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Seat Alhambra Key Problems Seat's jumbo family MPV is one of the best in the market in terms of retaining resale value. And with a brand new model on sale it's even more impressive. There are a variety of reasons why the key fob might not work as expected, including the battery being dead or damage to the receiver module, or signal interference. This article will walk you through the steps to make sure it works. Water Damage If your key fob for the seat Alhambra is able to withstand the wash cycle, a dip in the ocean or a pool, then it has a waterproof chip. But, you shouldn't do this often since prolonged exposure to water can increase the chance that the key fob will be damaged. If your key fob stops functioning after exposure to rain or clean tap water, remove the battery and clean the electronic component using a towel. Let it dry completely before replacing the battery. If you are exposed to soapy or salty water, it is recommended to wash the chip with isopropyl alcohol or electronic cleaner prior to trying to put the battery back in. Faulty Receiver Module If the key fob will not lock or unlock after having replaced the battery of the button it could be that the receiver module is suffering from a fault. The good news is that this is a relatively simple repair that is inexpensive, you can just disconnect the 12 volt battery for several minutes (first take off the negative cable then press the horn button several times) to remove any remaining electricity and then reconnect it in reverse order e.g. positive cable first and then negative. ESP Warning Light – If the ESP warning symbol flashes this is normal and means that the car is driving through terrain where the traction of the road surface and tyres aren't as good, like gravel, snow or a lot of surface water. If the ESP light is always on, it is a sign that there is a flaw in the system. This can be diagnosed by using an iCarsoft i908 seat OBD code reader kit. It will provide a detailed fault description. Dead Coin Battery One of the most frequent reasons for the seat alhambra key not working is a dead coin battery. The key fob has a small button cell battery which keeps it powered. Replace it with a new battery that is the same voltage, size and specification as the original. If you're replacing the battery be sure to remove all metal clips from the back of the key fob. Also, make sure the contacts are free of corrosion. If seat key cover has been exposed water, such as rain or soapy water it is recommended to remove the battery and clean the electronic chip with isopropyl alcohol or an electronic cleaner prior to installing the new battery. The chip is sensitive to moisture and can be permanently damaged. If the key fob still isn't working after replacing the battery, it could be necessary to replace the key fob. Faulty Receiver Module If your key fob stopped working after replacing the battery, but it didn't function, or stopped working in a sudden manner the receiver module may have encountered a problem. The receiver module is responsible to receive the radio frequency signals sent by the remote key fob and convert them into electrical signals that are then used by other modules in your car. If the receiver module has suffered a malfunction that prevents it from responding to any of the commands transmitted by your remote key fob. In this scenario the dealer will have to reprogramme your key fob and install a new receiver. The key fob is fitted with rubber seals to prevent water from getting into the chip inside. If you immerse the key fob in salty or soapy water, the chip inside may be damaged. You can attempt to clean the chip by using isopropyl Alcohol to rub it or electronic cleaner, however If your key fob isn't working after all this, then you'll need to buy a new one. If the keys have been paired, but the receiver module is faulty, you can try to restart all the electronics on board by disconnecting the battery that is 12 volts for a few minutes. Then reconnect the battery in reverse order (negative cable first and then positive). This will reset all the electronics onboard and will bring them back to their original functionality. Faulty electronic chip The key fob is equipped with a tiny chip that transmits the signal from the key to the receiver module every time the key is used. If this signal does not match the one stored by the car the immobilizer is able to shut off the engine and stop the vehicle from starting. However, if the key fob isn't working, and you are unable to reprogram it then it could be due to a malfunctioning chip. The chip in the key fob is not permanent to the device, and might need to be replaced to get it to work again. This can be done by getting the key fob removed from its housing, and then using a needle or pin to make contact with each metal retaining clip. If they are corroded or damaged, you'll have to replace them to allow the remote control to work. Make sure that the replacement batteries are of the same size, voltage, and specification as the original. Seat Alhambra is a well-known and well-designed model, could be troublesome due to certain components or equipment. For example some owners have encountered problems with the automatic climate control system, which can malfunction and cause problems in a specific setting. Similarly, the infotainment system has also been found to malfunction and cause freeze screens.