GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2003 🢒 Regal 🢒 Body and Accessories 🢒 Doors 🢒 Front Side Door Window Regulator Replacement

Removal Procedure
  1. Remove the front door water deflector. Refer to Front Side Door Water Deflector Replacement .
  2. Remove the front door window. Refer to Front Side Door Window Replacement .
  3. Remove the arm rest bracket. Refer to Armrest Replacement .

    4. Object Number: 388503 Size: SH

    Important: The window regulator screws are seated into key slots in the inner door panel and is unnessessary to remove the screws completely from the window regulator.

  4. Loosen the front door window regulator mounting screws.
  5. Remove the front door window regulator rail left lower mounting screw.
  6. Lower the front door window regulator motor into the front door to gain access to the electrical connector.
  7. Disconnect the front door window regulator motor electrical connector.
  8. Remove the front door window regulator from the front door.

Installation Procedure

    Object Number: 388503 Size: SH
  1. Position the front door window regulator into the front door.
  2. Connect the front door window regulator motor electrical connector.
  3. Position the front door window regulator motor inside the front door and install it into the key slots in the inner door panel.
  4. Position the front door window regulator rail assembly into the key slots in the inner door panel.

    5. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  5. Install the front door window regulator rail left lower mounting screw.

    6. Tighten
    Tighten the screw to 10 N·m (89 lb in).

    Important: In order to ensure proper orientation of the window regulator to the door, tighten the remaining window regulator screws in the specified sequence; lower rear, upper rear, lower front, upper front.

  6. Hand tighten the remaining front door window regulator screws.

    7. Tighten
    Tighten the screws to 10 N·m (89 lb in).

  7. Install the front door window. Refer to Front Side Door Window Replacement .
  8. Install the arm rest bracket. Refer to Armrest Replacement .
  9. Install the front door water deflector. Refer to Front Side Door Water Deflector Replacement .