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How to Replace a Nissan Juke Spare Key Nissan Juke is a fun and stylish hatchback that features an unusual engine configuration. It's quite noisy but still fun to drive. Replace the battery for the key fob of your Nissan Juke every two years, or when it's at a low. You can do it yourself, however you'll need tools. Dead Coin Battery If your Nissan Juke key fob has stopped functioning the first thing you should check is the coin battery within it. The KeyLab could be dead and need to be replaced. This is a simple fix that will take only a few minutes. You can do this by flipping the fob over and removing the tiny latch/release at the back. Remove the battery that was in use and then replace it with the new one, ensuring sure it's facing downwards in the fob and line up the two halves of the fob with care. The fob needs to be cleaned if it was exposed to water before you are able to insert an entirely new battery. It is possible to clean the fob with isopropyl electronic cleaner and a paper towel. Then let it dry completely prior to reinstalling the battery. The key fob needs to be connected with the car in order to be able to start the car. This can be accomplished by following the instructions in the owner's manual, or an OBDII scanner. The most likely reason for why the key fob was not working is that it wasn't connected to the car. A defective chip inside the fob can cause it to stop working however this is not a common occurrence. In this case an entirely new receiver module might be needed. If this is the scenario, it's going to need to be replaced by an authorized technician. Water Damage A key fob is powered by batteries, and the batteries must be replaced every two years or as often, or at the first sign of your car not responding when you hit the “start” button. The rubber seals on keys are designed to keep out water, however submerging a key fob into the ocean or in pool water can cause damage to the electronic chip. If this happens, you'll need to get the replacement key from Nissan or a locksmith. It's possible that the computer lost connection to the key fob that could be caused by a variety of reasons. This can be corrected by restarting the car. If the “Key ID error” message is still visible then you must contact Nissan for assistance. The three most frequent causes of this problem are dead batteries on key fobs, a non-programmed key, and a damaged, or malfunctioning key fob that is damaged or faulty. The first two are easy to resolve, while the third one is more difficult to fix on the spot, however it is generally fixable with a bit of patience. Compare Nissan Key Replacement prices near you with WhoCanFixMyCar and book your repair online. It only takes minutes and you can review customer reviews from local garages, Nissan car mechanics and dealerships before deciding. Faulty Chip The key fob on your Nissan Juke has a special chip that transmits a signal to the car whenever you turn it. The key could not function when the chip is damaged. In this case it is only possible to solve the issue by replacing the key. There are many reasons your Nissan Juke's key could be damaged, including water damage or a dead coin battery or a damaged receiver module. Examine the chip for water damage if your key fob has stopped working after a bath or wash. Make sure the clips that hold the chip are tight. Also, ensure that the chip isn't exposed water. If you observe any signs of water damage, try taking off the battery and then wiping the electronic component using isopropyl alcohol, or electronic cleaner. If the chip is damaged You'll need to contact your local locksmith or dealer. To find a replacement chip, they will require the year, make and model of your car. You'll also need record your VIN (Vehicle ID Number) to ensure that the dealer or locksmith knows the key you have. This will enable them to find the correct key code and make sure that they cut the correct one. Faulty Receiver Module The key fob sends out a radio signal to your vehicle that performs various functions. The key fob can open your trunk while you hurry with groceries to the car or even start your car by pressing the fob's button. It can even open your windows and turn on the horn if you have a mishap and lock your keys inside the car. If the key fob doesn't function, it could be due to a glitch in the receiver module. The receiver modules are tuned to ensure they can receive certain frequencies that correspond to signals that are transmitted by Nissan key fobs. A faulty receiver module will prevent your car from responding to the signal generated by the key fob from Nissan. Regardless of how your Nissan key fob ends up getting damaged, it's always recommended to have a spare key in case the key becomes broken or lost. A spare key can be programmed by a locksmith or dealership to work with your Nissan and help you avoid the difficulty of locking your keys in your car or losing them. If your Nissan Juke key fob is exposed to clean water from the tap or rain, the problem could be resolved by cleaning it with isopropyl ethanol or electronic cleaner. If the chip has fried, you'll need to purchase a new keyfob that can be coded for your car by a locksmith or dealer.