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Reasons Why Your Nissan Qashqai Key Fob Won't Work The Qashqai has a distinctly SUV feel to it thanks to its larger dimensions, and the ride on 19-inch wheels in Ti and ST-L models can be firm at times. The front tyres may lose grip on rough surfaces, and its CVT can occasionally display wrist-flexing torque steer. This is usually the result of dead batteries that can be replaced in a matter of minutes. Make sure the battery you replace is of the same size, voltage and specification. Water Damage Water damage is one of the most common causes that cause a Nissan keyfob to display the “key ID is wrong” message. The key fob comes with rubber seals that protect the chip inside. However, prolonged exposure to moisture can cause it not to function properly. This is typically the case in the event that you've dropped your key fob into the ocean or in a swimming pools, but it could happen when it's wet from soapy hands or rain. If your key fob has been exposed to water for a long period of time, you may need to clean it using isopropyl and electronic cleaner. In addition, it may need to be taken to a specialist to repair or replace it. If your key fob is in need to be replaced, it's an easy procedure. First, ensure that you have a multipack of the right battery (CR2032 3V). Open the back and front cases using an abrasive screwdriver. You'll need to remove the clips that hold the metal together and push out the battery that was in place, and then insert the new one. Reassemble the fob and replace the mechanical key. Verify that it is working correctly. If not it is necessary to bring it to a local Nissan dealer or a professional locksmith to replace the key chip. Fortunately the chip isn't typically damaged by exposure to water and this shouldn't be a major expense. Dead Coin Battery Another common reason the reason your Nissan Qashqai key fob might not function is that the coin battery has gone dead. These batteries last three to five years, but may fail over time if the fob has been frequently dropped. You could replace the battery however, make sure it's the same voltage and same dimensions as the original. If you install a new battery, it may cause the key to be assigned a wrong key ID. This will prevent it from being connected to your vehicle. The most efficient method of replacing the coin battery on the Nissan Qashqai key fob is by prying open the fob with a small flat head screwdriver. The screwdriver needs to be inserted into a small hole on the bottom of your key fob. Make sure to gently twist the screwdriver to break the two halves. Then, remove the old CR2025 button cell battery and replace it with another one after confirming its location in the fob. Before putting the new battery in place check to ensure there isn't any dirt or water damage on the terminals. If there is, wash the terminals using a small amount of isopropyl alcohol. Also, make sure the pole cables are plugged in correctly. They must be connected to the positive and negative poles of the battery respectively. Troubleshooting If your Nissan Qashqai's primary fob stops working after exposure to water that is clean from a tap or rain it could be a sign that there's an issue with the internal chip. You'll need a new keyfob in the event that you can't solve the issue by replacing the battery. If the key fob didn't work after dropping it, it is likely that the chip inside was damaged. If you clean the chip using isopropylethanol and paper towels and then put it back in the key fob, you can generally get it back to working. Key ID Incorrect is a typical error you may see on the dashboard of your vehicle. The vehicle is not able to recognize the key fob, and consequently, won't allow the car to start. The issue can be caused by a variety of factors, including water damage, undetectable problems in the key fob's circuitry, or RFID interference. If the 12 volt battery in your key fob is dead or not providing enough electrical current, it will stop working. This can affect the remote keyless system as well as central locking of your Nissan Qashqai, as well as preventing you from starting the engine with the key fob (if equipped with Intelligent Key). If you're unable unlock or lock the door by hand, you should check the batteries inside your key fob and make sure they are in good shape. You could also try reinstalling the battery to reset your transmitter. Reprogramming If the key fob had not been submerged in salt water the key fob should be able to come back to life after a simple rinse with clean water. You can also clean the electronic chip using isopropyl or electronic cleaner. If none of the above works, you may need to replace the key fob. If your Nissan Intelligent Key is still not working, it could be a problem with the connection between it and your car. To reconnect it, begin by turning the key into the ignition, but not starting the car. Keep doing this until you see the hazard lights flash twice. Then, turn the vehicle off and take the keys out. Open the fob compartment of your vehicle. The KeyLab 's usually located on a door's jamb or the handle of the door for the driver. Locate the small button labeled “program” 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. Click all the buttons on the key while standing at a distance from the car. If the lights flash and the horn beeps, it means that the key has successfully connected to the Nissan. It is also possible to test it in close proximity.