SERVICE INFORMATION If the configuration of the Audio/Navigation unit has not been completed correctly, some of the symptoms that may occur are: * Intermittent or no back up camera operation * No steering wheel switch response to audio inputs * No volume response from volume knob * Volume very loud or very quiet and adjustment is overly sensitive * Equalizer is adjusted so that Bass control is at maximum all the time * DTC U1000 for AVM C/U could be present If the above symptoms occur: * Confirm the configuration of the Audio/Navigation unit is correct. NOTE: Correct configuration of the appropriate control unit will restore correct operation. Audio/Navigation unit configuration is outlined starting on page 2. See this bulletin for further detail.
