Is your 2009 Acura TSX key fob starting to act up? You might be experiencing a decreased range, or perhaps it’s just not responding as quickly as it used to. Before you start worrying about expensive replacements or reprogramming, the most common culprit is often a simple fix: a dead battery. Replacing the battery in your 2009 Acura TSX key fob is a straightforward process you can easily do yourself, saving you time and money. This guide will walk you through each step to get your key fob working like new again.
The first sign of a weakening key fob battery is usually a reduced operating range. You might find yourself needing to be closer and closer to your Acura TSX for the remote to lock or unlock the doors. Another common symptom is intermittent operation – sometimes it works, sometimes it doesn’t. If you’re experiencing these issues with your 2009 Acura TSX key fob, it’s highly likely a battery replacement is all you need.
Replacing the battery is a very simple process that requires minimal tools. Here’s what you’ll need:
- A small Phillips head screwdriver (often a eyeglass repair kit screwdriver works perfectly)
- One CR1620 3V battery (easily available online or at most drugstores and electronics stores)
Once you have your tools and replacement battery, follow these steps to replace the battery in your 2009 Acura TSX key fob:
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Locate the small screw: On the back of your key fob, you will see a small Phillips head screw.
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Remove the screw: Using your small Phillips head screwdriver, carefully remove this screw and set it aside in a safe place.
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Open the key fob casing: After removing the screw, you should be able to gently pry open the two halves of the key fob casing. You can usually do this with your fingers, or if needed, use a small flathead screwdriver or a plastic pry tool to gently separate the halves. Be careful not to apply too much force to avoid damaging the casing.
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Identify the old battery: Once open, you’ll see the circuit board and the battery. The battery is a small, round, silver disc. Take note of the battery orientation (+ side up or down) before removing it.
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Remove the old battery: Gently pry out the old CR1620 battery. You can use your fingernail or the tip of a small screwdriver to carefully lift it out.
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Insert the new battery: Place the new CR1620 battery into the battery compartment, ensuring it’s in the same orientation as the old battery. The positive (+) side of the battery should typically face upwards, but double-check the markings inside the key fob if you are unsure.
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Reassemble the key fob: Carefully align the two halves of the key fob casing and snap them back together.
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Replace the screw: Reinstall the small Phillips head screw you removed earlier and tighten it gently until snug. Do not overtighten.
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Test your key fob: Try locking and unlocking your 2009 Acura TSX with the key fob to ensure the new battery is working correctly.
If you’ve replaced the battery and your key fob is still not working, there might be other issues. Double check that you installed the battery correctly and that it is the correct type (CR1620). If problems persist, you may need to consider other potential issues, such as key fob reprogramming or a more serious problem with your Acura TSX’s receiver. However, in most cases, replacing the battery will restore your 2009 Acura TSX key fob to proper working order, saving you a trip to the dealership and the expense of a new key fob.
