10 Myths Your Boss Has Concerning Skoda Key Reset
How to Reset a Skoda Key
I just received a message from my infotainment system to inform me that the battery for my key is low and requires replacement. It's not the 1st time, and the last time I went to an auto dealer they replaced it for free in just 2 minutes, and they said it would work again.
Switch the ignition ON and lock the vehicle mechanically. Press the unlock button 5 times in intervals of 1 second on the remote control. A short horn tone will sound.
Method of EEPROM
If your car key stops working, it can take an extended time for a professional technician to reprogram it. In many cases, this involves reading the EEPROM to locate the unique code for the particular vehicle. This process is risky, and there's a high chance of corrupting the information inside the module. It is best to leave this to a skilled locksmith.
An EEPROM (non-volatile) memory is utilized in a broad variety of electronic devices like car keys. It is a storage device that stores the unique authentication codes as well as encryption keys that your car recognizes when you use it to unlock or start the car. These codes are vital because they inform your car that you are the owner of the key and have permission to drive.
If your EEPROM is damaged, the keys will cease to function. The problem can be caused by pressing the wrong button or accidentally hitting the wrong key. You could try to reset it using a special tool however, this isn't 100% guaranteed to work. It is recommended to hire an expert who has extensive experience in programming automotive keys.
To reset your EEPROM, you must remove the Kessy Module from the vehicle. This is the module just above the accelerator pedal located on the left side of the car. Utilizing a screwdriver to remove the single plastic clip holding it in the position. Then, unplug the electrical connectors. Take it out. Then, you can read the EEPROM data using the SOIC8 clip or micro pincers connected to an electronic programmer. Once you have all the data you can save the file and write it back into the EEPROM.
You can make use of a program like PonyProg to read the EEPROM data. Click on Read Device. The EEPROM dump will show up as a series of hex characters. There are three values in hex that are the KEY_CODE, key_count and the V_ARG_ENABLED. It is necessary to change all other hex values to 00 to "virginize" the chip. After you've done this, you can then flash the chip to restore its function.
Ignition Method
This method requires a second working key to turn on the car's system. It's not applicable to all vehicles but it should be able to reset the key fob in case it's not working properly or the battery is dying. It will also work in the event that the buttons are repeatedly pressed (a common reason for this is pressing down the unlock button several times).

This method requires that you turn on the ignition and leave it on. Next you must lock the door of the driver of the vehicle with the second key. Then, rotate skoda octavia key not working to its lock position and point it at the receiver for transmission located in the front of the vehicle above the mirror. Hold the unlock button for several minutes. The horn will sound, and the key fob will begin to work.
If the skoda keys aren't functioning, the transmitter inside may have become corrupted or not synchronized with the vehicle's anti-theft system. If this is the situation, it needs to be reprogrammed. A technician or automotive locksmith can assist you with this.
If the key fob doesn't seem to be working after reprogramming, it may be that the car has "forgotten" the key (if the vehicle hasn't used in 6 months). You can still try the resync procedure in the user guide Remove the cap and lock on the driver's side door and unlock the car using the key. It should re sync the key, if not then it's a trip to the dealer. This normally works on keys that have lost their function, and it takes less than two minutes to do.
Keyless Entry Method
The latest generation of keyless entry systems, such as the kind supplied with modern OCTAVIA as well as electric ENYAQ iV vehicles - has an innovative security feature that blocks thieves from "signal extension". A signal is sent to the vehicle and then to the key, which must reply within a specific time. If the key does not respond the car can't be locked. It will start to sound alarms.
The car also can tell that the key is close through a sensor on the door handle. The sensor sends a signal to the key's internal coil that then responds by sending an indication to the sensor. If the sensor detects it the car is locked, it will unlock itself and activate the interior lights automatically, if the key is programmed to do that.
Even older keyless entry systems have a backup. If the remote does not work, you may open the door of the driver mechanically by slipping out the blade or, with certain models, pressing down on a button inside the door pocket. This method is especially useful when the battery of your key is dying or you have lost it.
Remote Control Method
If you've just bought an electronic remote control but it isn't working in your vehicle, the seller might not have programmed it to work with your vehicle. It is possible that the battery terminals have become loose. They will feel loose and sometimes be soldered in. Soldering them back into place should bring back your key fob's full functionality. If you are not comfortable with this type of repair, consult an expert auto electrician.
Switch off the ignition and lock the car from within with another key that is not matched (this resets memory position 1). Enter channel "01". (Can be skoda octavia replacement key "21" on some Audi models.) Insert the new keyfob into the driver's door and press the unlock button twice in less than 5 seconds.
Repeat this coding process for up to 4 additional remote controls. Make sure to turn off the ignition between programming each remote. You should hear a sound every time you successfully program the remote.