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Reasons Why Your Nissan Qashqai Key Fob Won't Work The Qashqai's greater dimensions give it an SUV feel. Its ride on 19-inch alloy wheels on Ti and STL versions may also be firm. The front tyres could lose grip on rough surfaces, and its CVT can occasionally display wrist-flexing torque steer. This is usually caused by dead batteries, which can be replaced in a matter of minutes. Be sure that the replacement battery is the same voltage, size, and specification. Water Damage Water damage is among the most common causes for the Nissan keyfob to display the “key ID is wrong” message. The key fob has rubber seals which protect the chip inside. However, prolonged exposure to moisture could cause it to cease functioning properly. It's normal to see this when your key fob has been dropped in the ocean or in a pool. But it can also occur when it's wet from the rain or soapy hands. If your key fob is exposed to water for a prolonged period of time, it could need to be cleaned with isopropyl alcohol or an electronic cleaner. It could also require to be sent to an expert to repair or replace it. If your key fob requires to be replaced, it's quite simple to do. Make sure you have the proper multipack (CR2032 3V). Unlock the front and rear cases with the flat-head screwdriver. You'll need to remove the clips that hold the metal together and remove the old battery, then replace it with the new one. Reassemble the fob and replace the mechanical key. Check that it works properly. If it doesn't then you'll have to go to your local Nissan dealer or an experienced locksmith to replace the chip in the key. The chip isn't usually damaged by water and should not be too expensive. Dead Coin Battery Another reason that the reason your Nissan Qashqai key fob may not function is because the battery inside is dead. The batteries typically last between 3-5 years but can go bad over time, especially when the fob is frequently dropped. You can replace the battery however, make sure it's the same voltage and the same size as the previous. If you are using another battery, it may cause the key to have an untrue key ID, which will prevent it from connecting to your vehicle. The most effective method of changing the battery on a Nissan Qashqai Key Fob is to pry it open with the help of a small screwdriver with a flat head. Insert the screwdriver into a small notch on the bottom of the fob and turn it around gently to separate the two parts of the key fob. Remove the old CR2025 battery and replace it with a brand new one, taking note of the location of the previous one inside the fob. Before you put the new battery into place check to ensure there isn't any dirt or water damage to the terminals. If there is, clean the terminals with a small amount of isopropyl alcohol. You'll also want to ensure that the pole cables are plugged in correctly. They must be connected to the negative and positive poles of your battery, respectively. Fault Diagnosis If your Nissan Qashqai key fob stops working after exposure to clean rain or tap water it could be a sign of an internal chip issue. You'll need a new keyfob if you can't solve the issue by replacing the battery. If you dropped the key fob on the ground and it stopped working instantly it's most likely because it has damaged the internal chip. It is possible to get the key fob to function once more if you remove and clean the chip with paper towel and isopropyl alcohol and then put it back in. One common error you may notice on the dashboard of your car is “Key ID Not Correct.” The vehicle is not able to recognize the key fob, and thus won't allow the vehicle to start. The issue can be caused by a variety of factors including water damage, undetectable problems in the circuitry of the key fob, or RFID interference. The key fob will not function when the 12 volt batteries are not working or provide enough electrical current. This can affect the remote keyless system and central locking in your Nissan Qashqai, as well as preventing you from starting your engine with the key fob (if equipped with Intelligent Key). Check the batteries inside the key fob if you are unable to lock or unlock your door by hand. You can also try re-inserting the battery to reset the transmitter. Reprogramming If the key fob is not been submerged in salt water, it should be able to be restored to its original state after a quick rinse with clean water. You could also try cleaning the electronic chip using isopropyl Alcohol or an electronic cleaner. If replacement nissan key fob of these works it could be time to replace the entire key fob with an entirely new one. If your Nissan Intelligent Key still does not work, there could be a connection issue between it and your vehicle. To relink it, start by turning the key into the ignition without starting the car. Continue this process until the hazard light blinks twice. Then, turn off the car and take out the key. Next, open the fob compartment in your vehicle. It's usually on a door jamb or the handle of the door for the driver. Locate the small button labeled “program” and press it. You will hear a chime once the process is complete. Now that your Intelligent Key is relinked to the car, it's time to test it out. Use all the buttons on the key while at a distance from the vehicle. If the lights flash, or the horn sounds, then the key is successfully connected to the Nissan. You can also test it close to the Nissan.