How to program Audi TT MK1 key with one key. My Audi TT MK1 key decoded itself from car when the battery died. I found the procedure to reprogram the key is to:
1) Put the key in the ignition and switch to on position
2) Lock the car from the outside on the drivers door (this is done by taking out the key barrel in my video)
3) Press the lock button on the keyfob.
This should then sync the key to the car and you’re back to normal. Thanks for watching.
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