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How to Reset a Skoda Key I just received a notification that my infotainment unit was low on battery and has to be replaced This isnt the first time and the last time I visited an auto shop they replaced it for free in 2 minutes and said it will work again Switch on the ignition and lock the vehicle mechanically Press the unlock button five times at intervals of one second on the remote control A short horn will sound Method of EEPROM When your car key isnt working it could take a while for a professional to reprogramme it In most cases this means taking a look at the EEPROM to find the unique code for the particular car This process is risky and theres a high likelihood of damaging the information within the module Its best to leave this to a professional locksmith An EEPROM is an inbuilt memory that is nonvolatile and can be found in many electronic devices such as keys for cars It stores data including the unique security codes or encryption keys that are recognized by your car when you use the key to unlock or start it These codes are crucial because they notify the car that you have the correct key and are authorised to drive it If your EEPROM is damaged the keys wont work The issue is caused by pressing the wrong button or accidentally hitting the wrong key You may try to reset it by using a special tool however this method isnt guaranteed to work It is better to work with a professional who has extensive knowledge of programming automotive keys To reset your EEPROM you must remove the Kessy Module from the vehicle This is the module located above the accelerator pedal on the left side of the vehicle Take off the clip made of plastic that holds it in place with a screwdriver Then disconnect the electrical connectors Take it out Then you can read the EEPROM data with an micro pincer or SOIC8 clip connected to an electronic programmer Once you have the data you can save the data to a file and then write it back into the EEPROM You can use a program such as PonyProg to read the EEPROM data Click on Read Device The EEPROM dump appears as an array of hexadecimal characters Three hex numbers are noteworthy for the KEYCODE keycode as well as the keycount keycount and the VARGENABLED It is necessary to change all other Hex values to 00 to virginize the chip Once you have done this you can flash the chip to restore its functionality Ignition Method This method involves using a second working key to activate the cars security system It isnt applicable to all vehicles however it will be able to reset the key fob in case its not functioning properly or the battery is dead It will work if you have pressed the buttons hard people often attempt to press the unlock button repeatedly This method requires you to turn on the ignition and keep it turned on Then lock the cars drivers door with another key Then put the key fob in the lock position and point it at the transmitter for transmission on the front side of the vehicle above the mirror Press and hold the unlock button for a couple of seconds The horn will sound and the key fob will start to work If the skoda keys fail to work it could be that the transmitter inside has been damaged or out of sync with the vehicles theft deterrent system If this is the situation it needs to be changed into a new program A locksmith technician or auto locksmith can assist you with this If the key fob does not function after reprogramming it it could be because the car forgot the key when the car wasnt used for 6 months You can attempt the resync process in the user guide remove the cap and lock from the drivers side of the door Then unlock the car with that key If it does not work youll need to visit the dealer This is usually the case with keys that are no longer working and is less than two minutes Keyless Entry Method The new generation of keyless entry systems like the ones that are included in the latest OCTAVIA and ENYAQ iV vehicles has an innovative security feature that stops thieves from signal extension The car sends an alarm and the key has to respond within a set time If the key doesnt reply the vehicle cannot be locked and will sound alarms A sensor located in the handle of the door can also be used to tell the car that the key is in close proximity It works by sending a signal to the keys internal coil which in turn responds by sending an indication to the sensor If the sensor detects it then the car will open itself and activate the interior lights automatically if it is set to do this Even older keyless entry systems come with an alternative If the remote does not work you can still open the drivers door mechanically by sliding out the blade or in some models pressing down on a button inside the door pocket This is especially helpful in the event that your keys battery is dead or youve lost it Remote Control Method If youve just bought a remote control that isnt working in your vehicle the seller might not have programmed it to work with your vehicle It could be that the battery terminals are loose look for this they may appear a bit loose to the touch and then sometimes soldered in place carefully soldering them back in place should restore your key fob to working order If youre not confident with this type of repair contact an expert auto technician Switch off the ignition and secure the car from the inside using a second unmatched key this resets memory position 1 Enter channel 01 Can be channel 21 on certain Audi models Insert the new key fob in the door to the drivers side and then press its unlock button twice within 5 seconds often enough to reach the next memory position Repeat this process for up to four additional remote controls Be sure to turn off the ignition in between programming each remote skoda locked keys in car should hear a tone each time you successfully program the remote