GM Service Manual Online
For 1990-2009 cars only

For the DE 100 series radio, complete the following procedure, using a scan tool, in order to properly set up communication:

  1. At the Main Menu screen, select: Diagnostics.
  2. At the Vehicle Identification screen, select the following options:
  3. • (1) 2001 (Model Year)
    • Passenger Car
  4. At the System Selection Menu screen, select: Body.
  5. At the Vehicle Identification screen, select the N (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. At the Radio Setup screen, press ENTER (The following test will set up a new or existing radio).
  10. Select one of the following Regular Production Options (RPO) using the arrow keys and press ENTER.
  11. • UM6
    • U1Q + UL2
    • U1P + U85
    • U1Q + U85
  12. Select one of the following options:
  13. • USA/Canada
    • Export
  14. Press the ENTER key.
  15. Verify that the scan tool displays "Test in Progress."
  16. Verify that the scan tool displays "Test Completed Successfully."
  17. Press EXIT on the scan tool.
  18. Important: The radio set up will configure the following systems:

       • LEARN VIN
       • Diagnostic Trouble Codes
       • Class 2 Radio Messages
       • Country Code
       • Chime Volume
       • Chime Level
       • 12/24 Hour Clock
    Without learning the VIN, the radio will display a locked message (LOC).

    The radio setup procedure will also clear the following messages:

       • CAL
       • CAL ERR
       • CALIBRATE

  19. Cycle the ignition.

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.

  1. At the Special Functions screen, select F1: Set Options.
  2. At the Set Options screen, select F1: Tuner Setting.
  3. Important: The F0: 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.

  4. At the Tuner Setting screen, select F0: Country Code.

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 F1: Set Options.
  2. At the Set Options screen, select F0: Chime Settings.
  3. Important: The F1: Loud Chime Volume and the F2: Normal Chime Volume options do not contain a submenu. These selections are used for setting the volume when the radio is replaced.

  4. At the Chime Settings screen, select one of the following options:
  5. • F1: Loud Chime Volume
    • F2: Normal Chime Volume

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 F1: Set Options.
  2. At the Set Options screen, select F0: Chime Settings.
  3. Important: The F0: 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.

  4. At the Chime Settings screen, select F0: Chime Level.