Managing BLUETOOTH Connections

When the system is first activated the customer is led through a pairing process so that the Bluetooth phone module (BPM) and the cellphone recognize and approve each other. This process usually only needs to be carried out once for each cellphone to be used in the vehicle.

The pairing process starts by the Bluetooth phone module (BPM) searching for all nearby blue tooth units. When this search is complete a list is presented for the user with all the cellphones which were found during the search. The name which occurs in the list can normally be set on the customer's cellphone. Note that the bluetooth function in the cellphone must be active and it must be possible to search for the cellphone for it to appear in the list.

When the customer selects their cellphone in the list the units must exchange identity information with each other. A randomly generated 4 figure code is presented for the user in the display in the infotainment control module (ICM). The code can then be entered in the cellphone to complete the pairing process. If this fails the user can try again.

When the process has succeeded, the cellphone will automatically connect to the Bluetooth phone module (BPM) and the telephone functions are available. If copying of the phone book and call lists are supported by the cellphone these will be loaded automatically over to the Bluetooth phone module (BPM) after the units have been connected. This process can take a few minutes on the first occasion and during this time the phone book is not available.

The next time the customer enters the vehicle with that cellphone it will be connected to the Bluetooth phone module (BPM) automatically. Note that the bluetooth function must be active in the cellphone for the automatic connection to occur. The previously copied phone book is available immediately, but a new copy will be taken in the background to ensure that any changes in the customer phonebook are available.

A total of five phones can be paired to the vehicle at the same time. However only one cellphone can be connected, i. e. can be controlled from the vehicle and connect sound via the vehicle.

On start up, the Bluetooth phone module (BPM) will automatically try to connect the cellphone which was most recently connected to the system. If this cellphone is not detected a list of all paired cellphones and the opportunity to pair a new cellphone is presented to the user. It is then possible to change the connected phone while driving.

It is also possible to remove cellphones from the list of paired phones.