Have you ever pressed the button on your Nissan key fob only to be met with silence? A dead key fob battery is a common inconvenience, but thankfully, it’s usually a simple fix. Understanding the Battery Size Nissan Key Fob requires is the first step to getting back on the road quickly. This guide, brought to you by the auto experts at keyfobx.com, will walk you through everything you need to know about your Nissan key fob battery, from accessing your car with a dead fob to replacing the battery yourself.
Getting into Your Nissan When the Key Fob Battery Dies
Even with a dead battery, your Nissan key fob is designed to get you into your vehicle and start the engine. Nissan Intelligent Key fobs come equipped with a mechanical emergency key. Here’s how to use it:
- Locate the Emergency Key: On the back of your key fob, find a small release latch or button. Press this to detach and slide out the emergency key.
- Unlock Your Door: Use the physical emergency key to manually unlock your Nissan door, just like a traditional key.
- Starting Your Nissan: Once inside, the starting procedure depends on whether your Nissan has a key fob port.
- With a Key Fob Port: Insert the entire key fob into the designated port, then press the brake pedal (or clutch for manual transmissions) and push the START/STOP button.
- Without a Key Fob Port: If there’s no port, press the brake pedal (or clutch) and firmly press the START/STOP button with your key fob. In some models, you might need to touch the key fob directly to the START/STOP button.
If you encounter any difficulties accessing or starting your Nissan despite these steps, it’s always best to reach out to a qualified service professional for assistance.
Identifying the Correct Nissan Key Fob Battery Size
Knowing the correct battery size Nissan key fob uses is crucial for a successful replacement. The battery type can differ based on your Nissan model and the year it was manufactured. Here are the primary ways to determine the right battery:
- Check Your Owner’s Manual: Your Nissan owner’s manual is your best first resource. It should specify the exact battery type required for your key fob. Look for the section on “Intelligent Key” or “Key Fob Battery Replacement.”
- Open Your Key Fob and Inspect the Old Battery: If you can’t find your manual or prefer a direct approach, you can carefully open your key fob. (Instructions on how to do this are in the next section). Once open, the dead battery will have its type clearly printed on it. Common Nissan key fob battery sizes are:
- CR2025: This is a very common 3V lithium battery size found in many Nissan key fobs.
- CR2032: Another frequent choice, the CR2032 is also a 3V lithium battery, slightly thicker than a CR2025, offering a longer lifespan in some cases.
It’s always recommended to double-check the battery type before purchasing a replacement to ensure compatibility and proper function of your Nissan key fob. You can find these batteries at most drugstores, hardware stores, and online retailers.
Step-by-Step Nissan Key Fob Battery Replacement Guide
Replacing your Nissan key fob battery is a straightforward DIY task. Follow these seven easy steps to get your key fob working again:
- Remove the Emergency Key: Flip your Nissan key fob over. Locate and press the release button or latch to remove the emergency mechanical key.
- Open the Key Fob Casing: Carefully pry open the key fob. There’s usually a small notch or seam running along the edge of the fob. Insert a small flathead screwdriver or a similar thin, flat tool into this notch and gently twist to separate the two halves of the key fob. Be careful not to apply excessive force to avoid damaging the casing.
- Remove the Old Battery: Once open, you’ll see the battery. Note the orientation of the battery (positive (+) side up or down) before removing it. You can use your fingertip or the small flathead screwdriver to gently pry out the old battery.
- Insert the New Battery: Take your new battery, ensuring it’s the correct battery size Nissan key fob requires (CR2025 or CR2032, as identified earlier). Install the new battery in the same orientation as the old one. Push it firmly into place until it’s secure.
- Reassemble the Key Fob: Align the two halves of the key fob casing and press them firmly together until they snap or click back into place. Ensure there are no gaps and the casing is securely closed.
- Replace the Emergency Key: Slide the emergency key back into its slot in the key fob until it clicks and is securely held in place.
- Test Your Key Fob: Press the buttons on your key fob to test if it’s working correctly. The doors should lock/unlock, and the panic button should function.
If you encounter any difficulty or are unsure about any step, consider seeking assistance from a professional service technician.
When Professional Nissan Key Fob Battery Replacement is Recommended
While replacing a Nissan key fob battery is generally easy, there are situations where professional help is advisable:
- Difficulty Opening the Key Fob: If you’re struggling to open the key fob casing or are worried about damaging it, a technician has specialized tools and experience.
- Key Fob Reprogramming: While battery replacement usually doesn’t require reprogramming, if your key fob still doesn’t work after a battery change, it might need reprogramming, especially for push-start models. Reprogramming is a complex process typically requiring dealership equipment.
- Convenience and Time Savings: If you prefer not to DIY or are short on time, scheduling a service appointment for a key fob battery replacement is a quick and convenient option.
Tom Wood Auto Group and other Nissan dealerships offer key fob battery replacement services. Technicians can quickly identify the correct battery size Nissan key fob uses and perform the replacement efficiently.
Frequently Asked Questions About Nissan Key Fob Batteries
Q: What kind of battery does a Nissan key fob use?
A: Most Nissan key fobs use a 3V lithium battery. The most common types are CR2025 and CR2032. Refer to your owner’s manual or open your key fob to confirm the specific battery size Nissan key fob for your vehicle requires.
Q: Can I replace my Nissan key fob battery myself?
A: Yes, in most cases, you can easily replace your Nissan key fob battery yourself by following the step-by-step guide provided above. It’s a simple process that takes just a few minutes.
Q: What happens if my Nissan key fob battery dies completely?
A: Even with a dead key fob battery, you can still access and start your Nissan using the emergency mechanical key hidden inside the fob and by using the key fob port or pressing the fob against the START/STOP button.
Q: Where can I purchase a replacement battery for my Nissan key fob?
A: You can purchase CR2025 or CR2032 batteries at most drugstores, supermarkets, hardware stores, auto parts stores, and online retailers.
Q: Do I need to reprogram my Nissan key fob after replacing the battery?
A: Generally, no. Replacing the battery in a Nissan key fob does not usually require reprogramming. However, if you experience issues after battery replacement, or if you are replacing the key fob itself, reprogramming might be necessary and should be done by a Nissan dealership or qualified technician.
Q: How long does a Nissan key fob battery typically last?
A: Nissan key fob battery life varies but typically lasts for 2-3 years, depending on usage frequency and environmental factors.
This comprehensive guide should equip you with the knowledge to confidently handle your Nissan key fob battery needs. Whether you choose to replace the battery yourself or seek professional assistance, understanding the battery size Nissan key fob requires is essential for keeping your vehicle accessible and functioning smoothly.
