GM Service Manual Online
For 1990-2009 cars only

Radio Setup

When replacing a DE 100 series radio in the U-Van, two procedures have to be completed with the scan tool to properly configure the replacement radio to the vehicle. With the key in the ON position, use a scan tool to perform the New Vin procedure and the Radio Setup procedure to set up communications between the radio and the vehicle.

  1. At the Main Menu screen, select Diagnostics.
  2. At the Vehicle Identification screen, select the following options:
  3. 2.1. Model Year
    2.2. LD Trk, MPV, Incomplete
  4. At the System Selection Menu screen, select Body.
  5. At the Vehicle Identification screen, select U or X (Platform type).
  6. At the Body screen, select Radio.
  7. At the Radio screen, select Special Functions.
  8. At the Special Functions screen, select Radio Setup.
  9. Select the appropriate radio. Uplevel Radio is anything other than the Base AM/FM Radio.

Important: The Radio Setup option does not contain a submenu. Radio Setup will configure the following systems:

   • Steering wheel controls
   • Learn VIN
   • DTCs
   • Class 2 radio messages
   • Country Code
   • Chime Volume
   • Chime Level
   • 12/24 Hour Clock

Radio Tuner Calibration

In order to calibrate the radio, begin at the Special Functions screen. Repeat step 1 through step 7 of the Radio Setup, if needed.

At the Special Functions screen, select Country Code.

Important: The Country Code option does not contain a submenu. Country Code sets the point of sale, or origin, in the radio in order to calibrate the tuner for the country that the vehicle will be used in.

Radio Chime Volume Selection

In order to set the chime volume, begin at the Special Functions screen. Repeat step 1 through step 7 of the Radio Setup, if needed.

  1. At the Special Functions screen, select Set Options.
  2. At the Set Options screen, select Chime Settings.
  3. At the Chime Settings screen, select the following option:
  4. • Loud Chime Volume
    • Select the appropriate voltage/volume level.

Important: The Loud Chime Volume option does not contain a submenu. This selection is used for setting the volume when the radio is replaced.

Radio Chime Level Selection

In order to set the Chime Level, begin at the Special Functions screen. Repeat step 1 through step 7 of the Radio Setup, if needed.

  1. At the Special Functions screen, select Set Options.
  2. At the Set Options screen, select Chime Settings.
  3. At the Chime Settings screen, select Chime Level.

Important: The Chime Level option does not contain a submenu. The Chime Level setting has an option of setting a normal chime or a loud chime when the radio is replaced.