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Home >> Buick >> 2006 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 249 (Sunroof System) >> Repair Instructions >> Sunroof Track Timing/Synchronization >> Installation Procedure
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Installation Procedure

WARNING: This page is about a different car, the 2007 Buick LaCrosse and 2007 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
    NOTE: Refer to Fastener Notice .
  1. Install the sunroof window. Refer to Sunroof Window Replacement .

    Tighten:  Tighten the screws to 4 N.m (35 lb in).

    2. Fig 1: Inspecting Timing Window (PES)
    GM1542796Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Before installing the sunroof opening position switch, inspect the timing window. The small hole must be in line with the bar, as shown. If the hole is not aligned with the bar, rotate the gear by hand left or right until the hole and the bar are in position.
  2. Install the control module.
  3. Install the motor/actuator. Refer to Sunroof Motor/Actuator Replacement .
    4. Fig 2: Installing Pin (PES)
    GM1542794Courtesy of GENERAL MOTORS CORP.
  4. Remove the pin that was installed to temporarily hold the position of the sunroof opening position switch.

    Tighten:  Tighten the motor/actuator attachment screws to 3.5 N.m (31 lb in).

  5. Connect the electrical connector to the motor/actuator.
  6. Install the headliner.
    IMPORTANT: If the sunroof does not function properly, and the guides are parallel, then replace the sunroof opening switch.
  7. Verify the operation of the sunroof.
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