8-Digit GM Part Number: This displays the part number for the vehicle communication interface mode (VCIM).

Antenna Module: This displays if the vehicle is equipped with an antenna module.

Auxiliary Audio Input: This displays present if an auxiliary audio device is connected to the radio.

Base Model Part Number : Part number of the module hardware only

Battery Voltage: Battery voltage recieved at the module.

Calculated System Temperature: The amplifier calculates the internal operating tempreture based off operating time and volume.

CD H.W. Level: This displays the compact disk hardware level

CD S.W. Level: This displays the compact disk software level

Component Serial Number 13-16: This is the third partition of the serial number.

Date: This is the date as synchronized with global positioning system (GPS) satellites.

DRR: This parameter displays present if the vehicle is equipped with a digital radio reciever.

DVD H/W Part Number: This displays the DVD player hardware level

DVD S/W Part Number: This displays the DVD player software level

Electronic Serial Number: This is the electronic serial number stored in the VCIM which is used by the OnStar® Call Center.

End Model Part Number: Part number of module with software.

GPS Signal: This displays the status of a received GPS signal.

Ign. Cycles Since Last DTC: This displays the number of times the ignition has been cycled from the OFF to ON position since the last DTC was set.

Ignition Counter: This displays the number of times the ignition has been cycled from the OFF to ON position.

Julian Date of Build: This displays the day of the year the module was built.

Module ID: This displays the version of OnStar® which the vehicle is equipped with.

Navigation Hardware Level:: This displays the navigation hardware version

Navigation Software Version:: This displays the navigation software version

Phone Signal:: This verifies if the VCIM has phone reception.

Power Mode:: This displays the status of the vehicle power mode (ignition switch).

Radio ID:: This displays the version of radio the vehicle is equipped with.

Rear Audio Seek Down Switch:: This displays active when the rear audio seek down switch button is pressed and then inactive when released.

Rear Audio Seek Up Switch:: This parameter displays active when the rear audio seek up switch button is pressed and then inactive when released.

Signal Strength: This displays a calculated value for cellular reception signal strength. A higher number indicates a stronger signal.

Signal Type: This displays whether the Generation 6 OnStar® VCIM is currently operating in a digital or analog market.

Software ID: This displays the 3-digit number of the software version used on the OnStar® VCIM.

Software Part Number:: The part number of the software currently installed in the module.

Source Button:: This displays active when the source button is pressed and then inactive when released.

Theft Lock Status:: This diplays if theft lock is active.

Time: This displays the time as synchronized with GPS Satellites.

Transceiver ID: This displays the ID number of the cellular tower that the OnStar® VCIM is using for cellular signal.

Video Display:: This displays present when the vehicle is equipped with a rear seat entertainment system.

VIN Information:: This displays the vehicle VIN number stored in the module.

VCI Module Station ID: This is the station identification number stored in the VCIM which is used by the OnStar® Call Center.

Year Module Build: This displays the year the module was built.