If you own a Nissan vehicle, you know just how convenient it is to use a key fob for locking and unlocking your car, starting the engine, and even popping the trunk. But what happens when your key fob starts to lag or completely stops working? More often than not, it’s a sign that you need to replace the battery—a simple procedure that you can do by yourself at home for most models, including the Altima, Rogue, Sentra, Maxima, Murano, Pathfinder, Juke, Armada, Leaf, etc.
Today’s article will guide you through the process of replacing the battery in your Nissan key fob, ensuring that you’ll be back to using your handy device in no time.
When to replace your Nissan key fob battery
Before you go ahead and pry open your key fob, it’s important to identify the symptoms of a dying battery:
- Reduced range: If you find yourself having to get closer to your vehicle for the fob to work, it’s likely the battery is running low.
- Inconsistent operation: Sometimes it works; sometimes it doesn’t. This inconsistency often suggests a weakening battery.
- Dashboard warning: Certain Nissan models have a warning indicator on the dashboard that alerts you when your key battery is low.
- No operation: If your key fob stops working entirely, the battery could be completely dead.
Once you’ve determined that the battery is the culprit, it’s time for a replacement.
What you need
First, gather the necessary items:
- A new CR2025 battery (for most Nissan key fobs)
- A flat-head screwdriver or a key fob opening tool
Check your vehicle’s owner’s manual to confirm the correct battery type for your specific model.
Replacing the key fob in Nissan vehicles
If you have some time, and you want to do the replacement yourself at home, follow the steps exactly as they are. You don’t want to damage the key in any way, as that can cost lots of money later. For that reason, it’s always recommended to check your user’s manual to understand the specifications of the car key and the materials it’s made from. Some plastic covers are not resistant to any type of adhesive or other fluids. So, it’s crucial to have the right steps and the best quality material for any DIY task.
Step 1: Remove the hidden key
Most Nissan key fobs have a metal key inside that can be used if the fob battery dies. To remove this key, locate the small latch or button on the back or side of the key fob. Slide or push this to release the key and set it aside.
Step 2: Open the key fob
Once the metal key is out, you should see a small indentation along the seam where the two halves of the key fob come together. Using your flat-head screwdriver or the key fob opening tool, carefully insert it into the indentation and gently pry the two halves apart. Work your way around the fob until the pieces separate.
Pro Tip: Be gentle during this process to avoid damaging the plastic casing.
Step 3: Remove the old battery
With the key fob open, you should see the battery housed inside. Depending on your fob’s design, it may be held in by a securing clip. If so, gently release the battery from the clip. If the battery is not held in by a clip, you may need to gently pry it out from its housing using a small screwdriver.
Note: Take note of the battery’s orientation before removing it to ensure you insert the new one correctly.
Step 4: Install the new battery
Take your new CR2025 battery and place it into the key fob’s battery compartment. Ensure that it is correctly oriented (the positive side should usually face you). If there is a clip, make sure the battery is secure under the clip.
Step 5: Reassemble the key fob
Align the two halves of the key fob and press them back together. You should hear a snap or click indicating that the halves are securely fitted. Double-check all around the fob to make sure there are no gaps.
Step 6: Test the key fob
Now that your fob is back together, it’s crucial to test that it works before relying on it to operate your vehicle. Stand near your Nissan and try locking and unlocking the doors, starting the car, or whatever functions your fob supports. If all options work as expected, congratulations—you’ve successfully replaced your key fob battery!
Step 7: Dispose of the old battery
Don’t forget to properly dispose of the old battery by taking it to a battery recycling facility or a store that offers recycling services. Batteries contain harmful chemicals and should never be thrown in the regular trash.
Conclusion
Replacing the battery in your Nissan key fob is an easy and satisfying DIY task. It doesn’t require any special technical skills or tools beyond what you’d typically find in a junk drawer. By following the steps outlined above, you’ll not only save money on service charges but also become more familiar with your vehicle’s accessories and maintenance needs.
Remember that a well-functioning key fob is not just a convenience; it’s also a safety feature, enabling quick access to your vehicle and its security system. So, when the battery shows signs of needing a replacement, don’t delay—take a few minutes to swap it out, and you’ll be fully operational again in no time.
Lastly, always keep a spare CR2025 battery handy. This will save you from any inconvenient situations if your key fob battery dies unexpectedly. And with your newfound skills, replacing it will be a breeze.
