GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2007 🢒 Envoy - 2WD 🢒 Roof 🢒 Sunroof 🢒 Sunroof Track Timing/Synchronization

Removal Procedure
  1. Place the module in the full open position.
  2. It is only necessary to lower the headliner. Only do those step in headliner replacement that will lower the headliner enough to gain access to the part. Refer to Headlining Trim Panel Replacement .
  3. Disconnect the electrical connector from the motor/actuator.
  4. Remove the motor. Refer to Sunroof Motor/Actuator Replacement .
  5. Push the window guides rearward on the track until the guides are positioned against the rear hard stop.

Installation Procedure
  1. Install the motor. Refer to Sunroof Motor/Actuator Replacement .
  2. Connect the electrical connector to the motor/actuator.
  3. Install the headliner. Refer to Headlining Trim Panel Replacement .
  4. Perform the Initialization/Teach Procedure. Refer to Sunroof Motor/Actuator Initialization/Teach Process .
  5. Verify the operation of the sunroof.