003 Acura TL: you didn't change battery more than 4 years, key fob buttons not working, low key battery indicator on dashboard and multiple clicks to unlock or lock doors required.
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Fob Compatibility:

  1. FCC ID: E4EG8D-444H-A
  2. Models: 1999-2003 Acura TL