How to Change Infiniti Key Battery? – A Step-By-Step Guide

Are you looking for a quick guide to ensure you do the critical battery replacement correctly? Well, you are at the right place where you will find all the requested content. This article is solely steadfast to changing Infiniti’s essential battery. Once you follow a few initial steps, further the process is automatic.

In this guide, we will be looking deeper into the steps involved and a few common questions. In the end, you will be able to replace the battery without stumbling upon any issues. Let us look at the stages we need to follow for the procedure.

Cleaning And Drying The Key Battery

Handling the car keys with care should be the priority; hence, you need to check a few things beforehand. Begin the procedure by cleaning the critical fob surface thoroughly. Take a soft cloth that does not damage the surface.

Cleaning And Drying The Key Battery

After completing the cleaning process, dry the Infiniti’s key fob until you feel good to go. Since we do not want water to get inside the fob covering, it would cause impairment. So, you will be making sure no liquid or fluid substance would get inside.

Removing The Key From The Fob

Now that we have everything ideally moving, it is good to go. We need to remove the covering. For that, you might find a side button that would automatically pull it out. Or you might need a screwdriver or something a bit sharp and use it to remove the key’s blade.

Opening The Fob

In this part, you will be able to check and identify the type of battery inserted. You may use a sharp coin or a solid fingernail to pry upon the edges slowly. This way, it will help safely take out the cover and avoid damaging the battery. Note down the battery type and check for any leakages.

Take it out gradually and keep it aside. Once the battery is out, identify the positive and negative positions. Although, most fobs do have this labeling while some might not.

Removing The Circuit Board

Now that we have removed the cover of the battery fob, it will be easier to locate the circuit board. However, this is a susceptible part, and you should slow down your pace here and handle it carefully. Damaging any part of the circuit might lead to a completely dead battery fob. So, be gentle. Use the edges to remove it and keep it aside for future assembling.

Replacing The Battery

Ensure everything is in the exact place so we can proceed further. Now it is time for the battery replacement. Put the new battery in the proper position. We will be making sure it is appropriately aligned.

Replacing The Battery

If you place the vehicle’s essential key battery oppositely, the key fob will not work. Thus, the positive side will be upwards while the opposing side will go downwards. The standard car key battery works this way, but you must check twice if you are using the intelligent key.

Putting It All Back Together

The final step is to redirect and put everything back in place. Snap the components in the same order that you removed them. First, you attach the battery, then the circuit board but with the same care. Next, gently snap back the fob shell covering and ensure it fits well.

Finally, please allow up to 5 seconds and press the lock or unlock to give a quick check. You will see a red light flashing that says the battery is working perfectly. However, you will need to reset it once and repeat the above step in some cases.

Frequently Asked Questions (FAQs)

1. What kind of battery goes in the Infiniti key fob?

The kind of battery that your car key fob takes usually depends on the model you use. In general, the standard one comes with a CR2025 key fob battery slot. However, if you use the intelligent key fob, you might need to look for CR2032 instead of the usual one.

2. How long does a low battery key fob last?

As above answered, the answer to this question depends on where you store your key fob. The key fob will last around three to four years for a typical key with a low battery. However, if we talk about the intelligent key low battery, it might last 1.5 years longer than the standard key fob.

3. Why Does My Key Battery Not Work after Replacement?

Several reasons why the essential battery is still not working after replacement. Make sure that you reset after replacing the battery of your key fob. If resetting the key fob does not resolve the problem, check if your car detects the key. Try switching the battery off and then back on. If the problem persists, then check for broken buttons.


Replacing a car’s essential battery is not a big deal. Some people contact professionals or take the key to the car’s showroom; however, it is more straightforward. Everything it takes is a few minutes of your time and a bit of focus.

These simple steps will save you cost and will help in the future. Moreover, the FAQs section will answer any confusion you may encounter. Thus, now you can easily lock and unlock your vehicle with just a single click like before.