Originally Posted by dmlgc
Some garage door openers scramble the codes (mine does). I had to program the original opener to the car then the car to the opener. Also the first time I did it I had to reset the car( two outside buttons for 20 secs I think).
Some garage door openers also have a dedicated remote for 'learning' purposes. It's a special remote used only to train the scrambling sequence to other remotes (e.g. the one in your car).