Replace Nissan Key Fob Batteries
If your Nissan keyfob does not respond to your commands, the battery could be dead. This is a straightforward fix that most people can handle themselves.
You can purchase an alternative from a hardware store or from your owner's manual for the specific model you have and you'll need to follow these instructions to change the battery.
Change the battery
The key fob on your Nissan model is equipped with a built-in battery that will eventually lose its charge. Fortunately, replacing the battery of your key fob is a simple process that only takes about a minute to complete. You'll first need to purchase the CR2032 battery. www.g28carkeys.co.uk is a small coin cell battery that is often found in key fobs and it can be found at all convenience stores. To open the key fob, you will also require an appropriate pair (latex or not) of gloves and an incredibly small screwdriver. Read the owner's manual for specific instructions and steps before starting.
After you have the new battery, take off the old one by turning the fob upside down and looking at the back side. You will see a tiny latch that you must unlatch by pulling it down. This will take the mechanical key from the original position within the fob.
Then, you can insert the new battery, and make sure that it's positioned correctly. Close the fob when the battery is in place and then click the two sides of the fob together. Test your key fob after completing this step by pressing the unlocking button. If everything is in working order, you can now take advantage of the Nissan's numerous features. After changing the battery it's recommended to re-program your key fob to make sure that it's functioning properly.
Replace the Transmitter
Your key fob is the "key" to many of your vehicle's essential functions. It can be a devastating blow when it is lost or damaged. A damaged or malfunctioning key fob will prevent you from locking or starting your car.
It's a great idea to have an extra key fob in your possession in case of emergency. The process of replacing your Nissan keyfob is quite simple. The process of replacing your Nissan key fob is easy. You will need an additional flathead screwdriver as well as a new battery to take out the old.
You'll also need an Panasonic CR2032 3V round battery (you can find them in multipacks that cost less than $5 USD). The battery is inside the back part of the key fob. You'll require a small screwdriver with a flat head to gently separate the two halves. Use a flathead screwdriver and smaller flatheads to unbolt the clip that is on the top of the battery. Make sure to note the place of placement. Replace the battery and put the key fob back together. Test it to ensure that it works correctly.
Nissan Intelligent Keys will eventually wear out and require to be changed just like any other electronic device. To prevent this you should try to shield your key fob from magnetic fields, water as well as physical impacts, so be sure not to drop it or put too much pressure on it.

Replace the Key
If your Nissan key fob fails in the middle, you won't be able to use it to unlock your car or to start it. That's a problem for people who need to get to work in Detroit or run errands close to Dearborn, or spend an evening out close to Troy.
It's not that difficult to change the battery on your Nissan Smart Key. You can replace the battery at home, or at the dealership. The average cost for a pack is $5 or less.
Start by flipping the fob upside down and pushing a small catch on the back. This will trigger the mechanical emergency key. The emergency key won't allow you to start your vehicle however it will open the door.
Next you should look for a small gap on the top of the key fob casing. These are perfect to insert the screwdriver in the hole, allowing you to pull the two parts of the key fob apart. Once you've reached the internal battery, take it out it and take note of its location. When you are ready to assemble your key fob, simply insert the new battery and snap the two parts of the case back together. Insert the mechanical key and your Nissan smartkey will work as normal.
Other Problems
Many modern vehicles come with key fobs that allow you to lock them and start them without having a physical key. The key fob uses an electronic transmitter to connect with the computer system of the car.
There are a few possible reasons why your Nissan key fob will not work after you replace the battery. One reason is that the new battery might not be properly placed in the key fob. Another possibility is that the key fob needs to be reset. This is a straightforward process which you can carry out at home with just a few tools.
For instance an screwdriver with a flat-headed tip to remove the battery that was in the key fob. Then, you'll need an open-ended screwdriver the back of the key fob and insert the new battery. You'll also need to reprogramme your key fob in order for it to work with your vehicle.
You can easily program your Nissan key fob yourself, since they're all user-programmable. It is typically done by inserting the keyfob into the ignition two times within five seconds. If this doesn't work, you can usually take the key fob to a dealer or auto locksmith to get it programmed. The cost will vary depending on who you talk to and the kind of car you have.