What Kind Of Battery Does A Nissan Altima Key Fob Use
This is a question that we get a lot here at the Nissan Altima key fob battery replacement center. To be honest, it is a bit of a trick question. The Nissan Altima key fob doesnt use a battery. It uses a capacitor.
A capacitor is a device that stores electrical energy in an electric field. It is similar to a battery in that it can store a charge and release it when needed. However, a capacitor can store and release energy much faster than a battery. This makes it ideal for use in devices that need to release a large amount of energy quickly, such as a key fob.
The downside of using a capacitor is that it can only store a limited amount of energy. This means that the key fob will eventually need to be recharged. The good news is that recharging a capacitor is much faster and easier than recharging a battery. All you need to do is place the key fob in the charger for a few minutes.
So, there you have it. The answer to the question, What kind of battery does a Nissan Altima key fob use? is that it uses a capacitor.
Is There Another Backup Solution For The Battery Change Process
The answer is yes there are two instant solutions. The first one is to use the backup key fob every car is equipped with two keys. If you have the second one, there is no need to change the bad battery in nissan key fob.
Another solution you can take into account is to utilize the emergency key, attached on the back side of the fob. This item will be a temporary solution in case you can not find a suitable battery.
Easy Steps To Change Your Nissan Key Fob Battery
Nissan has used a similar fob for several years now, but that doesn’t make it any more obvious how to change the battery. Below is a quick 6-step guide for exactly how to change your Nissan key fob battery.
1 year, 2 months ago
For several years now, Nissan drivers have used a very similar 4- or 5-button key fob called the Intelligent Key. There have been some subtle changes up to 2021, but the unit remains largely the same. Obviously, the key fob is very important to the everyday operation of the car. Without a working key fob, you might have trouble opening up or starting your car. You wont be able to lock it remotely, either.
In other words, its always a good idea to keep your key fob supplied with power. The good news on modern Nissan key fob battery units is that there is a flashing light on the casing. When the light stops flashing, it indicates that the battery needs changing. Its designed to act as a warning: if there isnt enough power to keep the light blinking, then there isnt enough power to communicate with your Nissan.
In todays blog, were looking at Nissan key fob battery replacement, how its done and how often you might have to do it. Well also include some additional tips about your key fob.
Process overview:
– Step 6: Replace the mechanical key
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How To Replace The Battery In Your Nissan Key Fob
For correct 2015 Nissan Altima key fob battery replacement, follow these steps closely:
- Set the key fob on a table with the buttons facing down.
- Remove the metal ignition key You should see a small slider tab. Push the tab toward the outer edge of the key fob to release the metal ignition key. Pull the bottom edge of the key fob downward, and the key should slide out. Make sure to set the emergency key aside someplace you wont lose it!
- Pry apart the fob With the key fob buttons facing up, look into the slot where the emergency key used to be. You should see two notches on the plastic bottom edge of the fob. Carefully insert your flathead screwdriver into one of the notches, and use it to pry apart the two halves of the fob. If its stubborn, try the other notch. Remove the top half of the fob.
- Replace the battery With the top half removed, you should see the battery. Carefully pry it out with your screwdriver, taking care not to scratch the components. Push in the new battery with the positive side facing up.
- Reassemble the fob Line up the front half and the rear cover of the key fob and gently push them together, making sure theyre flush at every edge. Push the metal ignition key back into the slot until it clicks securely in place.
What To Do If Your Battery Dies

Once your battery dies, you will obviously need to replace it however, you need your vehicle to get you to the store. Every Nissan key fob has a backup key inside that will allow you to get inside. You will notice a small release latch that allows you to pull out the backup key. Open your door and jump inside. If your Nissan doesn’t have a physical ignition hole, just place the key fob up against the start/stop button and start your vehicle.
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How Frequently Should You Change Battery In Nissan Key Fob
The rather good news is that your Nissan key fob battery should last for between three and four years before needing a change. If you are using the fob and its remote functions a lot, then the battery may go down faster overall, but it should still reach the lower estimate of the three to four years, saving some disaster.
You can take the fob to a dealer and have them do a Nissan key fob battery replacement, but this service typically costs money and isnt necessary. Replacing it yourself is relatively easy and the batteries are as cheap as $5 for a pack of 4.
Why Wont My Key Fob Work After I Changed The Battery
To open the key fob and inspect for damaged contacts or misaligned buttons, you may use basic tools. Replace the automobile key fob if that doesnt work. Another reason your vehicle remote may not function after replacing the battery is the lock. Check for these symptoms to see whether the lock or vehicle door has become faulty.
