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Why a Seat Ibiza Replacement Key Won't Work

A newer generation of driver assist improves the Ibiza to a completely new level. Travel Assist makes sure your vehicle is in sync with traffic flow while Lane Assist takes the worry out of changing lanes.

Take off the cover of the battery compartment on the key fob (A). Utilizing a flat-head screwdriver or a thumb nail, push the cover upwards. Replace the CR2025.

Dead Coin Battery

If your key fob stopped functioning and you're not capable of reprogramming it with a new code, then the most likely cause is a dead battery in the coin. Replacing this should bring it back to life once more - you can do it yourself in less than 10 minutes.

The key is opened from the side without the rings made of metal. There's a clip-on lid that is opened by a lever with your nail. The battery that was used is pushed through the hole at the middle. Note: If read here change the battery in error, or with a battery not suitable, it can cause damage to the remote. Replace the battery with the same size, voltage and specifications as the original.

In the event that your key fob is submerged in water, it could need to clean the chip prior to replacing the battery. This is especially crucial in the event that you've dropped it into the ocean or in soapy washing water. It is essential to take care of this immediately, as water can cause damage to the chip in your key fob's electronic.

Worn Buttons

Seat Ibiza keys stop working the majority of the time often due to the battery that powers the coin is dead. This is easy to fix and can be done in a couple of minutes. The key fob can also stop working if the buttons have worn out. This is another easy fix that requires you to swap the old key shell with a new one.


It is essential to replace the button cell battery in a timely manner, or the key fob might be damaged. It is recommended that you always use a brand new battery of the exact size in terms of voltage, size, and specification. It's important that the polarity is facing up on the new battery.

Rubber seals should keep water out of the key fob. However, submerging the key fob in water can cause the seals to break and cause damage to the electronic chip inside. This is typically the case when your key fob is placed in the rain or drops into the pool. If the key fob does not function after replacing or reprogramming it and the receiver module could be faulty.

Water Damage

Rubber seals on the key fob stop water from getting into the chip. It is not enough to stop the occasional splash. If you've made it through a washing cycle or an ocean dip your chip might be damaged.

This can be fixed by getting rid of the battery and then cleaning the chip using isopropyl ethanol or electronic cleaner. Let it dry completely before returning it. If the chip is damaged, it will need to be replaced with a new one.

If your key fob won't work despite changing the battery or programming, the issue could be with the receiver module. This is the part of the car which receives the signals from the keyfob and sends the signals to the key ignition system. If you have an extra key fob, you can test it. This should cause the ignition system light come on and the central locking activate. If this doesn't happen it is possible that the receiver module could be defective. This is a costly fix but it can be fixed by a professional at your local garage.

Radio Interference

If your car's radio appears to be acting strangely or the key fob is not working, it could be caused by an interference problem with the receiver module inside the key. Seat parts can provide the replacement key that features an entirely new receiver.

To replace the battery, pull off the key piece and using your thumb nail or screwdriver with a flat-headed head, gently push upwards the key fob's compartment cover. Take off the old CR2025 battery and then insert a brand new one, ensuring that it is fitted with the correct the polarity. You can also use a standard key with the transponder chip which was transferred from the worn or damaged key. This can be cut off and coded to your car, if needed.

Faulty Receiver Module

The receiver module is the component in the key fob that transmits the radio signals to your vehicle. If the fob doesn't work it could be because the module is malfunctioning. You can diagnose this using an OBDII scanner tool, or by calling your dealer.

Other devices that operate on the same frequency may interfere with the remote keyless entry system. This can include wireless phone transmitters, electronic devices, and even some household appliances.

If the key fob is exposed to clean tap water, it could be possible for you to clean the chip with paper towels and isopropyl Alcohol. If the key fob is submerged in soapy or salt water, or is sat on a wet floor for long periods, it will most likely result in damage, and it is likely to require replacement.

To replace the battery on your key fob, use the thumb nail or flat-head screwdriver to open the cover of the button cell battery compartment (B). Remove the old battery. Replace it with a brand new CR2025 battery, making sure the "+" side is facing upwards.

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