Replace Battery In Infiniti Key Fob: DIY Tutorial On How To Open For Battery Change [Updated On- 2025]

To replace the battery in your INFINITI key fob, follow these steps:
1. Find the release tab on the back and press it to take out the metal car key.
2. Open the panel under the key compartment.
3. Remove the old battery and insert the new battery with the positive side facing down.

Carefully separate the two halves of the fob without causing damage. Once open, remove the old battery by sliding it out of its compartment. Pay attention to the battery orientation, as you’ll need to insert the new battery in the same way. Place the new CR2032 battery in the correct position, ensuring it fits snugly. After that, align the two halves of the key fob and press them together until they click securely.

Now that you have successfully replaced the battery in your Infiniti key fob, you can test the buttons to make sure they work properly. If they do not respond, double-check the battery orientation. In the next section, we will explore troubleshooting steps if your key fob still does not function after the battery change.

# Table of Contents

How Do I Identify Which Infiniti Key Fob Model I Have for Battery Replacement?

To identify which Infiniti key fob model you have for battery replacement, check the fob’s physical design, look for model numbers, and consult your vehicle owner’s manual.

To break down the identification process:

Physical Design: Infiniti key fobs come in various shapes and sizes. Most feature buttons for locking, unlocking, and starting your vehicle. Identify if your fob is a smart fob or a traditional remote.
Model Numbers: Inspect the back of your key fob for a label or engraving. This label often contains a model number or part number, which can be crucial for identifying the right battery type. Common model numbers for Infiniti key fobs include that may include key numbers like “KBRASTU15” or “Nissan 315 MHz”.
Owner’s Manual: Your vehicle’s owner’s manual typically includes information about the key fob model and its battery specifications. Look for the section that deals with keyless entry or remote control devices. This section will provide helpful details regarding the type of battery used.
Dealer or Online Resources: If you’re still unsure, contact an Infiniti dealer or check online resources and support forums. These resources can provide guidance and confirm the model of your key fob accurately.

Following these steps will ensure you have the correct information for replacing the battery in your Infiniti key fob.

What Essential Tools Are Needed to Open My Infiniti Key Fob?

To open your Infiniti key fob, you will need a few essential tools. These tools will help you gain access to the battery compartment for replacement or maintenance.

Flathead screwdriver or specialized tool
Phillips screwdriver (if applicable)
Replacement battery (typically CR2032 or similar)
Soft cloth (for cleaning)
Tweezers (optional, for handling small parts)

Each point listed above plays a critical role in the process of accessing your Infiniti key fob. Here is a detailed explanation of each tool needed.

Flathead screwdriver or specialized tool: A flathead screwdriver or a plastic opening tool is essential for prying open the fob. The tool allows you to carefully separate the two halves of the fob shell without damaging it. For instance, using a plastic tool minimizes the risk of scratching or harming the exterior finish.
Phillips screwdriver (if applicable): Some Infiniti key fobs may have screws securing the casing. A Phillips screwdriver is useful in these cases. If screws are present, removing them is a necessary step to access the internal components, including the battery.
Replacement battery: The most common battery used in Infiniti key fobs is a CR2032. Having a fresh battery ensures that the key fob will operate effectively after servicing. It is advisable to verify the specific battery model required for your fob by checking the owner’s manual or the old battery.
Soft cloth: A soft cloth can be used to clean the battery contacts and the fob casing during the process. Maintaining cleanliness prevents any dirt or debris from affecting the fob’s performance and helps ensure a good connection for the new battery.
Tweezers (optional): Tweezers may be helpful for handling small components inside the key fob. This tool allows you to remove or place parts precisely without the risk of losing them. However, this tool is optional and often not required for simpler fob designs.

Using these tools will facilitate the process of opening your Infiniti key fob and replacing the battery efficiently.

How Can I Safely Open My Infiniti Key Fob Without Damage?

To safely open your Infiniti key fob without causing damage, use the following methods: employ a soft cloth for grip, locate the seam, and gently pry open the fob with a suitable tool. These steps help prevent breaking the casing or damaging internal components.