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We hope this guide helps simplify your 2015 Nissan Altima key fob battery replacement! Check out more car-care guides and car loan tips for Philadelphia car-buyers from Rolls Auto Sales, where were proud to supply quality used vehicles to the South Jersey area. Stop by to see our used vehicle specials, and then schedule a test drive today!
What Size Battery Does A Nissan Key Fob Take
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Nowadays, all new Nissan vehicles come with a remote keyless system. You dont need to physically use a key to start your engine or unlock your door with this system. Having a Smart Key as Nissan uses is nice, but what do you do if it runs out of battery power? With so many micro-battery sizes on the market, knowing which size to purchase for your Nissan intelligent key is challenging. Luckily, weve researched the batteries and replacement process to provide you with an answer here.
All Nissan Smart Keys use the same battery size: CR2032 3-Volt. To change the battery in your key fob, follow these steps:
Thats an overview of the battery size for Nissan Smart Keys and how to replace them. But, there is more that you need to know about this process. In the remainder of this post, we will discuss how to change the battery in more detail. Additionally, well discuss how long the batteries should last, programming the Nissan key fob, and whether or not they qualify for a warranty.
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Why Does My Key Fob Not Work After Replacing Battery
To open the key fob and inspect for damaged contacts or misaligned buttons, you may use basic tools. Replace the automobile key fob if that doesnt work. Another reason your vehicle remote may not function after replacing the battery is the lock. Check for these symptoms to see whether the lock or vehicle door has become faulty.
Get Assistance From Jeffrey Nissan
Need more assistance with your Nissan key fob? Visit us at Jeffrey Nissan to learn more. We can help you replace the battery in your key fob, answer questions about our vehicles, help you compare Nissan models to find the right one for you, and more! Make the trip to Jeffrey Nissan in Roseville today or contact us in the meantime with any questions about Nissan key fobs.
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Removing The Valet Key
The valet key is the backup key explained earlier. You need the backup key to get yourself out of the emergency. Its also called the valet key because you can easily pull it out and leave it with a valet to park your car. So, you dont have to hand over your cars original key next time you visit a hotel.
Whether youre trying to figure out your Nissan key fob battery type or replace it instantly, you need to first remove the valet key. Its standing in the batterys way. Then, go back to the process of removing the backup key detailed above.
Do I Need To Reprogram The Key Fob After Changing The Battery

Typically, you do not need to reprogram the key fob after changing the battery. However, if youve replaced not just the batteries but also some of the internal wiring and electronics, you may need to reprogram it by pairing it with your vehicle once again.
The usual sequence for reprogramming your car battery is as follows:
- Put the key into the ignition
- Turn the key into the ON position and then turn it back to the LOCK position.
- Do this several times until you hear a chiming sound
- Press the lock and unlock position on your key fob to reprogram it. This should ensure the correct functions are saved and that the vehicle will respond the next time you use it.
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How Long Does Nissan Key Fob Battery Last
The battery is a primary battery, not rechargeable. Stored under normal room temperatures, the battery has a shelf life of 10years, while being used in Nissan key fob, the battery can last from 3years and above.
The CR2032 battery has a wide operating temperature from -20°C to as high as +60°C. The battery usually weighs 3.0 grams.
Can You Program A Nissan Key Fob Yourself
You may install it yourself if youve misplaced your keyless entry remote or just wish to add keyless entry to your Nissan. The dealer will charge you several hundred dollars for this, but you just need the key fob remotes and around ten minutes of spare time. To program your Nissans keyless entry, follow these instructions.
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What Is The Emergency Ignition Key
Every keyless entry system comes with an emergency metal key stored inside the key fob. This ensures that youll never be stranded far from Allentown if your key fob battery dies unexpectedly! Your cars door handle should have a small keyhole on the underside to insert the key and unlock the car manually.
Before you can perform 2015 Nissan Altima key fob battery replacement, youll first need to remove the emergency key from the fob. Read the steps below for details!
How Often Should I Replace The Battery
On average, a key fob battery can stay up for three years as the device consumes a minimal amount of energy. No matter how fast it is degraded, the key fob can still sustain for more than two years. In the condition that it is less responsive, it is the signal that the battery is calling for a replacement.
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S To Change Nissan Key Fob Battery
As indicated earlier, the key fob plays an important role in the operation of your Nissan car. The key fob enables you to open the doors and the trunk remotely.
