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Seat Alhambra Key Problems Seat's jumbo family MPV is among the top in the market when it comes to maintaining resale value. With a new generation model available, it's even better. There are a variety of reasons why the key fob could not function correctly, including dead battery or damage to the receiver module, water issues or signal interference. This article will walk you through the steps needed to get it working again. seat leon car key battery replacement If your seat alhambra key fob survives the wash cycle or a bath in the ocean or pool it's likely to have an incredible waterproof chip, but don't make this a habit as exposure to excessive water increases the chance of the key fob becoming damaged. If the key fob stops working after exposure to clean tap water or rain, simply take out the battery, clean the electronic component with a towel and allow it to dry completely before putting the battery back into. If the key fob was exposed to soapy or salty water it is recommended that you clean the chip with isopropyl or electronic cleaner. Faulty Receiver Module If you have tried a new battery for a button and the key fob still cannot be locked or unlocked, it's likely that the receiver module has found a fault. The good news is that this is a relatively simple and inexpensive repair, you can simply remove the battery 12 volts for several minutes (first take off the negative cable and press the horn button numerous times) to drain any residual electrical current and then reconnect it in reverse order e.g. Positive first followed by negative. ESP Warning Light – If the ESP symbol is flashing, this is normal. It means that you're driving on terrain with poor traction. This could be due to gravel, snow or surface water. If the ESP light is constantly on, it is a sign that there is a flaw in the system. This can be diagnosed with a iCarsoft i908 seat OBD code reader kit. It will provide you with a an in-depth description of the fault. Dead Coin Battery One of the most frequent reasons for the seat alhambra key not working is a dead battery. The key fob is powered by a small button-cell battery. Replace it with a brand new battery that has the exact size, voltage and specifications as the original. If you are replacing the battery, ensure that you remove all metal clips from the back of the key fob. Also make sure that the contact points are clean and free of corrosion. If the key fob has been exposed to water, like rain or soapy water, it's recommended that you take the battery off and clean the electronic chip with isopropyl alcohol or a electronic cleaner prior to inserting the new battery. The chip may be permanently damaged by water. If the key fob still does not work after replacing the battery, it may be necessary for you to replace the key fob. Faulty Receiver Module If your key fob stopped functioning after replacing the battery but it didn't function, or suddenly stopped working the receiver module may be experiencing a problem. The receiver module is responsible for capturing the radio frequency signals that are sent by the remote key fob and convert them into electrical signals that are then utilized by other modules in your car. If the receiver module is damaged, it will not accept any commands from your remote key fob. In this case, you will be required to visit a service to reprogramme the key fob, and also a new receiver module. The key fob is encased with rubber to prevent water from getting inside the electronic chip. However, if you submerge your key fob into salted or soapy ocean water, the chips inside could be damaged. You can try to clean the chip by applying isopropyl alcohol or electronic cleaner, but If your key fob doesn't work after doing this, then you'll need to purchase a new one. If the keys are connected, but the receiver module is malfunctioning You can try to restart all of the electronics on board by disconnecting the battery at 12 volts for few minutes. Then, reconnect the battery in reverse order (negative cable first before positive). This resets all the electronics onboard and will bring them back to their original functionality. A malfunctioning electronic chip The key fob comes with a tiny chip which transmits the signal from the key to the receiver module each time the key is used. If this signal does not match the one recorded by the car the immobilizer will stop the engine and stop the vehicle from starting. However, if the fob isn't working, and you can't reprogram it this could be due to a faulty chip. The chip in the key fob isn't a permanent part of the device and might have to be replaced in order to get it to work again. The best method to do this is to remove the key from its housing and then using a pin needle to connect with each of the metal retaining clips. If these are corroded or damaged, you'll require replacement in order for the remote control to function. Make sure that any replacement batteries are of the same size, voltage, and specifications as the original. Seat Alhambra is a popular and well-designed model, could have issues with certain parts or components. A few owners have reported issues with the climate control system that is automatic. It can fail and cause problems, and then get stuck in a certain setting. Additionally, the infotainment feature has also been reported to malfunction and freeze screens.