Use a soft cloth: Wrapping the key fob in a soft cloth helps provide a better grip. This minimizes the risk of slipping while you work on opening it. The cloth also protects the fob’s surface from scratches.
Locate the seam: Identify the seam on the edge of the key fob. This is where the two halves of the fob connect. Knowing where the seam is allows you to focus on the most appropriate point for prying open the fob.
Gently pry open with a tool: Use a plastic prying tool or a flathead screwdriver. Insert it into the seam at a slight angle. Carefully work around the fob, applying gentle pressure to separate the halves without forcing them apart. Forcing the fob can crack the casing or dislodge internal components, leading to further issues.

By following these steps, you can effectively open your Infiniti key fob and access the battery without damage, maintaining its functionality and appearance.

What Precautionary Steps Should I Take to Avoid Damage When Opening?

To avoid damage when opening items, you should follow several precautionary steps.

Gather necessary tools
Read instructions carefully
Work in a clean, well-lit area
Use appropriate protective gear
Handle items gently
Disassemble with care
Keep small parts organized

These steps emphasize safety and minimize the risk of harm.

Gather Necessary Tools: You should gather necessary tools applicable to the item being opened. Common tools include screwdrivers, pliers, and prying tools. For instance, using a specialized screwdriver can prevent stripping screws during opening.
Read Instructions Carefully: You should read the manufacturer’s instructions or guidelines before proceeding. Instructions often contain specific warnings and steps tailored to the item. For example, opening a tech device without reading the guidelines can void warranties or damage internal components.
Work in a Clean, Well-Lit Area: Working in a clean and well-lit area is crucial for maintaining visibility and organization. Clutter can lead to misplacing parts or tools. Adequate lighting helps you see small components and avoid mistakes.
Use Appropriate Protective Gear: You should wear appropriate protective gear such as gloves and safety glasses. Gloves can protect your hands from sharp edges, and safety glasses prevent debris from injuring your eyes during the opening process.
Handle Items Gently: You should handle items gently to prevent unnecessary damage. Applying excessive force can break fragile components. For example, using a light touch can be the difference between successfully opening a case and damaging it.
Disassemble with Care: You should disassemble items with care, making sure to follow a systematic approach. Start from the indicated points and avoid forcing parts apart. This minimizes the risk of damaging clips or connectors.
Keep Small Parts Organized: You should keep small parts such as screws and hinges organized during disassembly. Using containers or magnetic trays can help you avoid losing them. This organization facilitates reassembly and reduces frustration later in the process.

What Type of Battery Do I Need for My Specific Infiniti Key Fob?

To replace the battery in your specific Infiniti key fob, you generally need a CR2032 battery.

Common battery type: CR2032
Alternative battery type: CR2025 (some models)
Battery specifications: 3 volts, lithium coin cell
Recommended replacement: Purchase from reliable retailers or authorized dealers

Understanding which battery your Infiniti key fob requires is crucial for optimal performance.

1. Common Battery Type: CR2032
The common battery type for Infiniti key fobs is CR2032. A CR2032 battery is a 3-volt lithium coin cell battery widely used in various electronic devices. It typically has a diameter of 20mm and a thickness of 3.2mm. For example, most later models of Infiniti vehicles, such as the Q50 and QX60, rely on this battery type for their key fobs.

2. Alternative Battery Type: CR2025
Some Infiniti models may use a CR2025 battery instead of the CR2032. A CR2025 battery is also a 3-volt lithium coin cell but is thinner, measuring 2.5mm in thickness. It’s crucial to check your specific fob model before purchasing a replacement. For instance, older models of the Infiniti G-series might be compatible with this battery.

3. Battery Specifications
Both CR2032 and CR2025 batteries are lithium coin cells with specific attributes. The key characteristics include a voltage rating of 3 volts and excellent thermal stability. They generally maintain their charge for extended periods. According to a study by Johnson et al. (2020), lithium batteries outlast alkaline batteries, making them a preferred choice for key fobs.

4. Recommended Replacement
When replacing your key fob battery, purchase from reputable retailers or authorized Infiniti dealers. This ensures you obtain genuine batteries with reliable performance. Generic brands may be cheaper but could lack the reliability of name-brand options. Investing in a quality battery can prevent future issues with your key fob.

By understanding the correct battery type and its specifications, you can ensure that your Infiniti key fob functions optimally for a long time.

How Do I Properly Install the New Battery in My Infiniti Key Fob?

To properly install the new battery in your Infiniti key fob, follow these steps: open the fob, replace the old battery with a new one, and securely close the fob.

