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Reasons Why Your Nissan Qashqai Key Fob Won't Work The Qashqai's greater dimensions give it a distinct SUV-like feel. Its 19-inch alloy wheels on Ti and STL models may also be firm. The front tyres could lose grip on rough surfaces, and its CVT could occasionally exhibit wrist-flexing torque steer. This is usually due to the battery of a coin that is dead. It is easily repaired in a matter of minutes. Make sure that the replacement battery is of the same voltage, size and specifications. Water Damage One of the most common reasons that a Nissan key fob displays the “key ID is not correct” message is due to water damage. The rubber seals on the key fob protect the electronic chip, but prolonged exposure to moisture could cause it not to work properly. It's common to see this happen if your key fob has been dropped in the ocean or swimming pool. However, it could also occur when it is wet due to rain or soapy hands. If your key fob has been exposed to water for an extended period of time, it could need to be cleaned using isopropyl alcohol, or electronic cleaner. In addition, it may require a visit to a professional for repair or replacement. If your key fob is in need to be replaced, it's an easy process. Make sure you've got the correct multipack (CR2032 3V). Unlock the front and rear cases with a flathead screwdriver. You'll need to take out the retaining clips made of metal and pull out the battery that was in place, and then insert the new one. After reassembling the fob, put the mechanical key back into place and verify that it is working correctly. If not it, you'll need to bring it to a Nissan dealer or a professional auto locksmith for the replacement of the key chip. Fortunately the chip isn't often damaged by water exposure, so this should not be too expensive. Dead Coin Battery Another reason why your Nissan Qashqai key fob may not function is that the coin battery has gone dead. They last for 3 to 5 years, but they may fail over time when the fob is frequently dropped. You could try replacing the battery with a fresh one, but make sure that it's the same size and voltage as the original. If you replace the battery, it could cause the key to be assigned an incorrect key ID. This could prevent it from being connected to your vehicle. The best way to change the battery of a coin in a Nissan Qashqai Key Fob is to pry it open with the help of a small screwdriver with a flat head. The screwdriver should be inserted into a small cut on the bottom of the key fob. Make sure to gently twist the screwdriver to break the two halves. Remove the old CR2025 battery and replace it with a brand new one, taking note of the location of the old one in the fob. Before putting the new battery into place, make sure there is no water damage or dirt on the terminals. If there is, wash the terminals using a small amount of isopropyl alcohol. Make sure that the pole cables are connected correctly. They should be connected to the positive and negative poles of your battery. TheKeyLab of a fault If your Nissan Qashqai key fob stops working after exposure to clean tap water or rain it could be a sign of an internal chip problem. You'll require a new fob if you can't resolve the issue by replacing the battery. If you dropped the key fob on the ground and it stopped working instantly it's likely because it damaged the internal chip. If you clean the chip using isopropyl ethanol and a paper towel, then replace it in the key fob, you can generally get it working. Key ID Incorrect is a common error that can be seen on the dashboard of your vehicle. This means that the vehicle cannot recognize the key fob and will not allow it to start the engine. The problem can be caused by many things, including water damage, undetectable faults in the circuitry of the key fob or RFID interference. If the 12 volt battery on your key fob is broken or is not supplying sufficient electric current it will cease to function. This can affect the Nissan Qashqai's keyless system, central locking and the ability to start the engine using the key fob. If you can't unlock or lock the door by hand you must check the batteries inside your key fob and make sure they are in good shape. You may also try reinserting the battery to reset the transmitter. Reprogramming If the key fob has not been submerged in salt water the key fob should be able to come back to life after a quick rinse with clean water. You can also clean the electronic chip using isopropyl or electronic cleaner. If none of these works then you might need to replace the key fob. If your Nissan Intelligent Key still does not function, there could be a connection issue between it and your vehicle. To reconnect it, begin by turning the key into the ignition, without turning on the car. Continue this process until the hazard light blinks twice. Turn off the vehicle and remove the key. Then, you must open the fob compartment inside your vehicle. It's usually on a door jamb or driver's door handle. Locate the small button labeled “program” and press it. After the program is complete you will hear an emitted sound. Now that your Intelligent Key is relinked to the car It's time to test it out. You must stand a certain distance away from the vehicle, and click all of the buttons on it. If the lights flash or the horn sounds, then the key is successfully connected to the Nissan. It is also possible to test the key in close proximity.