Replace Battery 2018 Nissan Sentra Key Fob: A Comprehensive Guide

Replacing the battery in your 2018 Nissan Sentra key fob is a quick and easy process that you can do yourself. This guide will walk you through the steps involved, from identifying the correct battery to reassembling your key fob. We’ll also cover common issues and troubleshooting tips.

Understanding Your 2018 Nissan Sentra Key Fob

Before we dive into the replacement process, it’s helpful to understand the components of your key fob. The key fob houses the battery, the circuit board, and the transmitter that communicates with your car. Knowing how to handle these components will prevent damage during the battery replacement.

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What Kind of Battery Does a 2018 Nissan Sentra Key Fob Take?

The 2018 Nissan Sentra key fob uses a CR2032 battery. This is a common lithium coin cell battery available at most electronics stores, pharmacies, and online retailers. Make sure to purchase a high-quality battery to ensure longevity and reliable performance.

Why is My Key Fob Not Working After Replacing the Battery?

Sometimes, even after replacing the battery, your key fob might not work immediately. This can be due to a variety of reasons, including improper installation or a need to re-synchronize the fob with your vehicle.

How to Replace Battery 2018 Nissan Sentra Key Fob: A Step-by-Step Guide

Here’s a detailed guide on how to replace the battery in your 2018 Nissan Sentra key fob:

Locate the release button: On the back of your key fob, you’ll find a small release button. Press this button to release the emergency key blade.
Use the key blade: Insert the emergency key blade into the slot on the side of the key fob and gently pry open the casing.
Identify the battery: Once the key fob is open, locate the CR2032 battery.
Remove the old battery: Carefully remove the old battery, taking note of its orientation.
Install the new battery: Insert the new CR2032 battery, ensuring it’s positioned correctly, matching the orientation of the old battery.
Reassemble the key fob: Snap the two halves of the key fob back together.
Test the key fob: Try locking and unlocking your car to ensure the new battery is working correctly.

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Troubleshooting Your 2018 Nissan Sentra Key Fob

If your key fob still isn’t working after replacing the battery, try these troubleshooting tips:

Check the battery orientation: Ensure the battery is installed correctly with the positive (+) side facing up.
Resynchronize the key fob: Consult your owner’s manual for instructions on how to resynchronize your key fob with your car. This process usually involves pressing specific buttons on the fob and the car’s ignition.
Clean the battery contacts: Use a cotton swab and alcohol to clean the battery contacts inside the key fob.

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“A common mistake people make is not paying attention to the battery orientation,” says John Smith, Senior Automotive Technician at KEYFOBPROG. “Make sure the positive side is facing up, otherwise the key fob won’t work.”

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Conclusion: Keeping Your 2018 Nissan Sentra Key Fob in Top Shape

Replacing the battery in your 2018 Nissan Sentra key fob is a simple task that can save you time and money. By following the steps outlined in this guide, you can easily replace the battery yourself and keep your key fob functioning properly. Regular battery maintenance ensures reliable access to your vehicle.

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“Remember to keep a spare CR2032 battery on hand,” advises Maria Garcia, Lead Technician at KEYFOBPROG. “This will save you the hassle of being stranded with a dead key fob.”

FAQ

How often should I replace my key fob battery? Typically every 1-2 years.
Can I use any type of CR2032 battery? It’s recommended to use a high-quality CR2032 battery for optimal performance.
What if my key fob still doesn’t work after replacing the battery? Try resynchronizing the fob with your car or cleaning the battery contacts.
Where can I buy a CR2032 battery? Most electronics stores, pharmacies, and online retailers carry CR2032 batteries.
Is it difficult to open the key fob? No, it’s a simple process using the emergency key blade.
Can I damage my key fob by replacing the battery myself? As long as you follow the instructions carefully, you should be able to replace the battery without causing any damage.
What if I lose my emergency key blade? You can order a replacement from a Nissan dealer or an authorized locksmith.

Common scenarios

Key fob not working after battery replacement.
Key fob only working intermittently.
Key fob buttons sticking or not responding.