Reasons Why Your Nissan Qashqai Key Fob Won't Work
The Qashqai's bigger dimensions give it an SUV feel. Its 19-inch alloy wheels in Ti and STL models can also be a bit firm. The front tyres on the Qashqai may also lose grip on rough surfaces and the CVT may occasionally display wrist-flexing torque steering.
It is usually due to a dead battery, which can be replaced in just a few minutes. Make sure the new battery is of the same voltage, size and specification.
Water Damage

Water damage is one of the most common causes for the Nissan keyfob to display the "key ID is incorrect" message. The key fob has rubber seals that protect the electronic chip inside, but prolonged exposure to moisture could cause it to cease functioning properly. This is typically the case when you drop your key fob into the ocean or in a swimming pools, but it could happen when it's wet from rain or soapy hands.
If your key fob has been exposed to water for a prolonged time, it may need to be cleaned using isopropyl alcohol or an electronic cleaner. In addition, it may need to be taken to a specialist to repair or replace it.
If your key fob does require replacement the process is easy. Make sure you have the proper multipack (CR2032 3V). nissan note key and rear cases using a flathead screwdriver. You'll have to remove the clips for retaining metal and then push out the old battery, then replace it with the new one. Reassemble the fob and replace the mechanical key. Make sure it's working properly. If it doesn't then you'll have to take it to a Nissan dealer or a professional auto locksmith for the replacement of the chip in the key. The chip is typically not damaged by water so it shouldn't be too expensive.
Dead Coin Battery
The coin battery is a second common reason for why your Nissan Qashqai remote key fob might not work. These batteries last for 3-5 years, but they may fail over time if the fob has been dropped frequently. You could replace the battery but ensure it's the same voltage and the same dimensions as the original. If you're using another battery, it may cause the key to have an incorrect key ID, which will prevent it from paired with your vehicle.
The best way to change the battery of a coin in the Nissan Qashqai Key Fob is to break it open using 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. The screwdriver should be gently twisted to split the two halves. Remove the old CR2025 battery and replace it with a brand new one, observing the position of the old one in the fob.
Check the terminals for dirt or water damage prior to installing the new battery. If there is, clean the terminals with a tiny amount of isopropyl alcohol. You'll also want to make sure the pole cables are plugged in correctly. They must be connected to the negative and positive poles of the battery.
Troubleshooting
If your Nissan Qashqai key fob stops working after exposure to pure tap water or rain, it may be an indication of an internal chip problem. Change the battery won't fix this, and you'll have to buy another key fob. If you dropped the key fob on the ground and it stopped working right away it's most likely because it damaged the internal chip. If you clean the chip using isopropylethanol and paper towels and then insert it into the key fob, you will typically get it working again.
Key ID Incorrect is a common error you may see on the dashboard of your vehicle. The vehicle is unable recognize the key fob and thus won't allow the car to start. This can happen in many different ways, including water damage, malfunctions that are not detectable within the key fob circuitry or RFID interference.
The key fob won't work when the 12 volt batteries are not working or provide sufficient electric current. This will affect the remote keyless system as well as central locking on your Nissan Qashqai, as well as hindering you from starting the engine with the key fob (if equipped with Intelligent Key). If you are unable to lock or unlock the door by hand it is recommended to check the batteries inside your key fob and make sure they are in good shape. You could also try re-inserting the battery to reset the transmitter.
Reprogramming
If the key fob is not been submerged in salt water the key fob should be able to return to life after a quick rinse with clean water. You may also try cleaning the electronic chip using isopropyl ethanol or an 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 the vehicle. To relink it, start by turning the key into the ignition, without turning on the car. Continue doing this until the hazard light blinks twice. Then, turn off the car and take out the key.
Then, then open the fob compartment in your vehicle. It's usually found on the door jamb or the handle for the driver's door. Find the small "program" button and press it. You should hear a chime sound when the process is completed.
It's time to test your Intelligent Key to the test. Click all the buttons on the key while at a distance away from the car. If the lights flash or the horn sounds, then the key is connected to the Nissan. You may also try testing it in close proximity.