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Home >> Buick >> 2003 >> Regal LS >> Repair and Diagnosis >> Body & Frame >> Sun Roof/T-Top/Convertible Top >> Sunroof System >> Repair Instructions >> Sunroof Opening Position Switch Replacement >> Installation Procedure

Installation Procedure

IMPORTANT: The new SOPS comes with a position lock pin that is installed on top of the SOPS. This locks the timing gears in place. Do not remove this pin until after you have installed the SOPS and the actuator.
  1. Keeping the position lock pin in the new SOPS, position the SOPS switch over the drive cables and press down.

    If the SOPS does not slide into position, the ridges on the drive cable housings will not go into the grooves on the back of the SOPS. Lift each cable into the SOPS, and press down on the SOPS assembly.

    Fig 1: Installing Position Lock Pin Top Of SOPS
    G01588181Courtesy of GENERAL MOTORS CORP.
    NOTE: 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.
  2. Install the Sunroof opening Position Switch screw (2) to the switch.

    Tighten 

    Tighten the SOPS screw to 2 N.m (18 lb in).

  3. Fig 2: Installing Sunroof Opening Position Switch
    G01588182Courtesy of GENERAL MOTORS CORP.
  4. Connect the electrical connector to the SOPS.
  5. Install the sunroof actuator. Refer to SUNROOF MOTOR/ACTUATOR REPLACEMENT  .
  6. Remove the position lock pin (1) or the 2 wires from the switch.
  7. Remove the 2 pins from the cable/cam mechanisms.
  8. Install the left and right front sunroof window panel screws.

    Tighten 

    Tighten the front sunroof window panel screws to 4 N.m (35 lb in).

  9. Fig 3: Installing Left And Right Front Sunroof Window Panel Screws
    G01588183Courtesy of GENERAL MOTORS CORP.
  10. Install the sunroof module, but do not install the headliner until after you have tested the sunroof operation. Refer to SUNROOF MODULE ASSEMBLY REPLACEMENT  .
  11. Inspect the operation of the sunroof.
  12. Install the headliner. Refer to HEADLINER REPLACEMENT in Interior Trim.