Seat Alhambra Key Problems
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There are many reasons why the key fob might not work as expected, including an inoperative coin battery water damage to the receiver module or signal interference. This article will walk you through the steps needed to make it work again.
Water Damage
If your key fob for the seat Alhambra is able to withstand an wash cycle, a dip in the ocean or in a pool, then it's got a waterproof chip. But, you shouldn't do this often because prolonged exposure to water can increase the risk of the key fob becoming damaged. If your key fob stops working after exposure to rain or clean tap water, unplug the battery and clean the electronic component with a towel. Let it dry completely before replacing the battery. If the battery is exposed to salt or soapy water it is recommended that you clean the chip with alcohol, isopropyl or electronic cleaner before attempting to put the battery back in.
Faulty Receiver Module
If you have tried an entirely new battery for your button and the key fob still does not lock or unlock, it's likely that your receiver module has developed a fault. The good news is that it is a fairly easy and cost-effective fix. You can remove the battery 12 volts for just a few minutes (first remove the negative cable and press the horn button numerous times) to eliminate any remaining electric current, then reconnect it in reverse order e.g. positive cable first, then negative.
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 caused by snow, gravel or surface water. If the ESP light is always on, it is a sign that there is a problem in the system. It can be detected with a iCarsoft i908 seat OBD code reader kit. It will provide a detailed fault description.
Dead Coin Battery
A dead coin battery is one of the most common reasons for the seat alhambra keys to stop working. The KeyLab is powered by a tiny button-cell battery. It is recommended to replace it with a new one that has the same voltage, size and specifications as the original. If you are replacing the battery, be sure to remove all metal clips from the back of the key fob. Also ensure that the contacts are free of corrosion.
If the key fob has been exposed water, such as rain or soapy water, it's recommended that you take the battery off and clean the electronic chip with alcohol or an electronic cleaner prior to putting in the new battery. The chip is sensitive to moisture and may be permanently damaged. If the key fob is still not working after replacing the battery, it might be necessary to replace the entire key fob.
Faulty Receiver Module
If your key fob has stopped working after replacing the battery and it did not help, or if it just stopped working suddenly The receiver module may have developed an issue. The receiver module is responsible to receive the radio frequency signals transmitted by your remote key fob, and changing them into electrical signals that are then used by other modules in your car.
If the receiver module is damaged and is not able to take any commands from your remote key fob. In this instance you'll need to visit a dealer to reprogram your key fob and a new receiver module.
The key fob has been sealed by rubber to block water from leaking into the electronic chip. If you submerge the key fob into soapy or salty water, it may damage the chips. If your key fob does not function, you can try cleaning the chip using isopropyl or electronic cleaner.
If the keys are connected but the receiver module has developed a fault you can try restarting all of the onboard electronics by removing the battery with 12 volts for a short period of time. Then, reconnect the battery in reverse order (negative cable first before positive). This resets all the electronic components on board and restore their functionality.
Electronic chip that is malfunctioning
The key fob is outfitted with a tiny chip which transmits a signal from the key to the receiver module every time the key is used. If the signal received does not coincide with the one stored by the car the immobilizer is able to shut off the engine and stop the vehicle from beginning. If the key fob doesn't work and you aren't able to reprogram it, it could be due to a faulty microchip.
The chip in the key fob isn't a permanent part of the device and might have to be replaced to get it working again. The best method to do this is by removing the key from its housing and then using a pin or needle to contact each of the retaining clips made of steel. You'll require replacement if they are damaged or corrosion-prone. Make sure that the replacement batteries are of the same size, voltage and specification as the original one.
Seat Alhambra is a popular and well-designed car, can be troublesome due to certain components or equipment. A few owners have reported issues with the climate control system that is automatic. It may fail and get stuck in a certain setting. Similarly, the infotainment system has also been found to malfunction and cause freeze screens.