Method for teaching at least one radio key (1) to an access control device (4) for a motor vehicle (10), with each of the at least one radio key (1) being controlled via the access control device (4) locking and unlocking of the motor vehicle (10), wherein the training by means of an immobilizer (3) of the motor vehicle (10) is performed, characterized in that transmitted from the at least one remote control key (1) data to the immobilizer (3) and of the immobilizer (3) to the access control device (4) which the at least one radio key (1) transmits to the access control device (4) by radio to the access control device (4) during the teaching of the at least one radio key (1), and that the at least one radio key (1) is transmitted only to the access control device (4 ) is learned when the data transmitted by the at least one radio key (1) by radio to the access control device (4) from the immobilizer (3) to the Access control device (4) correspond to transmitted data
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