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 available it's even more impressive.
There are a variety of reasons why the key fob could not function properly, such as a dead coin battery or damage to the receiver module, water issues or signal interference. This article will walk you through the steps necessary to get it working.
Water Damage
If your seat alhambra key fob is able to withstand the wash cycle or a bath in the ocean or pool then it is likely to have an incredible waterproof chip, but do not make it a habit because prolonged exposure to water increases the chance of the key fob becoming damaged. If the key fob stops working after exposure to clean tap water or rain, then just remove the battery, wipe the electronic component with paper towel and allow it to dry completely before putting it back into. If you are exposed to soapy water or salt, it is recommended to wash 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've replaced the button cell battery it could be that the receiver module is suffering from an issue. It's a simple and cheap fix. You can unplug the 12 volts battery for a couple of minutes (first remove negative cable, then press the horn several times) in order to drain any remaining electricity. Then connect it in reverse. positive cable first and then negative cable later.
ESP Warning Light - If the ESP symbol is flashing, this is normal. It indicates that you are driving over terrain with poor traction. This could be due to snow, gravel or surface water. If the ESP warning light is constantly illuminated it indicates that there is a fault within the system and should be detected using an iCarsoft i908 Seat OBD Code Reader kit that will provide you with a specific fault description.
Dead Coin Battery
A dead battery for the coin is one of the most frequent causes for the seat alhambra keys to cease to function. The key fob contains tiny button cell batteries that keeps it running. Replace it with a new battery with the same voltage, size and specification 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 in good condition and free of corrosion.
If the key fob was exposed to water, like soapy or rain it is recommended to take the battery off and clean the electronic chip using isopropyl alcohol or a electronic cleaner prior to putting in the new battery. The chip could 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 but it did not help, or if it stopped working completely suddenly, then your receiver module may have developed an issue. The receiver module takes the radio frequency signals from your key fob's remote and transforms them into electrical signals that are then followed by other modules inside the car.
If the receiver module is defective it will not be able to accept any commands from your remote key fob. In this situation it is necessary for a dealer to reprogram your key fob and install a new receiver.
The key fob is covered by rubber to block water from leaking into the electronic chip. However, if you submerge your key fob in salted or soapy ocean water, the chip inside could be damaged. You can attempt to clean the chip by applying isopropyl alcohol or electronic cleaner, but in the event that your key fob isn't working after all this, you'll have to purchase a new one.

If the keys are paired but the receiver module has developed a fault, you can try rebooting all of the electronics on board by removing the battery at 12 volts for a few minutes. Connect the battery in reverse (negative cable to positive first). This will reset the on-board electronic and restore their functionality.
Faulty electronic chip
The key fob is equipped 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 match the one recorded by the car the immobilizer is able to shut off the engine and prevent the vehicle from beginning. If seat keys g28carkeys.co.uk fob isn't working, and you cannot reprogram it, it could be due to a faulty chip.
The chip inside the key fob could need to be changed in order to get it working again. The best method to do this is by removing the key from its housing and using a pin needle to make contact with each of the metal retaining clips. If the clips are corroded, or broken, you will require replacement in order for the remote control to function. Make sure that the replacement batteries are the same size, voltage and specifications as the original.
The Seat Alhambra is a well-designed and popular car however, like all cars it can occasionally experience issues with specific parts or equipment. For example some owners have encountered issues with the automatic climate control system, which could malfunction and cause problems in one particular setting. The infotainment system may also fail and freeze the screens.