You can press the button on the door handle to open the door and you can just press the start button when the key fob is near.
All these operations mean that the battery in the Nissan key fob is being used and will die since the battery has a set lifetime. After it stops working, here are the simple steps to replacing the battery.
Step 1: Remove the spare key.
The spare key at the back of the key fob needs to be removed to open the key fob. There is a small latch at the back that needs to be pulled to release the spare key.
Step 2: Open the key fob using a flat screwdriver
At the top of the key fob, you will identify two small openings. Input the correct sized flat screwdriver and turn it clockwise slowly. Open each one of them and the key fob will come apart in two halves.
Step 3: Remove the old battery noting its orientation.
Use the flat screwdriver to pop the battery out. The orientation is necessary to note as you need to replace the new battery in the same orientation. This will ensure that you do not interchange the polarity of the battery.
Step 4: Replace the battery.
Replace the new battery into the slot. Ensure you maintain the battery orientation as with the old battery.
Press the battery till you hear a clicking sound. This signifies the battery is in place and properly locked.
When Do You Experience A Drop In Signal Strength
Key fobs are usually designed to allow use/operation over a long-range.
This could extend up to about 40 feet in most cases.
When your key fob is in good working condition, you can easily start your engine, unlock & lock your car while a few feet away from it.
However, when the battery begins to wear out or lose its power, this results in a drop in the signal strength.
During this time, you will notice that the key fob wont activate or process your desired command until you move very close to your vehicle.
This indicates that the fobs battery is running weak and needs to be replaced immediately to continue enjoying a top performance.
You may click on the unlock buttons severally before you can lock or gain access to the doors
Usually, a key fob in good condition should lock and unlock your vehicles doors instantly when you click on the command button once.
If you realize that your command is activated only after multiple clicks on the button or after several attempts.
This is a sign informing you about the current state of the battery. You will have to get the bad/failing battery removed and replaced with a new unit.
Inconsistency in operation & performance
One moment, the initiated command activates or clicks correctly or as expected. On the next attempt, especially with a similar function and within a similar range, you may experience a change in performance.
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How To Change Battery In Nissan Key Fob
Its all very advanced and technical , but like just about any other gadget out there, it has a limited battery lifespan. Its important then to know how to change the Nissan key fob battery. The first time you do it, it might feel a little tricky, but its actually much easier than it seems and youll undoubtedly get pretty deft at it over time.
Below are the main steps for Nissan key fob battery replacement:
Step 1: Release the mechanical key.
Turn the Nissan key fob over in your hand and look for the little release catch on the back. Pull that down and it will release the stored mechanical key from its position in the fob. You dont need this key as part of the battery replacement process, but it does need to be out of the way.
Step 2: Pry open the fob into two parts.
The top end of the key fob youll see two small slits. These are ideal to slot a small flat-head screwdriver into before turning it clockwise to safely and evenly open the casing. You should be able to then pull the fob into two halves.
Step 3: Remove the old battery.
The battery is a round Panasonic 3-volt CR 2032 battery. You will see its metal disc sitting in one half of the key fob. Use a small flat-head screwdriver to pop the battery out safely. There should be a small gap under the battery perfect for such a move.
Step 4: Install the new battery.
Step 5: Replace key fob housing.
How To Open Nissan Key Fob Step By Step Guide

To get started with How To Open Nissan Key Fob, follow the below steps
- Step#1: Remove the metal key if your keyfob comes with one
- Step#2: Locate the open notch between the front and back portions of the key fob on the top of the fob. In the gap, use a flathead screwdriver. Separate the front and rear fob sections utilizing the screwdriver. A plastic wedge can also get used to separate the key housing.
- Step#3: Remove the old CR2025 battery and replace it with the new one. Make a mental note of how the batteries are oriented. The battery should not get rotated. Make sure the batterys negative side is towards you.
- Step#4: After installing the new battery, Squeeze the front and rear fob halves together until everything snaps back into place. In the end, place the emergency key in its designated position.
Note: Your Nissan key fob most likely requires a CR2025 battery. See your owners handbook or contact the service department to be sure. This way, youll know if you have the correct battery for your Nissan model rather than assuming your fob is permanently dead and that you need to replace a Nissan Maxima key fob.
Tips After Nissan Key Fob Battery Replacement
The recommendations may even help you if the battery replacement didnt work for you
Fact: When you replace the battery in your key fob, you must do it fast. The key fobs memory might get lost if the battery gets kept out for more than 30 seconds.
How To Program Nissan Key Fob?
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