5 Seat Keys Replacement-Related Lessons From The Professionals
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There are a variety of reasons why the key fob might not work properly, including a dead battery water damage, receiver module problems or signal interference. This article will guide you through the steps needed to get it back in working order.
Water Damage
If your seat alhambra key fob is able to withstand washing cycles or a bath in the ocean or pool then it probably has an amazing waterproof chip but don't make this a habit because exposure to water in excess increases the risk of the key fob getting damaged. If your key fob ceases to functioning after exposure to rain or clean tap water, unplug the battery and wipe the electronic component with a towel. Let it dry completely before replacing the battery. If the key fob has been exposed to salty or soapy water it is recommended that you clean the chip using isopropyl or electronic cleaner.
Faulty Receiver Module
If you have tried a new button cell battery and the key fob cannot be locked or unlocked, it's likely the receiver module has discovered a problem. The positive side is that this is a fairly easy repair that is inexpensive, you can disconnect the 12 volt battery for about a couple of minutes (first take off the negative cable and press the horn button numerous times) to remove any remaining electric current, then reconnect 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 traveling on terrain where the traction of the road surface and the tyres isn't ideal, such as snow, gravel or a lot of surface water. If the ESP light is constantly on, it is a sign that there is a fault in the system. This can be diagnosed by using an iCarsoft i908 seat OBD code reader kit. It will provide an in-depth description of the fault.
Dead Coin Battery
A dead coin battery is among the most frequent reasons for the seat alhambra keys to stop working. The key fob has a small button cell battery that keeps it running. Replace it with a new battery that has the exact dimensions, voltage and specs as the original. When replacing the battery on the key fob remove the metal clips and make sure that the contacts on the key fob are clean and corrosion-free.
If the key fob was exposed to water (such as soapy 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 susceptible to moisture and could be permanently damaged. If the key fob still doesn't function after replacing the battery, it might be necessary to replace the key fob.
Faulty Receiver Module
If your key fob has stopped working after replacing the battery but it didn't help, or if it suddenly stopped working suddenly the receiver module might have developed an issue. The receiver module is responsible for absorbing the radio frequency signals that are sent by your remote key fob and converting them into electrical commands which are then processed 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 situation you will require a dealer to reprogramme your key fob, and also install an additional receiver.
The key fob is sealed with rubber to stop water from getting into the electronic chip. If you submerge the key fob into salty or soapy water it could cause damage to the chip. It is possible to clean the chip by using isopropyl Alcohol to rub it or electronic cleaner, however in the event that your key fob doesn't work after doing this, you'll have to buy a new one.
If the keys are in a pair but the receiver module has developed a fault you can try to reboot all the on-board electronics by disconnecting the battery with 12 volts for a short period of time. Then reconnect the battery in reverse order (negative cable first before positive). This will reset the onboard electronic and restore their functionality.
Electronic Chip Faulty
The key fob houses an electronic chip which transmits a signal the receiver module each time the key is used. If the signal isn't in line with the one the car has stored the immobilizer will be disabled and stop the car from starting. If the key fob won't work and you aren't able to reprogram it, it could be because of a malfunctioning microchip.
The chip in the key fob isn't a permanent part of the device and could need to be replaced in order to function again. The best method to do this is by removing the key from its housing and then using a pin needle to contact each of the metal clips that hold it. You'll need to replace these if they are damaged or corrosion-prone. Make sure that any replacement batteries are of the same voltage, size, and specification as the original.
Seat Alhambra is a popular and well-designed model, could be troublesome due to certain components or equipment. For example there have been reports of owners experiencing issues with the automatic climate control system, which could become faulty and stuck in a specific setting. Additionally, the infotainment feature has also been found to malfunction and cause freeze screens.