Is your 2009 Toyota key fob not working as reliably as it used to? You might be facing a dead or dying battery. Don’t worry, replacing the battery in your 2009 Toyota key fob is a straightforward process you can easily handle yourself. This guide provides step-by-step instructions to get your key fob back in top shape, saving you time and money compared to dealership service.
Before we dive into the replacement process, let’s understand why your key fob battery might be draining and what you’ll need to get the job done. Like any battery, the one in your 2009 Toyota key fob has a limited lifespan. Factors like frequency of use and proximity to electronic devices can also impact battery life. Toyota themselves have acknowledged that smart keys near electronic devices can drain faster due to constant “pings” that keep the key fob active.
Recognizing the signs of a low battery is the first step. If you notice that you need to be closer to your 2009 Toyota for the remote lock/unlock to work, or if the vehicle’s dashboard displays a low key battery warning, it’s time for a replacement. Ignoring these warnings can lead to complete key fob failure, leaving you unable to remotely access or even start your car in some cases.
Luckily, replacing the battery is a breeze. Here’s what you’ll need for your 2009 Toyota Key Fob Battery Replacement:
- A new CR1632 battery. This is the standard battery type for many Toyota key fobs, including likely models from 2009. You can find these at most drugstores, electronics stores, and online retailers.
- The mechanical key that’s hidden inside your Toyota key fob. This acts as your primary tool for opening the fob.
Once you have these items, follow these simple steps to replace your 2009 Toyota key fob battery:
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Remove the Mechanical Key
Locate the small latch on the side or bottom of your 2009 Toyota key fob. Press and hold this latch while pulling out the mechanical key. This key is designed to be used as a tool for the next steps in the battery replacement process.
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Pry Open the Key Fob
Now, take the mechanical key you just removed and look for a narrow slot on the key fob. This slot is usually located in the area where you removed the mechanical key. Insert the thinnest end of the mechanical key into this slot.
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Twist to Separate the Fob Halves
With the mechanical key inserted in the slot, gently twist it. This twisting motion will apply leverage and pop open the key fob casing. You might hear a click as the two halves begin to separate. Carefully continue twisting and gently pulling apart the two halves of the key fob.
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Access and Remove the Old Battery
Once the key fob is open, you’ll see the circuit board and the battery. The battery is typically located on the back of the circuit board and held in place by small metal legs or clips. Carefully slip the end of the mechanical key under the circuit board to gently lift it if needed to access the battery more easily.
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Replace the CR1632 Battery
Note the orientation of the old battery before removing it (usually the positive side is facing up). Gently use your finger or the mechanical key to spring open the small legs or clips holding the battery in place. Remove the old battery and replace it with the new CR1632 battery, ensuring the positive side is facing the correct direction (usually upwards).
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Reassemble the Key Fob
Carefully place the circuit board back into its compartment within the key fob casing. Align the two halves of the key fob and snap them back together. You may need to apply a bit of pressure to ensure they are securely closed. Finally, slide the mechanical key back into the key fob until it clicks into place.
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Test Your Key Fob
Test your 2009 Toyota key fob to ensure it’s working correctly. Try locking and unlocking your car remotely. If everything works as expected, you’ve successfully completed your 2009 Toyota key fob battery replacement!
Tips for Extending Your Key Fob Battery Life
To maximize the lifespan of your 2009 Toyota key fob battery, consider these tips:
- Keep your key fob away from electronic devices: As Toyota’s service bulletin suggests, electronic devices like cell phones, laptops, and TVs can emit signals that cause your key fob to constantly wake up and drain the battery. Store your key fob at least a meter away from these devices when possible.
- Store spare key fobs separately: If you have a spare key fob for your 2009 Toyota, store it away from your primary key and electronic devices to preserve its battery life.
- Consider battery quality: When replacing your battery, opt for reputable brands of CR1632 batteries for optimal performance and longevity.
By following these steps, you can easily handle your 2009 Toyota key fob battery replacement and keep your key fob working reliably. This simple DIY task can save you money and the inconvenience of a non-functioning key fob.
