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Home >> GMC >> 2021 >> Terrain SLE, 4WD >> Repair and Diagnosis >> General Information >> Reset Procedures >> Programming And Setup >> Repair Instructions >> K39 Liftgate Control Module: Programming and Setup >> Reprogram Control Module
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Reprogram Control Module

NOTE:

Some vehicles may be equipped with the handsfree liftgate control option (TC2), it is important to select the correct calibration software for vehicles with or without this option as programming the liftgate with the incorrect software will cause the power liftgate system to become inoperative without any DTCs indicated

NOTE:

The liftgate must be completely closed and latched, if the liftgate is open or ajar during programming, the power liftgate system may become inoperative without any DTCs indicated

To reprogram an existing control module, perform the following procedure:

  1. Access the Service Programming System (SPS) and follow the on-screen instructions.
  2. On the SPS Supported Controllers screen, select K39 Liftgate Control Module - Programming and follow the on-screen instructions.
  3. On the SPS Supported Controllers screen, select K39 Liftgate Control Module - Setup and follow the on-screen instructions.
  4. At the end of programming, choose the "Clear All DTCs" function on the SPS screen.
  5. With a scan tool, perform the Liftgate Relearn. Refer to Liftgate Calibration