Open the fob: Use a flathead screwdriver or a coin to gently pry apart the key fob’s two halves. Start at a small notch or seam, applying minimal force to avoid damaging the plastic casing. Be careful to maintain control of any internal components, such as the key blade or electronic circuit board.
Replace the old battery: Identify the battery type used in your Infiniti key fob. It is typically a CR2032 or CR2025 lithium coin battery. Pay attention to the orientation of the old battery, noting the positive (+) and negative (-) sides. Remove the old battery by gently pushing it out from its compartment. Place the new battery in the same orientation as the old one, ensuring the positive side faces the same direction.
Securely close the fob: Align the two halves of the key fob. Press them together until you hear or feel a click, indicating that they are properly sealed. Verify that there are no gaps between the two parts which could lead to malfunction or moisture entering the fob.

Following these steps will ensure your Infiniti key fob operates correctly with the new battery. Always handle components gently to prevent damaging sensitive electronics.

How Can I Test My Infiniti Key Fob to Ensure the New Battery Works Correctly?

To test your Infiniti key fob after replacing the battery, check its functionality by trying to lock and unlock your vehicle, listening for the sound of the locks, and observing the driver’s door lock indicator.

Locking and unlocking: Press the lock button on the key fob to see if the car locks and the lights flash. Then, press the unlock button to ensure that the doors unlock. A successful response indicates that the key fob is working properly.
Sound confirmation: Listen for the sound of the locks engaging or disengaging when pressing the buttons. If you hear these sounds, it confirms that the fob is communicating correctly with the vehicle.
Driver’s door lock indicator: Watch the driver’s door lock indicator. If this light responds each time you press a button, it indicates that the key fob functions correctly. If the light does not illuminate, the battery may not be making a proper connection or the key fob could be faulty.
Range testing: Stand a few feet away from your vehicle and try using the key fob. If the key fob operates from a distance of around 30 feet, it usually suggests that the battery is adequately charged and functional. A decrease in range can indicate a weak battery or potential fob malfunction.
Recheck battery installation: If the key fob does not work as expected, double-check the battery installation. Ensure that the positive and negative ends are aligned correctly and that the battery is securely fitted.

Following these steps will help confirm whether your new battery is functioning correctly in your Infiniti key fob. If issues persist, consider replacing the key fob or consulting a professional for further assistance.

What Troubleshooting Steps Should I Follow if My Key Fob Isn’t Working After Battery Change?

If your key fob isn’t working after a battery change, follow these troubleshooting steps to resolve the issue.

Check battery installation.
Verify battery type.
Inspect for physical damage.
Reprogram the key fob.
Test proximity to vehicle.
Check vehicle’s receiver.

These steps will help you identify potential issues and determine the best course of action.

1. Check Battery Installation:

Check battery installation to ensure proper alignment. The battery must fit correctly in its compartment. Improper installation may result in a lack of contact. This issue often arises from not aligning the positive and negative terminals properly. Review your vehicle’s manual for specific instructions.

2. Verify Battery Type:

Verify battery type to confirm it is the correct one for your key fob. Different key fobs require specific battery types, such as CR2032 or CR2025. Using the wrong type can lead to malfunction. Always cross-reference with the manual or the old battery’s specifications before making a change.

3. Inspect for Physical Damage:

Inspect for physical damage to the key fob. Cracks or water exposure can prevent it from working properly. If the key fob suffered a drop or has visible signs of wear, it may be beyond simple repair. In such cases, replacing the key fob may be necessary.

4. Reprogram the Key Fob:

Reprogram the key fob if it does not respond. Some key fobs need to be re-synced with the vehicle after a battery change. Instructions for reprogramming typically can be found in the vehicle’s manual or online resources. This step varies by manufacturer, so following specific procedures is essential.

5. Test Proximity to Vehicle:

Test proximity to the vehicle. Key fobs often use radio signals to communicate. If you are too far from the vehicle, it may appear unresponsive. Stand close to the car and try pressing the buttons again. This simple step can sometimes solve the issue.

6. Check Vehicle’s Receiver:

Check the vehicle’s receiver. If the key fob appears functional but still does not work, the problem may stem from the vehicle’s receiver. This issue typically requires professional diagnostic tools. Consult a mechanic if all other options fail.

In conclusion, systematically following these troubleshooting steps can often resolve issues with a malfunctioning key fob after a battery change.

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