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Seat Alhambra Key Problems Seat's family MPV jumbo is one of the best in class when it comes to retaining resale value. And with a new model available it's even more impressive. There are many reasons why the key fob might not function correctly, including dead battery or water damage, receiver module problems or signal interference. seat leon key replacement will walk you through the steps to make sure it works. Water Damage If your seat alhambra key fob is able to withstand a wash cycle or a bath in the pool or ocean then it is likely to have an amazing waterproof chip but don't make this a habit because exposure to water in excess increases the chance of the key fob being damaged. If your key fob stops functioning after being exposed to rain or clean tap water, you should remove the battery and clean the electronic component using a paper towel. Allow it to dry completely before replacing the battery. If the key fob has been exposed to soapy or salty water it is recommended you clean the chip using isopropyl or an electronic cleaner. Faulty Receiver Module If the key fob does not lock or unlock after having replaced the button cell battery It is possible that the receiver module has a fault. The positive side is that this is a fairly easy repair that is inexpensive, you can simply disconnect the 12 volt battery for just a few minutes (first take off the negative cable then press the horn button multiple times) to drain any residual electricity, and then connect it in reverse order e.g. Positive cable first, then negative. ESP Warning Light – If the ESP warning light flashes, this is normal and means that the car is travelling on terrain in which the traction between the road surface and tyres is not ideal like snow, gravel or a lot of surface water. If the ESP light is constantly on, it is a sign that there is a problem in the system. It can be detected by using an iCarsoft i908 seat OBD code reader kit. It will give you an in-depth description of the fault. Dead Coin Battery A dead battery for the coin is one of the most frequent causes for the seat alhambra keys to cease to function. The key fob has a tiny button cell battery that is able to keep it powered. Replace it with a new battery with the same dimensions, voltage and specs 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 free of corrosion and clean. If the key fob was exposed to water (such as soapy tap water), it is recommended that you remove and clean the chip with an electronic cleaner or isopropylethanol before installing a brand new battery. The chip can be permanently damaged by moisture. If the key fob 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 replacing the battery and it did not help, or it stopped working completely out of the blue The receiver module could have developed a fault. The receiver module is responsible for receiving the radio frequency signals sent by the remote key fob and transform them into electrical commands that are then utilized by other modules within the car. If the receiver module is faulty, it will not accept any commands from your remote key fob. In this situation it is necessary for a dealer to reprogram your key fob, and also install a new receiver. The key fob features rubber seals that prevent water from getting into the electronic chip inside. If you immerse your key fob into the ocean's salty or soapy water, the chip inside could be damaged. You can attempt to clean the chip by applying isopropyl alcohol or electronic cleaner, but should your key fob isn't working after all this, you'll have to buy a new one. If the keys are connected but the receiver module has developed a fault, you can try rebooting all electronics on board by removing the 12 volt battery for a short period of time. Then reconnect the battery in reverse order (negative cable first followed by positive). This will reset the on-board electronic and restore their functionality. Electronic Chip Faulty The key fob is fitted with a chip that transmits an indication from the key to the receiver module each time the key is used. If the signal received does not match the one recorded by the car the immobilizer is able to shut off the engine and prevent the vehicle from starting. However, if the fob isn't working, and you are not able to reprogram it the issue could be due to a malfunctioning chip. The chip inside the key fob might need to be changed in order to get it working again. This can be done by getting the key fob removed from its housing, and using a needle or pin to make contact with each metal retaining clip. If these are corroded or broken, you will need to replace them in order for the remote control to function. Make sure that any replacement batteries are of the same size, voltage, and specification as the original. The Seat Alhambra is a well-designed and popular car but like any other car, it can sometimes experience issues with particular components or equipment. A few owners have reported issues with the auto climate control system. It can fail and get stuck in a particular setting. The infotainment system may also fail and cause freezing of the screens.