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Reasons Why Your Nissan Qashqai Key Fob Won't Work The Qashqai has a distinctly SUV-like appearance due to its larger dimensions, and the 19-inch wheels on Ti and ST-L models can be a bit stiff at times. The front tyres of the Qashqai may also lose traction on rough surfaces, and the CVT could occasionally display wrist-flexing torque steering. This is typically caused by the battery being dead, which can be replaced in a matter of minutes. Be sure that the replacement battery is of the same voltage, size and specifications. Water Damage Water damage is one of the most common causes for an Nissan keyfob to display the “key ID incorrect” message. The key fob comes with rubber seals that shield the electronic chip inside, however prolonged exposure to moisture can cause it to stop functioning properly. It's normal to see this if your keyfob was dropped into the water or a swimming pool. However, it could also occur when it becomes wet due to rain or soapy hands. If your key fob was exposed to water for a long period of time then you might need to clean it using isopropyl or electronic cleaner. It may also require taking to an expert for repair or replacement. If your key fob has to be replaced, it is a relatively simple procedure. First, make sure that you have a multipack of the correct battery (CR2032 3V). Unlock the front and rear cases using the flat-head screwdriver. Remove the metal clips, then remove the old battery and replace it. Reassemble the fob and replace the mechanical key. Check that it works properly. If it doesn't then you'll need to take it to a Nissan dealer or a professional auto locksmith for replacement of the chip in the key. The chip is usually not damaged by water so it isn't too costly. Dead Coin Battery Another reason that your Nissan Qashqai key fob might not function is that the battery in the coin has gone dead. These batteries last for three to five years, but may fail over time in the event that the fob has been dropped often. You could replace the battery but ensure it's the same voltage and the same dimensions as the original. If you choose to use a different battery, it can cause the key to have an invalid key ID that could hinder it from paired with your vehicle. The most efficient method to change the coin battery in the Nissan Qashqai Key Fob is to break it open using an small screwdriver that has a flat head. The screwdriver should be inserted into a small notch at the bottom of the fob, and turn it around gently to separate the two halves of the key fob. Remove the old CR2025 battery and replace it with a brand new one, noting the position of the old battery in the fob. Before you put the new battery in be sure that there is no dirt or water damage on the terminals. If there is clean the terminals using a small amount isopropyl ethanol. You'll also need to make sure the pole cables are plugged in correctly – they should be connected to the negative and positive poles of the battery. Troubleshooting If your Nissan Qashqai's primary fob isn't working after exposure to pure rainwater or clean tap water it could be a sign there is an issue with the internal chip. Change the battery won't fix this issue, and you'll have to purchase a new key fob. If you dropped the key fob on the ground and it stopped working right away, this is most likely because it damaged the internal chip. If you clean the chip using isopropylethanol and paper towels, then replace it in the key fob, you can generally get it back to working. Key ID Incorrect is a typical mistake that you might see on the dashboard of your car. The car is unable to recognize the key fob and consequently, won't allow the vehicle to start. The problem can be caused by a variety of factors such as water damage, undetectable malfunctions in the key fob's circuitry or RFID interference. The key fob will stop working in the event that the 12 volt batteries are not working or provide sufficient electric current. This will affect the Nissan Qashqai's keyless system, central locking and the ability to start the engine with the key fob. Examine the batteries on the key fob if you're in a position to lock or unlock your door manually. You may also try reinserting the battery to reset the transmitter. Reprogramming If the key fob was not submerged in saltwater it should be revived by a simple wash of clean water. You can also clean the electronic chip with isopropyl or electronic cleaner. If none of these works, it may be time to replace the entire key fob by a new one. If replacement nissan key fob is still not working, there could be an issue with the connection between it and your car. To reconnect it, begin by turning the key into the ignition, without turning on the car. Continue to do this until you see the warning lights flash twice. Turn the vehicle off and take out the keys. Open the fob compartment of your vehicle's fob compartment. It is usually located on a door's jamb or the handle of the driver's door. Find the small “program” button and press it. You should hear a chime sound once the process is complete. Now that your Intelligent Key is relinked to the car, it's time to test it out. Take a step away from the car, and press all the buttons on it. If the lights flash, or the horn sounds, then the key is connected to the Nissan. You can also test it near the Nissan.