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Home >> GMC >> 2021 >> Terrain SLT, 4WD >> Repair and Diagnosis >> General Information >> Reset Procedures >> Programming And Setup >> Repair Instructions >> T3 Audio Amplifier: Programming and Setup >> Replace and Program Control Module or Reprogram Control Module
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Replace and Program Control Module or Reprogram Control Module

To program a replacement or an existing control module, perform the following procedure:

  1. Ignition ON, Vehicle OFF
  2. Access the Service Programming System (SPS) and follow the on-screen instructions.
  3. On the SPS Supported Controllers screen, select T3 Audio Amplifier - Programming and follow the on-screen instructions.
  4. Clear DTCs.