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Key Initialization

If the BC1 rolling key code becomes out of step with the remote key, synchronization is required. The synchronization procedure can be carried out in two ways:

It is not necessary to synchronize all the keys together. As the key codes are stored in the BC1, the synchronization procedure is simply aligning the rolling code in the BC1 to the individual key and will not affect any additional keys.

On new style keys, initialization can be performed as follows:

Fig 1: Key
G04730167Courtesy of BMW OF NORTH AMERICA, INC.

As confirmation, the vehicle will lock and unlock. To initialize a additional keys (up to three) follow step two and three for each key.