For owners of the sleek and modern 2021 Nissan Sentra, the key fob is an indispensable part of the vehicle experience, offering convenient keyless entry and ignition. Understanding the components of your key fob, especially the battery, is crucial for ensuring uninterrupted access and functionality. One common question that arises is: what is the 2021 Nissan Sentra Key Fob Battery Size? This article will provide you with all the essential information regarding your 2021 Nissan Sentra key fob battery, along with other important details about your smart key.
Decoding Your 2021 Nissan Sentra Key Fob Battery
The battery powering your 2021 Nissan Sentra key fob is a CR2032 battery. This is a widely used 3V lithium coin cell battery known for its reliability and longevity in small electronic devices. The CR2032 battery is compact yet powerful, making it the perfect energy source for your key fob’s remote functions, including:
- Lock/Unlock: Secure and access your vehicle with a simple button press.
- Trunk Release: Conveniently open the trunk without manually using your key.
- Panic Alarm: Activate the car alarm in emergency situations.
Alt text: Front and back view of a 2021 Nissan Sentra key fob showcasing button layout and design, emphasizing the need for CR2032 battery for operation.
Why Knowing Your Key Fob Battery Size Matters
Knowing the correct battery size for your 2021 Nissan Sentra key fob is important for several reasons:
- Proper Replacement: When your key fob battery starts to weaken, indicated by reduced range or inconsistent operation, you’ll need to replace it. Using the correct CR2032 battery ensures optimal performance and prevents damage to your key fob.
- Avoiding Inconvenience: A dead key fob battery can be a major inconvenience, potentially leaving you locked out of your car or unable to start it remotely. Being prepared with the right replacement battery size helps avoid these situations.
- Cost-Effectiveness: Replacing the battery yourself is a cost-effective alternative to purchasing a new key fob or visiting a dealership for a battery replacement. CR2032 batteries are readily available and affordable.
More About Your 2021 Nissan Sentra Smart Key Fob
Beyond the battery size, here are some additional key features and information about your 2021 Nissan Sentra key fob:
- Smart Keyless Entry: Your key fob enables a seamless keyless entry experience. As long as the fob is within proximity to your vehicle, you can unlock the doors and start the engine without physically using a key.
- Push-to-Start Ignition: The 2021 Sentra utilizes a push-to-start ignition system, which is fully integrated with your smart key fob. This modern feature adds to the convenience and sophistication of your vehicle.
- Emergency Insert Key: In case of a dead battery in your key fob or vehicle, there is an emergency mechanical key insert included within your smart fob. This key can be used to manually unlock the driver’s side door. It’s important to note that this emergency key needs to be cut by a locksmith or dealership to match your vehicle’s ignition.
- Professional Programming Required: If you need to replace the entire key fob, keep in mind that it requires professional programming to synchronize with your 2021 Nissan Sentra’s immobilizer system. This programming can be done at a Nissan dealership or by a qualified automotive locksmith. Onboard programming is not available for this model.
Alt text: Close-up of the emergency insert key for a Nissan key fob, highlighting its role as a backup access method when the battery is depleted or in electronic failure scenarios.
Compatibility and Part Numbers
The 2021 Nissan Sentra key fob, using a CR2032 battery, is also compatible with other Nissan models within similar year ranges, including:
- 2019-2021 Nissan Altima
- 2020-2022 Nissan Versa
For reference, here are the part numbers associated with your 2021 Nissan Sentra key fob:
- Nissan Part Number: 285E3-6CA1A, 285E36CA1A
- FCC ID: KR5TXN1
- Continental Number: S180144801
- Emergency insert key: H0564-ZN50A, H0564-JA00A, H0564-1FA0B, H0564-EG010
Maintaining Your 2021 Nissan Sentra Key Fob
To ensure your 2021 Nissan Sentra key fob remains reliable, consider these maintenance tips:
- Regular Battery Checks: Be mindful of the range and responsiveness of your key fob. If you notice a decline, it might be time to replace the CR2032 battery.
- Protect from Moisture and Impact: Avoid exposing your key fob to excessive moisture or dropping it, as these can damage the internal components.
- Professional Programming for Replacements: If you lose or damage your key fob and need a replacement, always seek professional programming services from a Nissan dealership or a reputable automotive locksmith to guarantee proper functionality and security.
Conclusion
Understanding your 2021 Nissan Sentra key fob battery size (CR2032) and other key features empowers you to maintain your vehicle’s convenient access system effectively. By knowing the battery type, compatibility, and maintenance tips, you can ensure your key fob remains a reliable part of your Nissan Sentra ownership experience for years to come. Remember to replace your CR2032 battery when needed and seek professional help for any key fob programming or replacement requirements.
