Replace Nissan Key Fob Batteries
If your Nissan keyfob doesn't respond your commands, its battery could be dead. Fortunately, G28CarKeys is a relatively easy repair that most people can do themselves.
To change the battery, you can purchase an alternative one from a hardware store or consult the owner's manual for the model you have.
Change the battery
The key fob in your Nissan model has a built in battery that could eventually lose its charge. Fortunately, replacing the battery of your key fob is an easy process that only takes about a minute to complete. First, you'll have to purchase the replacement CR2032 3V battery. It is a small coin-cell battery that is found in the majority of key fobs. It is available in most convenience stores. You will also need gloves (latex or non-latex) and a small screwdriver with a flat head to open the fob. Before you begin, make sure to refer to the owner's manual for specific steps and directions.
Once you have the brand new battery, take out the old one by turning the fob on its side and looking at the back side. You will see a small latch that you need to let go by pulling it down. This will remove the mechanical key from its original position within the fob.
Next, insert the new battery, and make sure that it is in the correct orientation. Once the battery is placed close the fob and press the two sides together. After completing this last step check your key fob by pressing the unlock button and watching what happens. You'll now be able to utilize the many features of your Nissan to determine if everything is working well. It's also a good idea to reprogram the key fob after replacing the battery to ensure that it's operating properly.
Replace the Transmitter
Your key fob is the "key" to the majority of your vehicle's vital functions. It can be a huge loss should it become damaged or lost. If you lose or damaged key fob, you'll find yourself without the ability to lock or start your car.
It's a good idea to keep an extra key fob in your possession in case of an emergency. Fortunately, the process of replacing your Nissan key fob is relatively easy. The procedure for replacing the Nissan key fob can be quite easy. You'll require a new flathead screwdriver, as well as the new battery to get rid of the old.
You'll also require a Panasonic CR2032 3V round battery (you can find them in multipacks, which cost less than $5 USD). The battery is in the back part of the key fob. You'll require a small flathead screwdriver in order to gently break the two halves. Use a small flathead screwdriver to lever the clip that is located at the top of the battery to pop it out, taking note of its position. Replace the battery, and then put it back together to form the key fob. Test it to make sure it is working.
Nissan Intelligent Keys eventually wear out and require to be changed just like any other electronic device. Guard your key fob from magnetic fields, water, and physical impacts. Don't drop it or put too much pressure on the device.
Replacing the Key
When your Nissan key fob is no longer working, you can't use it to unlock or start your car. This is a problem for those who have to travel to work in Detroit or to run errands near Dearborn, or go out for some night out close to Troy.
It's not that difficult to change the battery in your Nissan Smart Key. You can do it at home or at the dealership, and usually, you can find a set for $5 or less at a hardware store.
Flip the fob back over and push the small catch to the back. This will release the emergency mechanical keys inside. The emergency key won't allow you to start your vehicle but it will unlock the door.
Look for a small opening on the top of the casing. You can use a screwdriver or a plier to break apart the two pieces of the key fob. Once you've got access to the internal battery, take it out it and take note of its location. When you're ready to reassemble your key fob, place the new battery into its spot and snap the two sections of the case together. Then, insert the mechanical key and your Nissan smart key will work as usual.
Other Problems
A lot of modern cars come with key fobs that let the user to lock and start them without the need for keys for your car. To accomplish this, the key fob uses a small transmitter to communicate with the car's computer system.
If your Nissan key fob isn't working after you replace the battery it could be due to various reasons. For instance, the new battery might not be properly placed inside the key fob. Resetting the key fob is a different possibility. Luckily, this is an easy procedure that can be completed at home using a few simple tools.

You'll require, for instance a screwdriver that has flat-headed tips to remove the old battery from the key fob. Then, using an screwdriver, you can pry the back of the keyfob and insert the new batteries. It is also necessary to reprogramme your key fob in order for it to work with your vehicle.
Fortunately, most Nissan key fobs can be programmed by a user which means you can do it yourself. You can usually do this by inserting the key fob in the ignition twice within five seconds. If this doesn't work then you should take the key fob to an auto locksmith or dealer to get it programmed. The cost will differ based on the person you speak to and type of vehicle you own.