A Complete Guide To Seat Keys Replacement Dos And Don'ts

Seat Alhambra Key Problems

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There are a myriad of reasons the key fob won't perform as it should, including an inoperative coin battery or water damage to the receiver module or signal interference. This article will walk you through the steps necessary to make sure it works.

Water Damage

If your seat leon car key alhambra key fob is able to withstand washing cycles or a bath in the ocean or pool it's likely to have an incredible waterproof chip, but do not make it a habit as exposure to excessive water increases the chance of the key fob getting damaged. If your key fob stops functioning after exposure to rain or clean tap water, remove the battery and clean the electronic component with a paper towel. Allow it to dry completely before replacing the battery. In the event of exposure to soapy or salty water, it is recommended to clean the chip with isopropyl alcohol or electronic cleaner before attempting to put the battery back in.

Faulty Receiver Module

If the key fob does not lock or unlock after having replaced the battery for the button It is possible that the receiver module is suffering from a fault. The good news is that it is an easy repair that is inexpensive, you can simply disconnect the 12 volt battery for just a few minutes (first remove the negative cable and press the horn button a few times) to eliminate any remaining electrical current and then reconnect it in reverse order e.g. Positive cable first followed by negative.

ESP Warning Light If the ESP warning symbol flashes this is normal and indicates that the car is travelling on terrains where the traction between the road surface and the tyres isn't optimal, such as snow, gravel or lots of surface water. If the ESP warning light continues to be blinking, it indicates that there is a glitch in the system. It is best to be detected with a iCarsoft i908 Seat OBD Code Reader kit which will give you a specific fault description.

Dead Coin Battery

A dead coin battery is one of the most frequent reasons for the seat alhambra keys to stop working. The key fob is powered by a small button cell battery that keeps it running. Replace it with a new battery that is the same size, voltage and specifications 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 contacts are clean and free of corrosion.

If the key fob has been exposed to water, such as rain or soapy water, it's recommended that you remove the battery and clean the electronic chip using alcohol isopropyl or an electronic cleaner prior to putting in the new battery. The chip can be permanently damaged by moisture. If the key fob still not working after replacing the battery, it could be necessary to replace the entire key fob.

Faulty Receiver Module

If your key fob stopped working after replacing the battery, but it didn't help, or it stopped working completely without notice it is possible that your receiver module could have developed an issue. The receiver module receives the radio frequency signals from the remote keyfob and converts them into electrical commands that 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 scenario the dealer will have to reprogramme the key fob and install a new receiver.

The key fob has been sealed with rubber to stop water from getting inside the electronic chip. If you dip the key fob into salty or soapy water it could damage the chip. If your key fob doesn't work, you could try cleaning the chip with isopropyl or electronic cleaner.

If the keys have been paired but the receiver module has developed a fault you can try rebooting all of the onboard electronics by disconnecting the battery with 12 volts for a short period of time. Connect the battery in reverse (negative cable to positive first). This resets all the electronic components on board and restore their functionality.

Faulty Electronic Chip

The key fob has a small electronic chip that transmits a message to the receiver module each time the key is used. If the signal isn't in line with the one that the car has stored the immobilizer will be disabled and prevent the vehicle from starting. If the key fob doesn't work and you aren't able to reprogram it, this could be due to an issue with the microchip.

The chip inside the key fob isn't a permanent part of the device and may need to be replaced to function again. The best way to do this is to remove the key from its housing and using a pin or needle to get into contact with each of the clips made of metal. You'll require replacement when they're damaged or corrosion-prone. Make sure any replacement batteries have the same size, voltage and specifications as the original.

Seat Alhambra is a popular and well-designed car, can have problems with certain components or equipment. For instance there are owners who have had issues with the automatic climate control system, which could become faulty and stuck in one specific setting. Additionally, the infotainment feature has also been recognized to malfunction and even freeze screens.