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seat car key Seat's family MPV jumbo is one of the best in the class in terms of keeping resales value. And with a new generation model on sale it's even better. There are many reasons why the key fob might 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 get it working. Water Damage If your key fob for the seat alhambra can withstand the wash cycle, a dip in the ocean or a pool then it has a waterproof chip. But don't do this often as excessive exposure to water can increase the likelihood of the key fob being damaged. If your key fob stops functioning after exposure to rain or clean tap water, unplug the battery and clean the electronic component using a paper towel. Dry it completely before replacing the battery. In case of exposure to soapy water or salt, it is recommended to clean the chip with isopropyl alcohol or an electronic cleaner prior to attempting to insert the battery back in. Faulty Receiver Module If the key fob will not lock or unlock after you have replaced the button cell battery it is possible that the receiver module has an issue. The good thing is that this is a relatively simple and cost-effective fix. You can just remove the battery 12 volts for just a few minutes (first take off the negative cable and press the horn button a few times) to drain any residual electricity and then reconnect it in reverse order e.g. positive first, then negative. ESP Warning Light – If the ESP symbol is illuminated, this is normal. It is a sign that you are driving on terrain with poor traction. This could be due to gravel, snow or surface water. If the ESP warning light remains blinking, it indicates that there is a problem within the system. This can be detected using an iCarsoft i908 Seat OBD Code Reader kit that will give you a specific fault description. Dead Coin Battery One of the most frequent reasons for the seat alhambra key to stop functioning is a dead coin battery. The key fob comes with tiny button cell batteries that keeps it powered. It should be replaced with a brand new one that has identical in size, voltage and specifications as the original. When replacing the battery on the key fob remove the metal clips and make sure that the contacts of the key fob are clean 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 using an electronic cleaner or isopropyl ethanol before installing a brand new battery. The chip is sensitive to moisture and could be permanently damaged. If the key fob doesn't work after replacing the battery it might be necessary to replace the key fob. Faulty Receiver Module If your key fob stopped functioning after replacing the battery, but it did not perform, or suddenly stopped working your receiver module might have developed a problem. The receiver module is responsible for absorbing the radio frequency signals that are sent 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 accept any commands from your remote key fob. In this scenario you will require a dealer to reprogram your key fob and install the new receiver. The key fob is fitted with rubber seals that stop water from entering the electronic chip inside. However, if you submerge your key fob in the ocean's salty or soapy water, the chips inside may be damaged. If your key fob won't work, you could try cleaning the chip using isopropyl or an electronic cleaner. If the keys have been connected, but the receiver module isn't working then you can restart all the electronics that are on board by disconnecting the battery with 12 volts for a couple of minutes. Then, reconnect the battery in reverse order (negative cable first before positive). This will reset the onboard electronic circuit and restore their functionality. Faulty Electronic Chip The key fob is outfitted with a small chip that transmits a signal from the key to the receiver module every time the key is used. If the signal doesn't coincide with the one stored by the car, the immobilizer will disable the engine and prevent the vehicle from starting. If the key fob won't work and you aren't able to reprogram it, this could be because of a faulty microchip. The chip in the key fob is not a permanent part of the device and might have to be replaced to function again. This can be done by removing the key fob from its housing and using a needle or pin to contact each metal retaining clip. You'll have to replace them when they're damaged or damaged by corrosion. Make sure that the replacement batteries are of the same size, voltage, and specification as the original. Seat Alhambra is a popular and well-designed car, can have issues with specific parts or equipment. Some owners have reported problems with the automatic climate-control system. It could fail and get stuck in a particular setting. The infotainment systems can also fail and freeze the screens.