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 keeping up with traffic flow while Lane Assist takes the worry out of changing lanes.
Remove the key fob's battery compartment cover (A). Utilizing a thumb nail or flat-head screwdriver, prise upwards on the cover. Replace the CR2025 battery.
Dead Coin Battery
If your key fob has stopped working and you're successful in reprogramming it using the latest code, the most likely reason is a dead battery in the coin. It is possible to replace the battery yourself in less than 10 minutes.
The key is opened from the side without the metal rings. There's a simple clip-on lid, that you can lever open using your nail. The old battery is then pulled through the hole in the middle. Note: If you replace the battery incorrectly, or with a battery not suitable, it can cause damage to the remote. Always replace the battery with one of the same voltage, size and specifications as the original.
If your key fob was submerged in water, you may have to clean the chip prior to replacing the battery. It's especially important if it was dropped into the ocean or soapy water. It is important to do this as soon as you can, since water could damage your key fob's electronic chip.
Worn Buttons
Seat Ibiza keys stop working most often because the coin battery is dead. It is a simple fix and only takes a few minutes. The key fob will also stop functioning if the buttons are worn out. This is a simple fix and only requires you to swap out the old keyshell for an entirely new one.
It is important to remember that the battery for the button is required to be replaced in a timely manner or damage could occur to the key fob. It is recommended to always replace the battery with the same voltage, size and specification. It's also crucial that the polarity of the new battery is directed upwards.
The key fob is protected by rubber seals, which should keep water out. The submersion of the keyfob may cause the seals on the keyfob to break, damaging the electronic chip. This is the most likely scenario in the event that your key fob has been left in the rain or drops into the pool. If your key fob doesn't work even after replacing it or reprogramming it, the receiver module could be faulty.
Water Damage
Rubber seals on the key fob block water from reaching the chip. However, this doesn't stop the occasional splash or bath. If you've made it through a washing cycle or a dip in the ocean, the chip may be damaged.
This can be resolved by removing the battery and then cleaning the chip with isopropyl or electronic cleaner. After drying, let it dry before placing it back. If the chip has been damaged it will need to be replaced with a brand new one.
If your key fob doesn't function after changing the battery or reprogramming, there could be a problem with the receiver module. This is the part of your car that receives the signals from the keyfob, and then sends 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 turn on and the central locking activate. If The Keylab does not happen and the receiver is not working, then it may be faulty. This is a costly repair however it can be repaired by a professional at your local garage.
Radio Interference
If the car's radio seems to be acting erratically or the key fob not working, it could be due to an interference problem with the receiver module in the key. It can be fixed by the replacement key using a new receiver module purchased from Seat parts.
To replace the battery, unplug the key and gently lift the cover of the key fob's battery compartment with your thumb or a screwdriver made of flat heads. Remove the old CR2025 and replace it with a new battery, making sure that the polarity is correct. You can also use a standard key with the transponder chip transferred from the worn or damaged key. This can be coded, and cut to fit your car as needed.
Faulty Receiver Module
The receiver module inside your key fob is what transmits radio signals to your car. If the fob stops working, it could be that the module has become defective. This can be diagnosed using an OBDII scan device or by getting in touch with the dealer.
Other devices that utilize the same frequency can interfere with the remote keyless entry system. This includes mobile phones, electronic devices, and even household appliances.
If the fob is exposed clean tap water, it may be possible to clean the electronic chip using paper towels and isopropyl Alcohol. If the fob's electronic chip has been submerged in soapy or salty water or sat for a long period of time on a damp surface, it is almost certain to be damaged and need to be replaced.
To change the battery, use a small flat-head screwdriver or a fingernail to pry open the compartment to access the button cell batteries (B). Remove the battery that was in place. Insert a new CR2025, ensuring that the "+" polarity is facing up.