Are Seat Keys Replacement As Important As Everyone Says?
Seat Alhambra Key Problems
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There are a myriad of reasons why your key fob may not function properly, such as a dead coin battery, water damage, receiver module problems or signal interference. This article will walk you through the steps to get it back in working order.
Water Damage
If your seat alhambra key fob is able to withstand an wash cycle or bath in the ocean or pool then it is likely to have an amazing waterproof chip. However, do not use it regularly as exposure to excessive water increases the chance of the key fob being damaged. If the key fob ceases to working after exposure to clean water from the tap or rain, then just remove the battery, wipe the electronic component with a towel and allow it to dry completely before putting it back in. If the key fob has been exposed to salty or soapy water and salty water, it is recommended you clean the chip with isopropyl or electronic cleaner.
Faulty Receiver Module
If you've tried an entirely new battery for your button and the key fob still isn't locked or unlocking, it is likely that the receiver module has developed a fault. The positive side is that this is a relatively simple and affordable fix, you can disconnect the 12 volt battery for just a few minutes (first take off the negative cable and then press the horn button a few times) to remove any remaining electricity, and then connect it in reverse order e.g. positive cable first then negative.
ESP Warning Light - If the ESP warning symbol flashes this is normal and signifies that the car is travelling through terrain that has traction issues between the road surface and tyres isn't ideal, like snow, gravel or lots of surface water. If the ESP warning light is continuously shining, it is a sign that there is a fault within the system. It should be diagnosed using a iCarsoft i908 Seat OBD Code Reader which will give you a specific fault description.
Dead Coin Battery
A dead coin battery is among the most common reasons for the seat alhambra keys to cease to function. The key fob contains an insignificant button cell battery that keeps it powered. It should be replaced with a replacement that is the same size, voltage, and specification as the original. When replacing the battery on the key fob remove all metal clips and ensure that the contacts of the key fob are free of corrosion and clean.
If the key fob has been exposed water, such as rain or soapy water 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 could be permanently damaged by moisture. If the key fob still not working after replacing the battery, it may be necessary to replace the entire key fob.
Faulty Receiver Module
If your key fob has stopped working after you replaced the battery and it didn't help, or if it stopped working completely without notice the receiver module could have developed a fault. The receiver module is responsible to receive the radio frequency signals sent by your remote key fob, and changing them into electrical signals that are then acted on by other modules within the car.
If the receiver module is damaged it will not be able to accept any commands from your remote key fob. In this case, you will need to visit a dealer to reprogram the key fob, and also a new receiver module.
The key fob is fitted with rubber seals that prevent water from getting into the chip inside. However, if you submerge your key fob into soapy water or salty ocean water, the chips inside may be damaged. If your key fob won't function, you can try cleaning the chip with isopropyl or an electronic cleaner.
If the keys have been successfully paired, but your receiver module isn't working then you can restart all of the electronics on board by disconnecting the battery at 12 volts for few minutes. Then reconnect the battery in reverse order (negative cable first and then positive). This will reset the on-board electronic circuit and restore their functionality.
A malfunctioning electronic chip
The key fob contains an electronic chip that transmits a signal to the receiver module whenever the key is used. If G28 Car Keys does not match the one recorded by the car the immobilizer will stop the engine and stop the vehicle from beginning. However, if the fob is not working and you are not able to reprogram it the issue could be due to a faulty chip.
The chip in the key fob may need to be changed to make it work again. This can be accomplished by getting the key fob removed from its housing, and then using a needle or pin to touch each metal clip. You will have to replace them in the event that they have been damaged or corrosion-prone. Make sure that the replacement batteries are the same voltage, size and specification as the original one.
Seat Alhambra is a popular and well-designed model, could be a bit troublesome with certain parts or components. Some owners have reported problems with the automatic climate-control system. It is prone to malfunction and become stuck in a specific setting. In the same way, the infotainment system has also been recognized to malfunction and even freeze screens.