How To Change Battery On Infiniti Key

Changing the battery in your Infiniti key fob is a simple task that can save you time and the hassle of being stranded with a non-functional key. This article provides a step-by-step guide on how to replace your Infiniti key battery, ensuring you can continue to access and start your vehicle without issue.
Why Changing Your Infiniti Key Battery Matters
A dead or dying key fob battery can cause a range of issues, from not being able to remotely unlock your doors to being unable to start your vehicle. Here's why proactively changing your Infiniti key battery is essential:
- Convenience: A functioning key fob allows you to remotely unlock doors, open the trunk, and even start the engine in some models, saving you time and effort.
- Security: A weak battery can lead to inconsistent or unreliable signals, potentially compromising your vehicle's security. A strong signal ensures your car only responds to your key fob.
- Preventative Maintenance: Replacing the battery before it completely dies avoids being locked out or unable to start your car in an inconvenient location. Imagine being stuck in a parking lot late at night!
- Cost Savings: Replacing the battery yourself is significantly cheaper than taking your car to a dealership or locksmith. The cost of a battery is minimal compared to professional service fees.
How to Choose the Right Battery for Your Infiniti Key Fob
Selecting the correct replacement battery is crucial for your Infiniti key fob to function correctly. Using the wrong battery can damage the fob or prevent it from working altogether. Here's how to choose the right one:
1. Identify Your Key Fob Type
Infiniti key fobs come in various designs, and the battery type can vary depending on the model and year of your vehicle. Common Infiniti key fob types include:
- Standard Key Fob: These are the most common type, typically rectangular with buttons for locking, unlocking, and the trunk.
- Intelligent Key Fob: These fobs allow for keyless entry and push-button start. They often have a more rounded or oval shape.
2. Locate the Battery Information
The battery type is often indicated inside the key fob itself. Once you open the fob (instructions on how to do this are below), look for a small, button-shaped battery. The battery type (e.g., CR2032, CR2025) will be printed directly on the battery itself. You can also consult your Infiniti owner's manual for the specific battery type required for your key fob.
3. Common Battery Types
While the specific battery can vary, some common types used in Infiniti key fobs include:
- CR2032: This is a very common 3V lithium coin cell battery.
- CR2025: Similar to the CR2032, but slightly thinner.
- CR2016: Another 3V lithium coin cell battery, even thinner than the CR2025.
Always double-check the battery type before purchasing a replacement! Using the wrong type, even if it fits, can cause malfunction or damage.
4. Purchase a Quality Battery
When purchasing a replacement battery, opt for a reputable brand known for its quality and longevity. Avoid generic or unknown brands, as they may have a shorter lifespan or inconsistent performance. Popular brands include:
- Energizer
- Duracell
- Panasonic
- Sony
You can find these batteries at most drugstores, supermarkets, hardware stores, and online retailers. Consider buying a multi-pack to have spares on hand.
Step-by-Step Guide: Changing Your Infiniti Key Battery
Follow these detailed steps to safely and effectively replace the battery in your Infiniti key fob:
1. Gather Your Tools
You will need the following tools:
- Replacement Battery: Make sure you have the correct type, as identified above.
- Small Flathead Screwdriver or Pry Tool: A small screwdriver or a specialized plastic pry tool (often used for electronics repair) will be needed to open the key fob. Avoid using sharp metal objects that could scratch or damage the fob.
- Soft Cloth: To protect the key fob from scratches during the process.
2. Prepare Your Work Area
Choose a clean, well-lit workspace. Lay down the soft cloth to protect the key fob from scratches.
3. Open the Key Fob
The method for opening the key fob varies slightly depending on the model. Here are a few common methods:
- Method 1: Emergency Key Removal
Many Infiniti key fobs have a small emergency key that can be removed. Locate the release button or latch (usually on the back or side of the fob) and slide or press it to release the key. Once the key is removed, you'll often find a slot or opening where the key was. Insert the flathead screwdriver or pry tool into this slot and gently twist to separate the two halves of the fob.
- Method 2: Split Seam
Some fobs have a visible seam running around the edge. Carefully insert the flathead screwdriver or pry tool into this seam and gently work your way around the fob, prying it open. Be careful not to apply too much force, as you could crack the plastic.
- Method 3: Hidden Screw(s)
A few Infiniti fobs may have a small screw or two holding them together. Examine the fob carefully for any screws, often hidden under a plastic cover or sticker. Remove the screw(s) before attempting to pry the fob open.
Take your time and be gentle. Forcing the fob open can damage the plastic or internal components. If you're unsure, consult your owner's manual or search online for a video specific to your Infiniti model.
4. Remove the Old Battery
Once the key fob is open, you'll see the battery. Note the orientation of the battery (positive (+) side up or down). Use the flathead screwdriver or pry tool to carefully lift the battery out of its compartment. Be careful not to short-circuit the battery by touching the positive and negative terminals simultaneously with a metal object.
5. Insert the New Battery
Insert the new battery into the compartment, ensuring the correct orientation (positive (+) side up or down, matching the orientation of the old battery). Make sure the battery is securely seated in the compartment.
6. Reassemble the Key Fob
Carefully snap the two halves of the key fob back together. Make sure all the edges are aligned and that the fob is securely closed. If you removed any screws, replace them now.
7. Test the Key Fob
Test the key fob by pressing the buttons to lock and unlock your car. If it works, congratulations! You have successfully replaced the battery. If it doesn't work, double-check that the battery is installed correctly and that you have the correct battery type. If it still doesn't work, there may be another issue with the key fob that requires professional attention.
Real-World Owner Experiences
Many Infiniti owners have successfully changed their key fob batteries themselves, saving time and money. Here are some common experiences:
- Positive Experiences: Owners often report that the process is straightforward and takes only a few minutes. They appreciate the cost savings compared to going to a dealership.
- Challenges: Some owners have difficulty opening the key fob, especially older models. Taking your time and using the right tools is crucial.
- Battery Life: Battery life can vary depending on usage and environmental factors. It's a good idea to replace the battery every 1-2 years as preventative maintenance.
One owner shared, "I was quoted $80 by the dealership to replace my key fob battery. I bought a battery for $5 and did it myself in five minutes! It was so easy."
Frequently Asked Questions (FAQs)
- How often should I replace my Infiniti key fob battery?
- It's generally recommended to replace your key fob battery every 1-2 years, or sooner if you notice decreased range or inconsistent performance.
- What if my key fob still doesn't work after replacing the battery?
- Double-check that you installed the battery correctly and that you are using the correct battery type. If it still doesn't work, the key fob may need to be reprogrammed by a dealership or locksmith.
- Can I use a different brand of battery than the one originally in the key fob?
- Yes, as long as the battery type (e.g., CR2032) is the same. Opt for a reputable brand for best performance and longevity.
- Will replacing the battery erase my key fob's programming?
- No, replacing the battery should not erase your key fob's programming. However, in rare cases, it may be necessary to re-sync the key fob with your vehicle, which can usually be done by following the instructions in your owner's manual.
- Where can I find a replacement battery?
- Replacement batteries can be found at most drugstores, supermarkets, hardware stores, and online retailers.
By following these steps and tips, you can confidently change the battery in your Infiniti key fob and keep your vehicle secure and accessible.



