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Seat Alhambra Key Problems Seat's Jumbo MPV family is among the best in its class when it comes to resales value. With a new model on sale the family MPV jumbo is more impressive. There are many reasons that the key fob may not function properly including dead coin battery damage to the receiver module, water issues, or signal interference. This article will guide you through the steps to get it back in working order. Water Damage If your seat alhambra key fob survives the wash cycle or a bath in the pool or ocean then it's probably equipped with an incredible waterproof chip, but do not use it regularly since exposure to excessive water increases the chance of the key fob being damaged. If the key fob ceases to working after exposure to clean tap water or rain, simply take out the battery, wipe the electronic component with paper towel and allow it to dry completely before putting it back in. If the key fob has been exposed to soapy or salty water and salty water, it is recommended you clean the chip using isopropyl or an electronic cleaner. Faulty Receiver Module If you have tried a new battery for a button and the key fob does not lock or unlock, it is likely that the receiver module has developed a fault. It's a relatively simple and cheap fix. You can disconnect the battery with 12 volts for a few minutes (first remove the negative cable and then press the horn a few times) to remove any remaining power. After that, you can reconnect it in reverse. Positive first, then negative. ESP Warning Light – If the ESP symbol blinks, it is normal. It is a sign that you're driving on terrain that has poor traction. This could be caused by snow, gravel or surface water. If the ESP warning light continues to be blinking, it indicates that there is an error within the system. This can be detected using an iCarsoft i908 Seat OBD Code Reader kit that will provide a precise fault description. Dead Coin Battery A dead battery for the coin is one of the most common reasons for the keys for the seat to cease to function. The key fob contains a tiny button cell battery that keeps it powered. It should be replaced with a new one that is the same size, voltage, and specification as the original. When replacing the battery on the key fob remove the metal clips and make sure that the contacts on the key fob are clean and corrosion-free. If the key fob has been exposed water, such as soapy or rain it is recommended to take the battery off and clean the electronic chip using alcohol or an electronic cleaner prior to inserting the new battery. The chip is sensitive to moisture and may be permanently damaged. If G28 is still not working after replacing the battery, it might be necessary to replace the entire key fob. Faulty Receiver Module If your key fob stopped working after you replaced the battery but it did not help, or if it stopped working completely suddenly the receiver module might have developed an issue. The receiver module is responsible to receive the radio frequency signals that are sent by your remote key fob, and changing them into electrical signals that are then utilized by other modules in your car. If the receiver module is defective, it will not accept any commands from your remote key fob. In this situation the dealer will have to reprogramme the key fob, and also install an additional receiver. The key fob features rubber seals that block water from getting into the electronic chip inside. If you dip the key fob in salty or soapy water, it could cause damage to the chip. If your key fob does not work, try cleaning the chip using isopropyl or electronic cleaner. If the keys are paired but the receiver module has developed a fault you can try rebooting all the on-board electronics by disconnecting the battery at 12 volts for a few minutes. Then, reconnect the battery in reverse order (negative cable first, then positive). This will reset the on-board electronic and restore their functionality. Electronic Chip Faulty The key fob is equipped with a small electronic chip that transmits a signal to the receiver module every time the key is used. If the signal isn't in line with the one that the car has stored the immobilizer is disabled and prevent the vehicle starting. However, if the fob isn't functioning and you are unable to reprogram it, it could be due to a malfunctioning chip. The chip inside the key fob may need to be changed in order to make it function properly. The best way to do this is by removing the key from its housing and using a pin needle to contact each of the metal retaining clips. You will require replacement when they're damaged or corrosion-prone. Make sure that any replacement batteries have the same size, voltage, and specification as the original. The Seat Alhambra is a well-designed and popular model however, like all cars it is not without its challenges. issues with specific components or equipment. A few owners have reported issues with the automatic climate control system. It is prone to malfunction and become stuck in a certain setting. The infotainment system can also fail and freeze the screens.