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How to Replace a Nissan Juke Spare Key Nissan Juke is a fun and stylish hatchback, with an unusual engine configuration. It can be a bit noisy, but it's still enjoyable to drive. The battery that powers the key fob on your Nissan Juke should be replaced every two years or every two years, or when it's low. It's simple to do at home, but you'll need some tools. Dead Coin Battery If your Nissan Juke key fob has stopped functioning the first thing you need to check is the coin battery inside it. It could be dead and need to be replaced. This is a simple fix that takes only about a couple of minutes. Flip the fob upside down so that you'll be able access the tiny latch/release located at the back. Remove the old battery and then insert the new one, ensuring sure that it's facing down in the fob. Line up the two halves of the fob carefully. The fob needs to be cleaned if it was exposed to water before you are able to install an entirely new battery. Clean the fob using isopropyl or electronic cleaner, and paper towels. Then, let it dry completely prior to reinstalling the battery. To start the car the key fob must be paired with the car. This can be done by following the instructions in the owner's manual, or using an OBDII scan. If nissan juke key fob replacement fob hasn't been paired, this is the most likely explanation of why it isn't working. It is also possible that the fob is equipped with an issue with the chip, but this is not common. In this instance an entirely new receiver module may be needed. If this is the situation it must be replaced by an expert technician. Water Damage The key fobs run on batteries and the batteries must be replaced every two years or at the point that the vehicle stops responding when you push the “start” switch. The rubber seals on keys keep water out, but submerging your key fob in the pool or ocean can damage the chip's electronic. If this happens, you will need to buy a replacement key from Nissan or an automotive locksmith. If the key fob is equipped with an active chip It's likely that the computer has simply lost its connection to it, which can happen for any number of reasons. A simple restart of the car can fix this, but if the key's still displaying the “Key ID” error message, you'll need to contact Nissan or an auto locksmith for help. Three common causes are dead battery for the key fob or a key that's not programmed, and an unrepaired key fob that is damaged. The first two issues are simple to fix, while the latter is a bit more difficult to fix in the moment, but it is generally fixable by a little patience. Compare Nissan Key Replacement costs near you using WhoCanFixMyCar and book your repair online. It takes just two minutes and you can read reviews from local garages, Nissan car mechanics and dealerships before you decide. Faulty Chip The key fob of your Nissan Juke contains a special chip which sends a message to the vehicle each time you turn it. The key could not function when the chip is damaged. In this case it is only possible to fix the problem by replacing the key. Your Nissan Juke key may be damaged due to several reasons, including water damage or an inactive coin-battery. Check the chip for water damage if your key fob has stopped working after a bath or wash. Make sure the clips holding the chip are securely. Also, ensure that the chip isn't exposed water. If you notice any signs of water damage to the electronic component, remove the battery and wipe it down with isopropyl-ethanol or electronic cleaner. If the chip is defective If it is damaged, you should visit your local locksmith or dealer. They will need the year as well as the model, make and year of your vehicle to find a replacement. It is also necessary to write down the VIN (Vehicle Identification Number) so that the dealer or locksmith knows precisely which key you own. This will enable them to check the correct key code and ensure they are cutting the correct key. Faulty Receiver Module The fob's key sends a radio signal to your car to perform various functions. The key fob can open your trunk when you are rushing with groceries to your car or even start your car by pressing a button on the fob. It can also open your windows and turn on the horn in the event that you lock the keys inside your car. If the key fob stops working, it could be an issue with the receiver unit in the vehicle. The receiver modules are tuned to receive specific frequencies that match the signals that are transmitted by the Nissan key fob. If your car is equipped with an unreliable receiver module it will not respond to any signal coming from the key fob. It's recommended to carry a spare Nissan key fob in the event that your original key gets lost or breaks. A locksmith or dealer can program the spare key to work with your Nissan. This will allow you to avoid the hassle of losing your keys or locking them in your car. If your Nissan Juke's key fob has been exposed to rain or clean tap water, you can resolve the issue by cleaning it with isopropyl, or an electronic cleaner. If the chip has become damaged, you will need to purchase the new keyfob, which can be programmed for your vehicle by a locksmith or dealer.