17 Signs That You Work With Seat Key Why a Seat Ibiza Replacement Key Won't Work

The Ibiza is now equipped with the latest generation of driver assistances. Travel Assist makes sure your vehicle is keeping up with traffic, while Lane Assist takes the worry out of changing lanes.

Remove the key fob's cover for the battery compartment (A). Utilizing a flat-head screwdriver or a thumb nail, pry the cover upwards and replace the CR2025.

Dead Coin Battery

If your key fob isn't working but you're not successful in reprogramming it using a new code, then the most likely culprit is a dead coin battery. You can replace this battery yourself in less than 10 minutes.

To change the coin battery inside your seat ibiza replacement key open it from the non-metal ringed side first. There's a simple clip-on lid, that you can lever open using your nail. The old battery can be removed via the hole in the middle. Be aware that changing the battery incorrectly or using an unsuitable battery may damage the remote key. Replace the battery with the same voltage, size and specification as the original.

In the event that the key fob you have purchased has been submerged in water, you may have to clean the chip before replacing the battery. This is especially important in the event that you've dropped it into the ocean or in soapy washing water. It is important to do this immediately, as water can cause damage to the chip inside your key fob's electronic circuit.

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 not a problem and can be done in a couple of minutes. The key fob will also stop working if the buttons are worn out. It is a simple fix that only requires replacing the old key shell with a new one.

It's important to note that the battery for the button is required to be replaced in a timely manner or damage may occur to the key fob. It is recommended to always replace the battery with the same size, voltage and specifications. It's also essential that the side of the new battery is in the direction of upwards.

Rubber seals should protect the key fob. However submerging the keyfob in water could cause the seals to break and damage the chip inside. This is usually the case if you accidentally drop your key fob in the pool or leave it in the rain. If the key fob does not work after replacing or reprogramming it, then the receiver module could be damaged.

Water Damage

The key fob is fitted with rubber seals that prevent water from reaching the electronic chip inside. However this doesn't stop occasional bath or splash. If you've survived a washing cycle or swimming in the ocean, the chip may be damaged.

This can be resolved by removing the battery, and cleaning the chip using isopropyl or electronic cleaner. After drying, let it dry before replacing it. If the chip is fried then it must be replace it with a brand new chip.

If your key fob still doesn't work after changing the battery and programming it, there could be due to a issue with the receiver module. This is the part of the car that receives the signals from the keyfob. It then transmits the signals to the key ignition system. If you have an extra key fob you can test it. It should trigger the ignition system light come on and the central locking activate. If this doesn't occur and the receiver is not working, then it could be defective. This is a costly fix but it can be done by a professional in your local garage.

Radio Interference

If the car's radio seems to be acting erratically or the key fob no longer working it could be due to an interference problem with the receiver module in the key. This can be resolved with replacing the key with a new receiver module from Seat parts.

To replace the battery, simply flip out the key part and using your thumb nail or a screwdriver with a flat head, gently pull upwards the key fob's battery compartment cover. Remove the CR2025 battery and insert a fresh one, ensuring that it is fitted with the correct direction of operation. You can also use a standard-sized key with the transponder chip which was transferred from the damaged or worn key. This can be cut off and coded to your car in the event of need.

Faulty Receiver Module

The receiver module is the part inside the key fob which transmits radio signals to your car. The module could be faulty when the fob stops functioning. This can be diagnosed using an OBDII scan tool or by contacting the dealer.

The remote keyless entry system is vulnerable to interference from other devices that operate at the same frequency. This could include mobile phone transmitters, electrical devices, and even some household appliances.

If the key fob is exposed to clean tap water, it could be possible to clean the chip with paper towels and isopropyl alcohol. If the fob's electronic chip has been submerged in soapy or salty water or left for a long period of time on a damp surface, it will almost certainly be damaged and require to be replaced.


To change the battery, use an incredibly small screwdriver with a flat-head or a fingernail for prying open the compartment that houses the button cell batteries (B). Remove seat leon replacement key and insert an CR2025 replacement battery, making sure that the '+' polarity is directed upwards.