GM Service Manual Online
For 1990-2009 cars only

Sunroof Motor/Actuator Initialization/Teach Process Existing Motor

Perform the Initialization/Teach Procedure any time the sunroof motor/actuator is removed from the sunroof.

  1. Ensure that the electrical harness on the headliner is connected to the sunroof.
  2. Press the sunroof switch to the open position until the window stops at the rear soft stop in the fully open position. Release the switch.
  3. Press and hold the switch in the open position for 10 seconds or more. The sunroof will stall at the hard stop and move back slightly to the soft stop position. Release the button.
  4. Within 6 seconds, press and hold the open switch. After an additional 3 seconds, the sunroof window will move toward the close position.
  5. Hold the switch until the sunroof window stops at the closed position. Release the switch.
  6. Verify the operation of the sunroof.

Important: The Initialization/Teach Procedure is not complete if any of the following actions take place before the initialization cycle is done:

   • The sunroof switch is not held in the open position.
   • The ignition and/or battery power has been removed.
   • The glass panel has not reached the closed position.
The Initialization/Teach Process must be restarted if the procedure is not carried out completely.

Sunroof Motor/Actuator Initialization/Teach Process New Motor

Perform the Initialization/Teach Procedure any time a new sunroof motor actuator is installed in the vehicle.

  1. Ensure that the electrical harness on the headliner is connected to the sunroof.
  2. Press the sunroof switch to the open position until the window stalls at the rear hard stop in the fully open position, then moves slightly toward the soft stop position. Release the switch
  3. Within 6 seconds, press and hold the open switch. After an additional 3 seconds, the sunroof window will move toward the close position.
  4. Hold the switch until the sunroof window stops at the closed position. Release the switch.
  5. Verify the operation of the sunroof.

Important: The Initialization/Teach Procedure is not complete if any of the following actions take place before the initialization cycle is done:

   • The sunroof switch is not held in the open position.
   • The ignition and/or battery power has been removed.
   • The glass panel has not reached the closed position.
The Initialization/Teach Process must be restarted if the procedure is not carried out completely.