A dead key fob battery can leave you stranded, unable to lock or unlock your car. But don’t worry, changing the battery in your key fob is a quick and easy process that you can do yourself. This guide will walk you through everything you need to know, from identifying the right battery to getting your key fob working like new.
What You’ll Need to Change Your Key Fob Battery
Before you begin, gather the following items:
- A small flat-head screwdriver or a plastic pry tool: This will help you open the key fob casing.
- The new battery: Key fobs typically use small, round batteries like CR2032 or CR2025. Consult your owner’s manual or look for markings on the old battery to confirm the correct type.
- Optional: A small container or tray: This helps keep the small screws and battery from getting lost.
How to Change the Battery in Your Key Fob: A Step-by-Step Guide
While the exact process may vary slightly depending on the make and model of your vehicle, the general steps remain the same:
- Locate the battery compartment: Most key fobs have a small seam or groove that indicates the battery compartment cover.
- Open the key fob: Carefully insert the flat-head screwdriver or pry tool into the seam and gently pry open the cover. Avoid using excessive force, which could damage the key fob.
- Remove the old battery: Once the cover is open, you should see the battery. Gently pry it out, noting its position for installing the new one.
- Install the new battery: Align the positive (+) side of the new battery with the positive marking inside the battery compartment and press it into place.
- Reassemble the key fob: Place the cover back on and press it firmly until you hear it click shut.
Testing the New Key Fob Battery
After changing the battery, test the key fob to ensure it’s working properly:
- Lock and unlock your car: Try both the lock and unlock buttons on your key fob to confirm they are functioning correctly.
- Start the engine: If your car has push-button start, try starting the engine to ensure the key fob signal is being received.
Common Issues When Changing a Key Fob Battery (And How to Fix Them)
- The key fob still doesn’t work: If replacing the battery didn’t solve the problem, there might be another issue. This could include a faulty key fob, programming issues, or problems with your car’s receiver. Contact a qualified automotive locksmith or your dealership for further assistance.
- I can’t find the right battery size: If you’re unsure about the battery type, check your owner’s manual or look for markings on the old battery. You can also search online using your car’s make and model or visit an electronics store for assistance.
- I damaged my key fob while trying to open it: Key fob casings can be delicate. If you’re struggling to open it, consider taking it to a professional to avoid causing damage.
Tips for Maintaining Your Key Fob Battery Life
Here are a few tips to help extend the life of your key fob battery:
- Don’t repeatedly press the buttons: Avoid pressing the buttons unnecessarily, as this can drain the battery faster.
- Keep your key fob away from extreme temperatures: Heat and cold can shorten battery life.
- Replace the battery proactively: Consider changing the battery every 2-3 years, even if it’s still working, to avoid unexpected dead battery situations.
Conclusion
Changing the battery in your key fob is a simple DIY task that can save you time and money. By following the steps outlined in this guide and heeding the tips for maintaining your key fob battery life, you can keep your key fob functioning smoothly for years to come. If you encounter any difficulties or suspect a more complex issue, don’t hesitate to seek help from a qualified automotive locksmith or your dealership.
FAQs
How often should I change my key fob battery?
It’s generally recommended to change your key fob battery every 2-3 years, even if it’s still working. This can help prevent unexpected dead battery situations.
Can I use any battery in my key fob?
No, key fobs require specific types of batteries, usually small, round ones like CR2032 or CR2025. Check your owner’s manual or the old battery to find the correct type.
What if I replace the battery and my key fob still doesn’t work?
If changing the battery doesn’t solve the problem, there might be another issue, such as a faulty key fob, programming issues, or a problem with your car’s receiver. It’s best to contact a qualified automotive locksmith or your dealership for assistance.
Can I damage my key fob while trying to change the battery?
Yes, it’s possible to damage the key fob casing or internal components if you’re not careful. Use gentle pressure when prying open the casing and avoid using excessive force. If you’re unsure, consider seeking help from a professional.
Where can I get my key fob battery replaced if I don’t want to do it myself?
You can get your key fob battery replaced at various places, including auto parts stores, some convenience stores, dealerships, and automotive locksmiths.
What can cause my key fob battery to drain quickly?
Frequent button pressing, extreme temperatures, and keeping your key fob near electronic devices can contribute to faster battery drain.
Do I need to reprogram my key fob after changing the battery?
In most cases, no. Replacing the battery usually doesn’t erase the programming. However, if your key fob still doesn’t work after a battery change, there might be a programming issue that needs to be addressed.
Don’t forget to check out our other helpful guides: changing kia key fob battery, changing battery in ford key fob, changing battery jeep key fob. We have a wealth of information to keep you informed about all your car key and fob needs.
