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Home >> Buick >> 2023 >> Envision Preferred, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 83 (Sunroof) >> Repair Instructions >> Sunroof Module Assembly Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2021 Buick Envision. However, it is still accessible from the selected car via links, so may be relevant.
  1. GM5591662Courtesy of GENERAL MOTORS COMPANY

    With the aid of an assistant, install sunroof module (2).

  2. Sunroof Module Bolt (1) - Install and hand tighten [16x] 9 N.m (80 lb in)
  3. Connect the electrical connector.
  4. Inspect the sunroof window seal-outer to ensure the seal did not fold under the roof structure.
  5. GM5591661Courtesy of GENERAL MOTORS COMPANY

    Connect the sunroof housing drain hoses (1).

  6. GM5607726Courtesy of GENERAL MOTORS COMPANY

    Headlining Trim Panel (2) - Install - Headlining Trim Panel Replacement (with C3U) , or Headlining Trim Panel Replacement (without C3U)

  7. Water test and inspect sunroof for proper operation.