GM Service Manual Online
For 1990-2009 cars only

Bluetooth Wireless Technology

Bluetooth Wireless Technology is a cordless link between two devices, in this case, a cellular telephone and the Bluetooth car kit. Bluetooth devices communicate via low-power radio waves. Bluetooth communicates on a frequency of 2.45 gigahertz which has been reserved by international agreement for the use of industrial, scientific and medical devices (ISM).

Due to the low power of the signal, approximately 1 milliwatt, a cellular telephone must be within 10 meters (32 feet) of the vehicle's Blue Tooth Module to connect and operate. However the cellular telephone and the Bluetooth module do not need to be in a direct line of sight. For example the cellular telephone can be in the centre console or in a bag whilst connected to the Bluetooth car kit.

When a paired cellular telephone and the Bluetooth car kit come within range of one another, an electronic conversation automatically takes place and the devices form a personal-area network (PAN), or piconet, in the vehicle. To avoid interference from other Bluetooth devices, the paired cellular telephone and the Bluetooth car kit, once a piconet is established, randomly hop frequencies in unison so they stay in touch with one another and avoid other piconets that may be operating in the same area.

Bluetooth Definitions

Paired: The Bluetooth module and the cellular telephone have stored each other's ID in memory and are available to be connected when they are within 10 meters (32 feet) of each other.

Connected: The cellular telephone handset is currently linked with the Bluetooth car kit. All functions on the Bluetooth car kit are active.

Pairing a Cellular Telephone

The pairing between a cellular telephone with Bluetooth capability and the Bluetooth car kit can be established using the following procedure.

Important: If a Blackberry/PDA device is being used, the pairing action may take several seconds longer to complete. Do not interrupt during this process or the pairing will not be successful.

  1. Switch the cellular telephone ON.
  2. Turn the ignition to the ON position.
  3. Perform the following steps on the cellular telephone:
  4. 3.1. Enter the Bluetooth menu.
    3.2. Activate the Bluetooth function.
    3.3. Search for Bluetooth devices.
    3.4. Select the device labelled 'Vehicle BT'.
    3.5. Enter the following PIN: 1234.

    This establishes the connection between the cellular telephone and the Bluetooth car kit.

    3.6. Set the cellular telephone to accept Bluetooth connection requests automatically without permission (if required).

Pairing multiple cellular telephones

The Bluetooth car kit can be paired with up to six cellular telephones, but can only be connected to one cellular telephone at a time. If a seventh cellular telephone is paired with the Bluetooth car kit, the first or least recent cellular telephone paired with the Bluetooth car kit ID will be over written and will no longer be paired with the Bluetooth car kit.

When the ignition is switched on, the Bluetooth car kit searches for the most recently paired cellular telephone.

Connecting a Cellular Telephone

Important: Make sure the cellular telephone being connected has been paired with the Bluetooth car kit or the connection will not be successful.

Connection between a paired cellular telephone and the Bluetooth car kit can be established using the following procedure.

  1. Move the cellular telephone to within 10 meters (32 feet) of the vehicle's Blue Tooth Module, preferably inside the vehicle.
  2. Make sure the cellular telephone is switched on and the Bluetooth function has been activated.
  3. Turn the ignition to the ON position.
  4. Press the Bluetooth button on the steering wheel (if required). A phone symbol will appear in the instrument panel centre display for a few seconds.

Bluetooth Call Options

After connection between a cellular telephone and the Bluetooth car kit has been established, the following call options may be selected. Refer to the owner handbook for specific detail on each call option.

    • Dial normally on the cellular telephone handset.
    • Make a call by voice dialling.
    • Answer a call.
    • Automatic answer.
    • Reject a call.
    • Place call on hold.
    • End a call.
    • Redial the last number.

Cancelling the Bluetooth Connection

To cancel the Bluetooth connection, perform any of the following:

    • Turn the ignition to the OFF position and open the drivers door.
    • If no call is in progress, press and hold the Bluetooth button on the steering wheel for three seconds.
    • Deactivate the Bluetooth function on the cellular telephone.
    • Move the cellular telephone outside of the reception range of the Bluetooth car kit (approximately 10 meters).
    • Switch off the cellular telephone

Vehicle Audio System

When making or receiving a call, the vehicle's audio system is automatically set to silent. The voice of the caller is heard through the audio systems speakers and VOICE IN is shown on the audio system display.

Setting Up The Audio System

The volume, bass, treble, fader and balance can be adjusted in the audio system's Bluetooth mode without affecting radio or CD settings.

Set up the audio system for Bluetooth by performing the following procedure:

  1. Make a call using the Bluetooth car kit.
  2. Adjust the volume, balance and fader settings for Bluetooth.
  3. End the call.