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How To Outsmart Your Boss With Seat Key
Why a Seat Ibiza Replacement Key Won't Work

The Ibiza is now equipped with the latest generation of driver assistance. Travel Assist ensures that your vehicle keeps pace with traffic while Lane Assist eliminates the stress of changing lanes.

Remove the key fob's battery compartment cover (A). By using a flat-head screwdriver a thumb nail, push the cover upwards, then replace the CR2025.

Dead Coin Battery

If your key fob stopped working and you haven't been capable of reprogramming it with an entirely new code, the most likely culprit is a dead battery in the coin. Replace it and you'll be able to make it functional again - you can do it yourself in less than 10 minutes.

Start by opening the key from the side with no metal rings. There's a simple clip-on lid, that is opened by a lever with your nail. The old battery can then be pulled out through the hole in the middle. Note: Changing the battery improperly or using an unsuitable battery may damage the remote key. Replace the battery with the same size, voltage, and specification as the original.

If your key fob was submerged in water, you might also have to clean the chip prior to replacing the battery. This is particularly crucial when you drop it in the ocean or in soapy wash water. This should be taken care of immediately as exposure to water could damage the chip's electronic circuit and cause the key fob to stop functioning.

Worn Buttons

The most frequent reason that the Seat Ibiza replacement key doesn't work is due to the battery of the coin being dead. This is not a problem and only takes a few minutes. The key fob can also stop working if the buttons are worn out. This is another fix, and requires you to swap the old keyshell for a new one.

It is vital to replace the button cell battery properly, or the key fob may be damaged. It's recommended to always make sure you use a new battery that has the same voltage, size and specifications. It's essential that the polarity is facing upwards on the new battery.

The key fob is secured by rubber seals, which should keep water out. However submerging the key fob in water may cause the seals' to break and harm the electronic chip inside. This is often the case when the key fob is placed in the rain or accidentally drops into the pool. If your key fob still doesn't work even after replacing it or reprogramming, the receiver module could be defective.

Water Damage

The key fob's rubber seals to prevent water getting into the electronic chip inside. However, this doesn't stop the occasional splash or bath. If you've survived a washing cycle or swimming in the ocean the chip could be damaged.

It is possible to fix this by getting rid of the battery and then cleaning the chip using isopropyl alcohol or electronic cleaner. Allow it to dry completely, then put it back. If the chip is fried and needs to be replaced, replace it with a brand new chip.


If your key fob won't function after changing the battery or programming, it could be an issue with the receiver module. This is the part of the car that receives signals from the key fob and transmits signals to the key ignition system. It can be tested by trying the spare key fob if have one. The central locking should activate and the ignition system light should turn on. If it doesn't, the receiver module is not working properly. This is a costly fix however it can be repaired by an expert at your local garage.

Radio Interference

If your car's radio appears to be acting strangely or the key fob not working, it could be due to an interference issue with the receiver module within the key. Seat parts can offer a replacement key that has an entirely new receiver.

To replace the battery, flip out the key part and then using your thumb nail or a flat head screwdriver gently prise upwards the key fob's battery compartment cover. Remove the old CR2025 battery and replace it with a new one, making sure it has the proper the polarity. You can also make use of an ordinary key that has transponder chip before on a worn or damaged key. This can be coded and cut to fit your car in the event that it is needed.

Faulty Receiver Module

The receiver module in the fob that you have in your keys transmits radio signals to the car. If the fob doesn't work it could be because the module has become defective. You can diagnose this using an OBDII scanner device or by reaching out to your dealer.

The remote keyless entry system is susceptible to interference from other devices operating on the same frequency. TheKeyLab could include mobile phones, electrical devices and even household appliances.

If the fob is exposed clean tap water, it might be possible to clean the electronic chip using paper towels and isopropyl ethanol. If the key fob is submerged in soapy or salt water, or sat on a wet floor for prolonged periods, this is likely to result in damage, and it is likely to require replacement.

To change the battery in your key fob you will need the thumb nail or screwdriver that has a flat head to break open the cover of the button cell battery compartment (B). Remove the old battery and insert an CR2025 replacement battery, making sure the "+" polarity is facing upwards.