Is your 2007 Mazda 6 key fob not working as reliably as it used to? A common culprit is a dead or dying battery. Replacing the battery in your key fob is a straightforward process that can often restore its functionality. Furthermore, if you’re experiencing issues even after a battery replacement, or if your key fob has stopped working entirely, you might need to reprogram it. This guide will walk you through both the battery replacement and reprogramming procedures for your 2007 Mazda 6 key fob.
Step-by-Step Guide to Replacing Your 2007 Mazda 6 Key Fob Battery
Replacing the battery in your Mazda 6 key fob is a simple task you can do at home in just a few minutes. Here’s how:
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Locate the notch: Examine your key fob for a small notch or indentation. This is usually located on the side or bottom of the fob.
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Open the fob: Use a small flathead screwdriver or a coin to gently pry open the key fob casing at the notch. Be careful not to apply excessive force, as you could damage the plastic.
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Identify the battery: Once the fob is open, you’ll see the battery. Note the type and orientation of the battery before removing it. Most Mazda 6 key fobs from 2007 use a CR2025 or CR2032 type battery.
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Remove the old battery: Carefully remove the old battery. You can use your fingertip or the edge of a small screwdriver to gently lift it out.
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Insert the new battery: Install the new battery, ensuring it’s the correct type and that the polarity (+ and – sides) matches the markings in the fob casing.
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Reassemble the fob: Snap the two halves of the key fob casing back together until they are securely closed.
Reprogramming Your 2007 Mazda 6 Key Fob
If replacing the battery doesn’t solve the issue, or if you’ve obtained a new or used key fob, you might need to reprogram it to your 2007 Mazda 6. Follow these steps to attempt reprogramming your key fob:
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Get in your Mazda 6 and close all doors. Ensure all doors are completely closed before starting the programming sequence.
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Open the driver’s side door. Leave only the driver’s door open.
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Make sure the key is out of the ignition. Remove the key from the ignition if it is inserted.
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Use the power lock switch to lock and unlock the driver’s door. Use the physical power lock switch on the driver’s side door panel to manually lock and then unlock the door.
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Insert the key into the ignition. Place your key into the ignition cylinder.
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Turn the key to the “ON” and “OFF” position three times within 10 seconds. Turn the ignition key to the “ON” position (just before starting the engine) and then back to the “OFF” position. Repeat this cycle three times rapidly, ending in the “OFF” position. Important: Do not start the engine.
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Close and open the driver’s door three times. Close the driver’s door, then open it. Repeat this process three times, ending with the door in the open position. Tip: You can also use the door jamb switch (the button that the door presses when closed) for this step if it’s easier.
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Listen for the door locks to cycle. At this point, the door locks should automatically lock and unlock to confirm programming mode is active. If you hear the locks cycle, proceed to the next step immediately.
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Press any button on your key fob twice. Take your key fob and press any button (like “lock” or “unlock”) twice. The door locks should cycle again (lock and unlock) to confirm successful programming of that fob.
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Program additional remotes (if needed). If you have another key fob to program, immediately press any button on the second remote twice. Again, the door locks should cycle to confirm programming.
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Remove the key from the ignition. Take the key out of the ignition. The door locks should cycle one last time.
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Test your key fobs. Test all programmed key fobs to ensure they are working correctly by locking and unlocking your Mazda 6 remotely.
Troubleshooting and Additional Tips
- Ensure a fresh battery: Double-check that you are using a brand-new battery of the correct type for your key fob. A low-quality or old “new” battery can still cause issues.
- Check for blown fuses: While less common, a blown fuse related to the remote locking system could prevent programming. Consult your Mazda 6 owner’s manual for fuse box diagrams and check relevant fuses.
- Try different buttons: During the programming steps, the original instructions mention pressing any button. If you encounter issues, try using the “unlock” button specifically for the button presses in steps 7 and 9, as some users have reported better success with this.
- Seek professional help: If you’ve tried these steps multiple times and are still unable to program your key fob, there might be a more complex issue. Consider consulting a qualified automotive locksmith or your local Mazda dealership for further diagnosis and assistance. They have specialized tools and expertise to address more intricate key fob and vehicle security system problems.
By following these steps, you should be able to replace your 2007 Mazda 6 key fob battery and, if necessary, reprogram your remote. This can save you time and money compared to dealership service and get you back to conveniently using your keyless entry system.
