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Seat Alhambra Key Problems Seat's jumbo family MPV is among the top in the market in terms of conserving resale value. With a new model currently on sale the family MPV jumbo is more impressive. There are a variety of reasons why your key fob could not function properly including dead coin battery, water damage, receiver module issues, or signal interference. This article will guide you through the steps to get it back in working order. Water Damage If your key fob for the seat alhambra survives the wash cycle or a dip in the ocean or in a pool, then it has a waterproof chip. But be careful not to do this often since prolonged exposure to water increases the likelihood that the key fob will be damaged. If your key fob stops working after exposure to rain or clean tap water, unplug the battery and wipe the electronic component with 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 electronic cleaner. Faulty Receiver Module If the key fob will not lock or unlock even after you've replaced the battery of the button it is possible that the receiver module has a fault. It is a relatively easy 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 electricity. After that, you can reconnect it in reverse. Positive first followed by negative. ESP Warning Light – If the ESP symbol blinks, it is normal. It is a sign that you are driving on terrain with poor traction. This could be caused by snow, gravel or surface water. If the ESP light is always on, it indicates that there is a problem with the system. This can be diagnosed by using an iCarsoft i908 seat OBD code reader kit. It will give you detailed information about the fault. Dead Coin Battery One of the most common reasons for the seat alhambra key not functioning is a dead coin battery. The key fob is powered by a small button-cell battery. Replace it with a brand new battery that has the same dimensions, voltage and specs as the original. If you are replacing the battery, be sure to remove all metal retaining clips from the back of the key fob. Also, make sure that the contact points are clean and free of corrosion. If the key fob was exposed to water (such as rain or soapy tap water) it is recommended to remove and clean the chip with an electronic cleaner or isopropyl alcohol prior to installing a new battery. The chip is sensitive to moisture and may be permanently damaged. If the key fob does not work after replacing the battery, it could be necessary to replace the key fob. Faulty Receiver Module If your key fob stopped functioning after replacing the battery, but it did not work, or stopped working in a sudden manner, your receiver module could have encountered a problem. The receiver module is able to receive radio frequency signals from the remote keyfob and transforms them into electrical signals which are then acted upon by other modules within the car. If the receiver module has developed a fault and is unable to respond to any of the commands sent by your remote key fob. In this scenario the dealer will have to reprogramme the key fob and install the new receiver. The key fob has been sealed with rubber to keep water from entering the electronic chip. However, if you submerge your key fob in the ocean's salty or soapy water, the chips inside could be damaged. You can attempt to clean the chip by applying isopropyl alcohol or electronic cleaner, however in the event that your key fob isn't working after all this, you'll have to buy a new one. If the keys are paired, but the receiver module isn't working it is possible to restart all the electronics in the board by disconnecting the battery at 12 volts for couple of minutes. Then, reconnect the battery in reverse order (negative cable first before positive). This will reset all the electronics onboard and will bring them back into operation. Electronic chip that is malfunctioning The key fob contains a small electronic chip that sends a signal to the receiver module when the key is used. If the signal isn't in line with the one the car has stored the immobilizer will turn off and stop 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 faulty chip. The chip in the key fob isn't an irreplaceable part of the device and might have to be replaced to get it to work again. This can be accomplished by taking the key fob out of its housing, and using a needle or pin to connect with each metal retaining clip. If these are corroded or broken, you will have to replace them to allow the remote control to function. Make sure the replacement batteries have the same voltage, size, and specification as the original. The Seat Alhambra is a well-designed and popular model however, just like any other vehicle, it can sometimes experience issues with specific parts or equipment. Some owners have reported problems with the auto climate control system. seat car key replacement G28 can fail and get stuck in a certain setting. In the same way, the infotainment system has also been reported to malfunction and freeze screens.