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Seat Alhambra Key ProblemsSeat's Jumbo MPV family is among the best in its class when it comes down to resales values. With a brand new model on sale the jumbo family MPV is even more impressive.There are many reasons why the key fob may not function properly, such as an unresponsive coin battery or water damage to the receiver module or signal interference. This article will guide you through the steps to fix it.seat key fob replacementIf your seat alhambra key fob can withstand the wash cycle or a bath in the ocean or pool then it's probably equipped with an amazing waterproof chip but do not make it a habit since exposure to excessive water increases the chance of the key fob being damaged. If your key fob ceases to working after exposure to rain or clean tap water, you should remove the battery and wipe the electronic component using a towel. Allow it to dry completely before replacing the battery. If the key fob has been exposed to salty or soapy water it is recommended that you clean the chip using isopropyl or an electronic cleaner.Faulty Receiver ModuleIf the key fob will not lock or unlock after you've replaced the button cell battery, it is possible that the receiver module has a fault. It is a relatively easy and cost-effective fix. It is possible to disconnect the 12 volts battery for a couple of minutes (first take off the negative cable, then press the horn numerous times) to remove any remaining power. Then, reconnect it in reverse. Positive cable first, then negative.ESP Warning Light - If the ESP warning symbol flashes this is normal and indicates that the car is traveling over terrain where the traction between the road surface and tyres isn't optimal, like gravel, snow or lots of surface water. If the ESP light is constantly on, it indicates that there is a fault in the system. This can be identified with a iCarsoft i908 seat OBD code reader kit. It will provide you with a an in-depth description of the fault.Dead Coin BatteryA dead coin battery is one of the most frequent causes for the seat alhambra keys to stop working. The key fob is powered by a tiny button cell battery which keeps it powered. It should be replaced with a new one 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 on the key fob are in good condition and free of corrosion.If the key fob was exposed to water, like soapy or rain it is recommended to take the battery off and clean the electronic chip using alcohol or an electronic cleaner prior to putting in the new battery. The chip is sensitive to moisture and could be permanently damaged. If the key fob is still not working after replacing the battery, it could be necessary to replace the entire key fob.Faulty Receiver ModuleIf your key fob has stopped working after replacing the battery but it didn't perform, or suddenly stopped working the receiver module may be experiencing a problem. 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 which are then processed by other modules in your car.If the receiver module is defective and is not able to take any commands from your remote key fob. In this instance, a dealer will need to reprogramme your key fob and install the new receiver.The key fob is fitted with rubber seals that stop water from getting into the electronic chip inside. If you immerse the key fob into salty or soapy water, it could damage the chip. It is possible to clean the chip by rubbing it with isopropyl alcohol or electronic cleaner, but If your key fob isn't working after all this, then you'll need to buy a new one.If the keys are connected but the receiver module has developed a fault, you can try to reboot all the on-board electronics by removing the 12 volt battery for a few minutes. Connect the battery in reverse (negative cable to positive first). This will reset all the electronics onboard and will bring them back to their original functionality.Faulty electronic chipThe key fob is equipped with a tiny 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 recorded by the car the immobilizer will shut down the engine and stop the vehicle from starting. If the key fob doesn't work and you are unable to reprogram it, this could be due to a faulty microchip.The chip inside the key fob is not a permanent part of the device and might have to be replaced to make it work again. This can be done by removing the key fob from its housing and using pins or needles to touch each metal clip. If these are corroded or damaged, you'll have to replace them in order for the remote control to function. Make sure that any replacement batteries have the same voltage, size, and specification as the original.The Seat Alhambra is a well-designed and popular car however, just like any other vehicle, it can sometimes experience problems with specific parts or equipment. For instance some owners have encountered problems with the automatic climate control system, which can malfunction and cause problems in one specific setting. Additionally, the infotainment feature has also been known to malfunction and freeze screens.