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Home >> Buick >> 2015 >> Regal GS, AWD >> Repair and Diagnosis >> Body & Frame >> Sun Roof/T-Top/Convertible Top >> Sunroof System >> Repair Instructions >> Sunroof Housing Replacement >> Installation Procedure

Installation Procedure

  1. Transfers all parts as necessary.
    2. CAUTION:

    Refer to Fastener Caution .

  2. Insert the sunroof housing assembly to the gauge pin location in the opening.

    Tighten the three fasteners.

    3. Fig 1: Sunroof Housing And Fasteners
    GM2780619Courtesy of GENERAL MOTORS COMPANY
  3. Install the sunroof housing (2) assembly with the remaining fasteners and tighten to 9 N.m (80 lb in).
  4. Connect the sunroof window motor electrical connector.
  5. Install the both rear water drain hoses to the sunroof frame spigot and tie straps, if required.

    Connect the 2 hoses and apply tie straps if required.

  6. Install the both front water drain hoses to the sunroof frame spigot and tie straps, if required.
  7. Install the sunroof windows front and rear. Sunroof Window Replacement - Front , and Sunroof Window Replacement - Rear .
  8. Verify the operation of the sunroof.
  9. Water test the vehicle before installing the headliner.
  10. Install the headlining. Refer to Headlining Trim Panel Replacement (With Sunroof) .
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