How to Replace the Battery in a 2009 Acura TSX Key Fob

How to Replace the Battery in a 2009 Acura TSX Key Fob

Key fob allow access to your Acura. When the key fob battery is weak you lose your fob’s ability to use remote opportunities. Below, we described how to open your keyless entry remote and replace your Acura key battery step by step.

What type battery does 2009 Acura TSX key fob required

Replacing battery in remote key fob require phillips head screwdriver, flat head screwdriver and 1 CR1616 battery. Prepare these materials and tools before opening and make sure to match the type of your fob’s batteries.
  • 1xCR1616 battery
  • phillips head screwdriver
  • flat head screwdriver

Step by step instruction

A small coin battery installed inside the your keyless entry remote. Remove screw on the back of the remote key fob. Flip the remote key fob over and find for at least 1 screw holding in the plastic.

Delicately try to disassemble your fob with flat head screwdriver. Change 1 CR1616 battery with flat head screwdriver.

Change old battery with fresh one CR1616. 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 polarity on battery, by "+" mark.

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

The last thing to do is put your cover back on fob. Accurately try to put the two halves in place by hands from top to bottom. If your fob shell firmly closed, we done. If not, repeat the last step. Screw the back of the keyless entry remote.

Video of keyless entry remote opening

Acura TSX Key Fob Battery Replacement (2009 - 2014)

Still not working? Buy new one


Remote key fob of Acura TSX require 1xCR1616 batteries. Most CR1616 batteries are under $6 build upon the brand, type and size packaging you buy. Take your old battery to the store, to find a proper replacement.

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

Yes, you can replace battery in your 2009 Acura TSX key yourself. Most difficult part is to open keyless entry fob's case. It's pretty easy with our step by step guide.

The cost to replace the battery inside key fob is in range from $30 to as high as $500 depending on the brand and the service station.

You should replace batteries inside keyless entry remote of modern cars at least every 4 years. The term of battery differ on frequency of use, quality and operating conditions.

These symptoms will alert you that it's possible time to replace battery in your 2009 Acura TSX: you didn't change battery more than 4 years, signal strength reduced, low key battery indicator on dashboard and multiple clicks to unlock or lock doors required.
Be the first to comment.
Your message is required.

Fob Compatibility:

  2. Models: 2009-2014 Acura TSX