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Seat Alhambra Key Problems Seat's jumbo MPV family is among the top in its class when it comes down to resale values. And with a brand new model now available it's even more impressive. There are a myriad of reasons why the key fob could not function properly including dead coin battery damage to the receiver module, water problems or signal interference. This article will walk you through the steps needed to get it working again. Water Damage If your key fob for the seat Alhambra is able to withstand washing cycles or a dip in the ocean or in a pool, then it's equipped with a waterproof chip. But don't do this often, as prolonged exposure to water increases chances that the key fob will be damaged. If the key fob stops functioning after exposure to clean water from the tap or rain, then just remove the battery, wipe the electronic component with paper towel and let it dry completely before putting it back into. In the event of exposure to soapy or salty water it is recommended to clean the chip with alcohol, isopropyl or electronic cleaner prior to trying to put the battery back in. Faulty Receiver Module If the key fob will not lock or unlock after having replaced the button cell battery It is possible that the receiver module has an issue. The good news is that this is a simple and affordable fix, you can simply disconnect the battery for a few minutes (first remove the negative cable, then press the horn button a few times) to drain any residual electricity and then reconnect it in reverse order e.g. positive cable first, then negative cable later. ESP Warning Light – If the ESP symbol is flashing, this is normal. It is a sign that you're driving on terrain that has poor traction. This could be due to gravel, snow or surface water. If the ESP warning light is constantly blinking, it indicates that there is an error within the system. It is best to be identified using an iCarsoft i908 Seat OBD Code Reader kit which will provide a precise fault description. Dead Coin Battery A dead coin battery is among the most frequent causes for the seat alhambra keys to cease to function. The key fob comes with tiny button cell batteries which keeps it powered. Replace G28 Car Keys with a brand new battery that is the same dimensions, voltage and specs as the original. If you're replacing the battery be sure to remove all metal retaining clips from the back of the key fob and make sure the contacts are free of corrosion. 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 isopropyl alcohol before installing a new battery. The chip may be permanently damaged by moisture. If the key fob is still not working after replacing the battery, it may be necessary to replace the entire key fob. Faulty Receiver Module If your key fob stopped working after you replaced the battery and it didn't help, or if it suddenly stopped working in a sudden manner The receiver module might have developed an issue. The receiver module is responsible to receive the radio frequency signals sent by your remote key fob, and convert them into electrical signals that are then utilized 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 scenario it is necessary for a dealer to reprogramme your key fob, and also install a new receiver. The key fob features rubber seals that block water from entering the electronic chip inside. If you submerge the key fob into salty or soapy water, it could damage the chip. You can try to clean the chip by rub it with isopropyl alcohol or electronic cleaner, but in the event that your key fob isn't working after all this, you'll have to buy a new one. If the keys have been paired but the receiver module has developed a fault you can try restarting all of the onboard electronics by removing 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 circuits and restore their functionality. A malfunctioning electronic chip The key fob comes with a small chip that transmits an indication from the key to the receiver module every time the key is used. If the signal doesn't match the one that the car has stored, the immobilizer will disable and stop the car from starting. If the key fob won't function and you are not able to reprogram it, this could be due to an incompatible microchip. The chip in the key fob could need change to make it work again. This can be accomplished by taking the key fob out of its housing and using a needle or pin to touch each metal clip. If the clips are corroded, or damaged, you'll 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 specifications as the original. The Seat Alhambra is an attractive and well-designed model however, just like any other vehicle it is not without its challenges. issues with certain components or equipment. There have been reports of problems with the automatic climate control system. It may malfunction and be stuck in a certain setting. The infotainment system could also malfunction and cause freezes on the screens.