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Causes of Slow Moving Window

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Internal Detail For Front Door Window Adjustment
    GM443897Courtesy of GENERAL MOTORS CORP.
    CAUTION: Disconnect the power window switch when working inside the driver door. When operated, the Express Up/Down Feature allows the door window to move very quickly, without stopping, which could cause personal injury.
    IMPORTANT: Owners may comment that the windows operate slowly when going up or down.
  1. Listed below are conditions that may cause a slow moving window.
    • The window run channel outboard lip at the rearview mirror is rolled over or the window run channel outboard lip at the rear of door frame (2).
    • The window is not seated in the run channel.
    • The window is misaligned in the opening.
    • The regulator is misaligned causing misalignment of the window.
    • Inspect the power window motor for being loose.
    2. Fig 2: Identifying Power Window Motor Electrical Connector
    GM1362843Courtesy of GENERAL MOTORS CORP.
  2. After inspecting the conditions above, do the following:

    Remove the front door trim panel. Refer to Front Side Door Trim Panel Replacement .

  3. Remove the front door water deflector. Refer to Front Side Door Water Deflector Replacement .
  4. Ensure that the window guide to is fully seated and clipped.
  5. Ensure that the window is fully seated into the window guide run channel.
  6. Inspect the window for equal distance between the front and rear run channels.
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