How to Open Your 2008 Acura TSX Key Fob and Change Battery

How to Open Your 2008 Acura TSX Key Fob and Change Battery

If your Acura remote key fob isn't open doors properly, the cell battery surely needs to be replaced. In this post, we described how to open your remote key fob and replace your Acura key battery step by step.

What type battery does 2008 Acura TSX keyless entry remote required

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

Step by step instruction

Inside of your keyless entry remote installed small coin cell battery. Remove screw on the back of the keyless entry remote. Spin the remote key fob over and look for at least 1 fastener holding in the plastic.

Delicately try to pry apart your key fob with hands or flat head screwdriver. Remove 1 CR2025 battery with flat head screwdriver.

Replace old battery with new one CR2025. Battery must be placed with the same position as was a previous. Your key will not work if you by mistake put battery wrong way.

After the new battery installed, verify key fob by pressing buttons. If everything is functioning, assemble your keyless entry fob's shell in reverse order.

At this point squeeze fob’s back cover together. Line your shell two halves together and put it together by hands from top to bottom. If your key fob case tightly closed, we done. If not, repeat the last step. Screw fastener in the back of the key fob.

How to change the battery video guide

Acura TSX Key Fob Battery Replacement (2004 - 2008)

Still not working? Buy new one


Remote key fob of Acura TSX use 1xCR2025 batteries. Price for CR2025 batteries are under $4-6 build upon the type, brand and size packaging you buy. You can take old battery to the store, with you to find a proper replacement.

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

Changing your remote key fob battery is simple to do in 2008 Acura TSX. Most of car manufacturers think of the clients and make a special hole for remote key fob open.

The price to replace the battery inside key is $50-600 depending on the car and the service pricing.

Keyless entry remote batteries in Acura TSX should be changed once in four years, although this will vary based on usage and battery quality. If your remote key fob decreased signal strength, you should change batteries before it stop working and make problems for you.

These signs will alert you that it's probably time to replace battery in your Acura TSX: signal strength reduced, low key battery indicator on dashboard, multiple clicks to unlock or lock doors required and you didn't change battery more than 4 years.
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Fob Compatibility:

  1. FCC ID: OUCG8D-387H-A
  2. Models: 2004-2008 Acura TSX