Why a Seat Ibiza Replacement Key Won't Work

A newer generation of driver assist improves the Ibiza to a whole new level. Travel Assist ensures that your vehicle can keep up with the flow of traffic while Lane Assist eliminates the stress of changing lanes.

Remove the cover for the battery compartment on the key fob (A). With a thumb nail, or flat-head screwdriver, prise upwards on the cover. Replace the CR2025 battery.

Dead Coin Battery

If your key fob stopped working and you're able to reprogram it with an entirely new code, the most likely culprit is a dead coin battery. You can replace this battery yourself in less than 10 minutes.

Flip the key open first by removing the metal rings. There's a clip-on lid, that you can lever open using your nail. The old battery can be removed through the hole in the middle. Be aware that changing the battery improperly or using an unsuitable battery could damage the remote key. Replace the battery using the same voltage, size, and specification as the original.

If your key fob was submerged in water, it may be necessary to clean the chip prior to replacing the battery. It's especially important if it was dropped in the sea or in soapy water. It is imperative to take action immediately since exposure to water could damage the electronic chip and cause your seat leon key fob replacement fob to cease working.

Worn Buttons

seat leon car key replacement Ibiza keys stop working most often because the coin battery is dead. It's a straightforward fix that will take only a few moments. The key fob will also cease to function if the buttons are worn. This is another easy fix and it only requires you to swap out the old keyshell for an entirely new one.

It's important to know that the battery for the button is required to be replaced in a timely manner or damage can occur to the key fob. It is recommended to always replace the battery with the same voltage, size and specifications. It's crucial that the polarity is in the right direction on the new battery.

Rubber seals should protect the key fob. Submerging the keyfob in water could cause the seals of the keyfobs to break, which could damage the electronic chip. This is the most likely scenario if your key fob is left in the rain or accidentally drops into the pool. If your key fob still isn't working, even after replacing it or reprogramming, the receiver module might be faulty.

Water Damage

Rubber seals on the key fob stop water from reaching the electronic chip. However it's not enough to prevent the occasional splash or bath. If you've survived a wash cycle or a dip in the ocean, the chip may be damaged.

It can be fixed by removing the battery and then cleaning the chip using isopropyl or electronic cleaner. Dry it completely and then put it back. If the chip is fried it will need to be replaced with a brand new one.

If your key fob doesn't work after changing the battery and programming it, there could be a issue with the receiver module. This is the component in the car seat key that receives signals from the key fob and relays signals to the key ignition system. It can be tested by using the spare key fob if you have one. This should make the ignition system light turn on and the central locking button activate. If this doesn't occur then the receiver module may be faulty. This is a costly fix however it can be accomplished by a professional at your local garage.

Radio Interference

The receiver module on your key could cause interference. It can be fixed by the replacement key using a new receiver module purchased from seat leon key fob programming parts.

To replace the battery, take off the key piece and then using your thumb nail or a flat head screwdriver gently prise upwards the key fob's compartment cover. Take off the old CR2025 battery and insert a fresh one, making sure it has the correct direction of operation. You can also use a regular key that has a transponder chip which was previously on a worn or damaged key. This can be cut and coded to your car seat key in the event of need.

Faulty Receiver Module

The receiver module inside your key fob is what transmits radio signals to the car. If the fob stops working, it could be that the module has become defective. This can be detected by using an OBDII scanner or by contacting the dealer.

Other devices that operate on the same frequency could interfere with the remote keyless entry system. This can include mobile phones, electronic devices, and even household appliances.

If the key fob is exposed clean tap water, it may be possible to clean the chip with paper towels and isopropyl Alcohol. If the fob's electronic chip has been submerged in salty or soapy water or left for a long time on a damp surface, it is most likely to be damaged and will need to be replaced.

To replace the battery on your key fob you will need your thumb nail or small screwdriver that has a flat head to break open the cover of the button cell compartment (B). Remove the battery that was in place. Replace it with a brand new CR2025 battery, making sure the "+" orientation is facing up.