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Home >> Buick >> 2012 >> Regal Base >> 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

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

    Tighten the three fasteners.

  4. Fig 1: Sunroof Housing Fasteners
    GM1937633Courtesy of GENERAL MOTORS COMPANY
  5. Install the sunroof housing assembly with the remaining fasteners and tighten to 9 N.m (80 lb in).
  6. Connect the front wiring harness actuation unit.

    Connect the 2 wiring harness plugs.

  7. Install the rear water drain hose actuation unit.

    Connect the 2 hoses and apply tie straps if required.

  8. Install the front water drain hose actuation unit.

    Connect the 2 hoses and apply tie straps if required.

  9. Verify the operation of the sunroof.
  10. Water test the vehicle before installing the headliner.
  11. Install the headlining. Refer to Headlining Trim Panel Replacement (With Sunroof) , Headlining Trim Panel Replacement (Without Sunroof) .