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Reasons Why Your Nissan Qashqai Key Fob Won't Work The Qashqai's large dimensions give it an SUV feel. Its 19-inch alloy wheels in Ti and STL models may also be a bit firm. The front tyres could lose grip on rough surfaces, and its CVT may occasionally exhibit wrist-flexing torque steer. This is usually caused by dead batteries that can be replaced in just a few minutes. Make sure the replacement battery is of the same size, voltage and specifications. Water Damage One of the most common reasons a Nissan key fob displays the “key ID is not correct” message is due to water damage. The rubber seals on the key fob guard the chip's electronics, but prolonged exposure to moisture could cause it to not function correctly. It's typical to observe this when your key fob has been dropped in the ocean or swimming pool. However, it can happen when it gets wet from rain or soapy hands. If your key fob is exposed to water for a lengthy duration, it might have to be cleaned using isopropyl alcohol, or electronic cleaner. Or, it could need to be taken to an expert for repair or replacement. If your key fob does require replacement the process is easy. First, make sure that you have a multipack of the right battery (CR2032 3V). Open the front and rear cases with a flathead screwdriver. Remove the metal clips, then remove the battery, and then replace it. After reassembling the fob, put the mechanical key back into its place and make sure it operates correctly. If it doesn't then you'll need to go to your local Nissan dealer or an experienced auto locksmith to repair the chip that controls the key. The chip is not usually damaged by water so it should not cost a lot. Dead Coin Battery Another reason that your Nissan Qashqai key fob might not work is because the battery inside is dead. They typically last for 3 to 5 years, but they may fail in time, particularly when the fob is frequently dropped. You could replace the battery but ensure it's the same voltage and same size as the original. If you are using a different battery it may cause the key to have an invalid key ID which will prevent it from pairing with your vehicle. The best way to change the coin battery in the Nissan Qashqai Key Fob is to pry it open with a small flat-head screwdriver. The screwdriver must be inserted into a small notch at the bottom of your key fob. Gently twist the screwdriver to separate the two halves. Then, take out the old CR2025 button cell battery and insert the new one after confirming its location on the fob. Before putting the new battery into place check to ensure there is no dirt or water damage to the terminals. If not clean the terminals with a small amount isopropyl ethanol. You'll also need to make sure the pole cables are connected correctly. They should be connected to the negative and positive poles of the battery, respectively. Troubleshooting If your Nissan Qashqai's keys fob stops working after exposure to clean water from the tap or rain it could be a sign that there is a problem with the internal chip. You'll need a new keyfob in the event that you can't fix the problem by replacing the battery. If you dropped the key fob on the ground and it stopped working instantly, this is most likely due to the damage to the internal chip. If you clean the chip using isopropyl ethanol and paper towel and then put it back in the key fob, you'll generally get it back to working. One common error you might see on your car's dashboard is “Key ID Incorrect.” This means that the vehicle cannot recognize the key fob and will not allow it to start the engine. This problem can be caused several ways, such as water damage, problems that are undetectable within the key fob circuitry or RFID interference. The key fob won't work in the event that the batteries with 12 volts are dead or fail to provide enough electrical current. This will affect the Nissan Qashqai's keyless system central locking, as well as the ability to start the engine using the key fob. Examine the batteries on the key fob if you are unable to lock or unlock your door by hand. You could also try re-inserting the battery to reset the transmitter. Reprogramming If the key fob was not submerged in saltwater it should be revived with a simple wash of clean water. You can also clean the electronic component using isopropyl or electronic cleaner. If these don't work, it may be time to replace the entire key fob with an entirely new one. If your Nissan Intelligent Key still does not work, there may be a problem with the connection between it and your vehicle. To reconnect it, start by turning the key into the ignition, but not starting the car. Continue to do this until you see the hazards lights flash twice. Turn off your vehicle and remove the key. Next, open the fob compartment in your vehicle. It's usually in the door jamb, on the handle for the driver's door or under the armrest. Locate the small button labeled “program” and press it. Once nissan key replacement G28CarKeys has been completed you will hear the sound of a chime. Now that your Intelligent Key is relinked to the car, it's time to test it out. Press all the buttons on the key while at a distance from the vehicle. If the lights flash and the horn sound it means the key has been successfully linked to the Nissan. You can also test the key in close proximity.