Change Your Key Fob Battery Today: A Step-by-Step Guide
What To Know
- But don’t worry, changing a key fob battery is a simple DIY task that can be done in minutes, saving you a trip to the dealership.
- While a dead battery is the most common reason for a malfunctioning key fob, other issues can arise.
- Use a soft cloth to clean the contacts on the key fob and your car.
Your car key fob, that trusty little device that unlocks your car doors and starts your engine, is powered by a small battery. Just like any battery, it eventually runs out of juice, leaving you stranded and fumbling with your keys. But don’t worry, changing a key fob battery is a simple DIY task that can be done in minutes, saving you a trip to the dealership. This guide will walk you through the process, step-by-step, so you can get back to driving in no time.
Identifying the Battery Type
The first step is to figure out what type of battery your key fob uses. Most key fobs use a standard CR2032 or CR2025 lithium battery. You can find this information on the back of your key fob, often printed near the key fob’s serial number. If you’re unsure, a quick online search for your car make and model will reveal the battery type.
Gathering Your Supplies
Once you know the battery type, gather the following supplies:
- New battery: Make sure you purchase the correct battery type for your key fob.
- Small screwdriver: You’ll need this to open the key fob’s casing.
- Tweezers (optional): These can be helpful for removing the old battery.
Disassembling the Key Fob
Now, it’s time to carefully open your key fob. The exact process will vary depending on your key fob’s design. Here are some common methods:
- Sliding tabs: Some key fobs have small tabs on the sides or back. Gently slide these tabs away from each other to open the key fob.
- Screws: Other key fobs use screws to hold the casing together. Use your small screwdriver to loosen and remove the screws.
- Pry tool: If you can’t find any visible tabs or screws, you may need a small pry tool to gently separate the key fob’s halves. Be cautious not to scratch or damage the key fob’s surface.
Replacing the Battery
Once the key fob is open, you’ll see the old battery. Carefully remove it using your fingers or tweezers. Now, insert the new battery, making sure to align it correctly (usually indicated by a plus and minus sign).
Reassembling the Key Fob
After inserting the new battery, carefully close the key fob and reassemble it. If you used screws, tighten them securely. If you used sliding tabs, ensure they’re properly locked.
Testing the Key Fob
With the key fob reassembled, test it to make sure the new battery is working. Try unlocking and locking your car doors, and if your key fob has a remote start function, test that as well.
Beyond the Battery: Troubleshooting Key Fob Issues
While a dead battery is the most common reason for a malfunctioning key fob, other issues can arise. Here are some troubleshooting tips:
- Check the key fob’s range: If your key fob isn’t working at all, it might be out of range. Try getting closer to your car.
- Clean the key fob’s contacts: Dirt and debris can interfere with the key fob’s signal. Use a soft cloth to clean the contacts on the key fob and your car.
- Check the car’s battery: A weak car battery can also affect the key fob’s functionality.
- Reset the key fob: Some key fobs can be reset by pressing a specific combination of buttons. Consult your car’s manual for instructions.
The Key Fob’s Second Life: A Final Check
After successfully changing the battery, your key fob should be good to go. However, it’s always a good idea to perform a final check.
- Test all functions: Ensure your key fob can unlock and lock the doors, start the engine (if applicable), and perform any other functions.
- Double-check the battery: Make sure the new battery is properly inserted and secure.
- Store the old battery: Dispose of the old battery responsibly, as they contain hazardous materials.
Moving Forward: Maintaining Your Key Fob
Changing your key fob battery is a simple task that can save you time and money. To ensure your key fob stays in good working order, consider these tips:
- Replace the battery regularly: Even if the battery is not completely dead, it’s a good idea to replace it every 12-18 months to ensure optimal performance.
- Keep the key fob clean: Wipe down the key fob with a soft cloth to remove dirt and debris.
- Avoid extreme temperatures: Extreme heat or cold can damage the battery and shorten its lifespan.
- Store the key fob properly: When not in use, keep the key fob in a cool, dry place.
What You Need to Know
Q: How long does a key fob battery last?
A: The lifespan of a key fob battery varies depending on usage and battery type. However, most key fob batteries last between 12 and 18 months.
Q: Can I use any type of battery for my key fob?
A: No, you must use the specific battery type recommended for your key fob. Using a different type of battery can damage the key fob or cause it to malfunction.
Q: What if my key fob still doesn’t work after changing the battery?
A: If your key fob is still not working after changing the battery, there may be a more serious issue. Check for damage to the key fob, or contact your car dealership or a qualified mechanic for assistance.
Q: Can I change the battery myself?
A: Yes, changing a key fob battery is a simple DIY task that can be done by most people. Just follow the steps outlined in this guide.
Q: What should I do with the old battery?
A: Lithium batteries are hazardous waste. Dispose of them properly by taking them to a local battery recycling center or following your local recycling guidelines.