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Seat Alhambra Key Problems Seat's jumbo MPV family is among the top in its class when it comes to resales value. With a new generation model available it's even more impressive. There are a number of reasons that the key fob might not work properly including dead coin battery water damage, receiver module issues, or signal interference. This article will guide you through the steps to get it back in working order. Water Damage If your key fob for the seat Alhambra is able to withstand an wash cycle or a dip in an ocean or in a pool, then it is equipped with a waterproof chip. But be careful not to do this often as excessive exposure to water can increase chances of the key fob being damaged. If the key fob stops working after exposure to clean water from the tap or rain, simply take out the battery, wipe the electronic component with a paper towel and let it dry completely before putting the battery back into. In case of exposure to soapy or salty water it is recommended to wash the chip using isopropyl alcohol or a 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 for the button it is possible that the receiver module is suffering from an issue. The good news is that this is a relatively simple repair that is inexpensive, you can just remove the battery 12 volts for a few minutes (first take off the negative cable, then press the horn button a few times) to eliminate any remaining electrical current and then reconnect it in reverse order e.g. positive cable first and then negative. ESP Warning Light – If the ESP symbol is illuminated, this is normal. key seat is a sign that you are driving on a terrain with poor traction. This could be caused by snow, gravel or surface water. If the ESP warning light remains flashing, it means there is an error within the system and should be detected using an iCarsoft i908 Seat OBD Code Reader which will provide you with a specific fault description. Dead Coin Battery A dead coin battery is one of the most frequent reasons for the keys for the seat to stop working. The key fob is powered by a small button-cell battery. It should be replaced with a brand new one with identical in size, voltage, and specification as the original. If you're replacing your battery, be sure to remove all metal clips from the back of the key fob and make sure that the contacts are clean and free of corrosion. If the key fob has been exposed water, such as rain or soapy water, it's recommended that you remove the battery and clean the electronic chip with alcohol or an electronic cleaner prior to putting in the new battery. The chip is sensitive to moisture and may be permanently damaged. If the key fob still not working after replacing the battery, it could be necessary to replace the entire key fob. Faulty Receiver Module If your key fob stopped working after replacing the battery but it did not help, or it just stopped working out of the blue the receiver module could have developed a fault. The receiver module receives the radio frequency signals from the remote keyfob and converts them into electrical commands which are then used by other modules within the car. If the receiver module is faulty and is not able to take any commands from your remote key fob. In this scenario it is necessary for a dealer to reprogramme your key fob as well as install the new receiver. The key fob has been sealed with rubber to prevent water from getting inside the electronic chip. If you immerse the key fob in salty or soapy water, it could damage the chip. You can attempt to clean the chip by rub it with isopropyl alcohol or electronic cleaner, however if your key fob still isn't working after all this, then you'll need to buy a new one. If the keys are successfully paired, but your receiver module is malfunctioning then you can restart all the electronics on board by disconnecting the battery at 12 volts for couple of minutes. Then, reconnect the battery in reverse order (negative cable first followed by positive). This will reset all the on-board electronics and should restore their functionality. Electronic chip that is malfunctioning The key fob contains tiny electronic chips that sends a signal to the receiver module each time the key is used. If the signal doesn't match the one that the car has stored the immobilizer will be disabled and prevent the vehicle from starting. If the key fob you purchased does not work and you are unable to reprogram it, this could be because of a faulty microchip. The chip in the key fob isn't a permanent part of the device, and might need to be replaced to get it to work again. The most effective method for doing this is by removing the key from its housing and then using a pin or needle to make contact with each of the metal retaining clips. You will require replacement when they're damaged or damaged by corrosion. Make sure that the replacement batteries are of the same voltage, size and specification as the original one. Seat Alhambra is a well-known and well-designed model, could be a bit troublesome with certain components or equipment. For example there have been reports of owners experiencing issues with the automatic climate control system, which may fail and become stuck in a particular setting. Similarly, the infotainment system has also been recognized to malfunction and even freeze screens.