GM Service Manual Online
For 1990-2009 cars only

With U1C or UM6

  1. To setup a new radio for the vehicle, complete the Module Setup procedure under the Special Functions menu of the scan tool.
  2. Cycle ignition with the retained accessory power (RAP) disabled, when complete

With US8/US9 or U3U (Navigation Radio)

  1. Radio setup completed using the Service Programming System (SPS). Refer to Service Programming System (SPS) .
  2. Cycle ignition, with the retained accessory power (RAP) disabled, when complete.