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Seat Alhambra Key Problems Seat's family MPV jumbo is among the top in the market in terms of retaining resale value. And with a new generation model available it's even more impressive. There are a variety of reasons why the key fob may not function properly, such as a dead coin battery or water damage, receiver module problems or signal interference. This article will guide you through the steps necessary to fix it. Water Damage If your seat alhambra key fob is able to withstand the wash cycle or a bath in the ocean or pool then it probably has an incredible waterproof chip, but do not use it regularly since exposure to excessive water increases the risk 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, clean the electronic component with a towel and let it dry completely before putting the battery back into. In the event of exposure to salt or soapy water it is recommended to wash the chip with isopropyl alcohol or electronic cleaner prior to attempting to put the battery back in. Faulty Receiver Module If you've tried a new button cell battery and the key fob still isn't locked or unlocking, it's likely that the receiver module has found a fault. The positive side is that this is a simple and inexpensive repair, you can just disconnect the 12 volt battery for a few minutes (first take off the negative cable then press the horn button several times) to eliminate any remaining electricity and then reconnect it in reverse order e.g. positive cable first then negative. ESP Warning Light – If the ESP symbol is illuminated, this is normal. It is a sign 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 means that there is a problem in the system. This can be diagnosed by using an iCarsoft i908 seat OBD code reader kit. It will provide detailed information about the fault. Dead Coin Battery A dead battery for the coin is among the most common reasons for the seat alhambra keys to cease to function. The key fob comes with tiny button cell batteries that keeps it powered. It is recommended to replace it with a replacement that has identical in size, voltage and specifications as the original. When replacing the battery on the key fob remove all metal clips and ensure that the contacts of the key fob are in good condition and free of corrosion. If the key fob was exposed to water (such as soapy or rain tap water), it is recommended that you remove and clean the chip with an electronic cleaner or isopropyl alcohol before installing a new battery. The chip could be permanently damaged by moisture. If the key fob still not working after replacing the battery, it may be necessary to replace the entire key fob. Faulty Receiver Module If your key fob has stopped working after replacing the battery and it didn't help, or if it just stopped working without notice it is possible that your receiver module might have developed an issue. The receiver module is responsible for absorbing the radio frequency signals transmitted by your remote key fob and convert them into electrical signals that are then acted on by other modules in the car. If the receiver module is faulty it will not take any commands from your remote key fob. In this scenario it is necessary for a dealer to reprogram your key fob and install the new receiver. The key fob has been sealed with rubber to prevent water from leaking into the electronic chip. If you immerse your key fob into salty or soapy water, the chips inside could be damaged. If your key fob does not function, you can try cleaning the chip using isopropyl or an electronic cleaner. If G28CarKeys have been paired but the receiver module has developed a fault you can try restarting all of the onboard electronics by disconnecting the 12 volt battery for a few minutes. Connect the battery in reverse (negative cable to positive first). This will reset the on-board electronic circuit and restore their functionality. A malfunctioning electronic chip The key fob is equipped with a chip that transmits the signal from the key 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 starting. If the key fob you purchased does not work and you aren't able to reprogram it, this could be due to an incompatible microchip. The chip in the key fob is not permanent to the device, and might need 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 using a pin needle to make contact with each of the metal retaining clips. If they are corroded or damaged, you'll have to replace them in order for the remote control to function. Make sure the replacement batteries have the same size, voltage, and specification as the original. The Seat Alhambra is an attractive and well-designed model however, just like any other vehicle, it can sometimes experience problems with specific parts or equipment. Some owners have reported issues with the automatic climate-control system. It is prone to malfunction and be stuck in a specific setting. In the same way, the infotainment system has also been recognized to malfunction and even freeze screens.