Replacing the battery in your 2018 Nissan Sentra key fob is a quick and easy process that can save you time and money. This guide will provide you with step-by-step instructions, helpful tips, and answers to frequently asked questions, so you can get back on the road with confidence.
Identifying a Dying Key Fob Battery
Several signs indicate your 2018 Nissan Sentra key fob battery is failing. These include decreased range, requiring you to be closer to the car to lock or unlock it; intermittent functionality, where the key fob works sometimes but not others; and the key fob’s LED light being dim or not illuminating at all. Ignoring these signs can lead to being locked out of your vehicle, so addressing the issue promptly is important.
Gathering Your Tools and Materials
Before starting the replacement process, gather the following: a new CR2032 battery (easily found at most stores), a small flat-head screwdriver, and optionally, a plastic pry tool to prevent scratching your key fob.
Step-by-Step Key Fob Battery Replacement
-
Locate the release button: On the back of your 2018 Nissan Sentra key fob, find the small release button.
-
Release the mechanical key: Press the release button and slide the mechanical key out of the fob.
-
Open the key fob: Use the flat-head screwdriver or plastic pry tool to carefully pry open the key fob casing along the seam. Be gentle to avoid damaging the plastic.
-
Remove the old battery: Once the fob is open, locate the CR2032 battery. Carefully pry it out using your screwdriver or pry tool.
-
Install the new battery: Insert the new CR2032 battery, ensuring the positive (+) side faces up.
-
Reassemble the key fob: Align the two halves of the key fob casing and press them together until they snap shut.
-
Reinsert the mechanical key: Slide the mechanical key back into its slot on the key fob.
-
Test the key fob: Check the functionality of your key fob by locking and unlocking your car and ensuring the LED light illuminates brightly.
Common Issues and Troubleshooting
If your key fob still isn’t working after replacing the battery, try these troubleshooting steps. First, ensure the new battery is properly installed and the positive side is facing up. If it is, try re-synchronizing your key fob to your car. This process typically involves inserting the key into the ignition and turning it on and off a few times. Consult your owner’s manual for the specific procedure for your 2018 Nissan Sentra.
Preventing Future Key Fob Issues
To prolong the life of your key fob battery, avoid exposing it to extreme temperatures or moisture. Also, try not to drop your key fob frequently, as this can damage the internal components.
Expert Advice from John Smith, Automotive Electronics Specialist
“Many people overlook the simple task of changing their key fob battery until it’s too late,” says John Smith, an automotive electronics specialist with over 20 years of experience. “Taking a few minutes to replace the battery can prevent the inconvenience of being locked out of your car.”
Key Fob Battery Replacement Cost
Replacing your key fob battery yourself is extremely cost-effective. A CR2032 battery usually costs just a few dollars. This is a significant saving compared to having it replaced at a dealership or auto shop, which can cost considerably more.
Reassembling 2018 Nissan Sentra Key Fob
Conclusion
Replacing the 2018 Nissan Sentra key fob battery is a simple DIY task that anyone can handle. By following this guide, you can save money and avoid the hassle of a dead key fob. So, grab a new battery and get your key fob back in working order today!
FAQ
-
How long does a 2018 Nissan Sentra key fob battery last? Typically, the battery lasts between 2-3 years.
-
What type of battery does the 2018 Nissan Sentra key fob use? It uses a CR2032 battery.
-
Can I replace the battery myself? Yes, it’s a simple DIY process.
-
What if my key fob still doesn’t work after replacing the battery? Try re-synchronizing the key fob to your car or check the battery orientation.
-
Where can I buy a CR2032 battery? Most stores that sell batteries, like pharmacies, supermarkets, and electronics stores, carry them.
-
How do I know if my key fob battery is dying? Signs include decreased range, intermittent functionality, and a dim or non-illuminating LED light.
-
Is it expensive to have the key fob battery replaced professionally? It can be more expensive than doing it yourself, as dealerships and auto shops charge for labor.
