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For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2007 🢒 G6 🢒 Roof 🢒 Sunroof 🢒 Sunroof Window Height and Opening Fit Adjustment

Sunroof Window Height and Opening Fit Adjustment C3Y

    Important: Wind/whistle noise, air leaks and possible water leaks on the C3Y panoramic sunroof when closed. The easiest way to identify the location of the air leak is to use a rubber hose against your ear in order to listen for the air leak. Using a rubber hose, 1/2 inch diameter 3 feet long, listen around all the sunroof window sealing locations while all the door, windows and the sunroof window panels are closed, with the HVAC blower on high. It should be note that some leakage will be heard at the "T" joints on vehicles without a customer complaint.

  1. Open the sunshade.
  2. If adjusting the front sunroof window, refer to Sunroof Window Replacement - Front .
  3. If adjusting the 2nd or 3rd sunroof window, refer to Sunroof Window Replacement - Middle .
  4. If adjusting the rear sunroof window, refer to Sunroof Window Replacement - Rear .
  5. Loosen the adjusting screws on each side of the sunroof window.

    6. Object Number: 1563272 Size: SH
  6. Adjust the sunroof window using the following guidelines:
    7. • Adjust the front sunroof window to be flush to the roof panel at flushness points (a), 90mm (3.5 in) in board on each side of the sunroof opening.
    • Adjust the 2nd sunroof window flush to 1 mm (0.04 in) below the top surface (b) of the front sunroof window at the same flushness points (a), 90mm (3.5 in) in board on each side of the sunroof opening.
    • Adjust the 3rd sunroof window flush to 1 mm (0.04 in) below the top surface (c) of the 2nd sunroof window at the same flushness points (a), 90mm (3.5 in) in board on each side of the sunroof opening.
    • Adjust the rear sunroof window flush to 1 mm (0.04 in) below the top surface (d) of the 3rd sunroof window at the same flushness points 90mm (3.5 in) in board on each side of the sunroof opening.

    Notice: Refer to Fastener Notice in the Preface section.

  7. Tighten the sunroof window adjustment screws.

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

  8. Perform the air leak test, as noted above.
  9. Inspect the operation of the sunroof window.
  10. Close the sunshade.

Sunroof Window Height and Opening Fit Adjustment CF5

  1. Open the sunshade.
  2. Close the sunroof window.

    3. Object Number: 1222454 Size: SH
  3. Loosen the 3 adjusting screws on each side of the sunroof window.

    4. Object Number: 876959 Size: MH
  4. Adjust the corners of the window panel (3) using the following guidelines:
    5. • Adjust the front of the sunroof window (2) flush to 1 mm (0.04 in) below the top surface of the roof panel.
    • Adjust the rear of the sunroof window (1) flush to 1 mm (0.04 in) above the top surface of the roof panel.

    Notice: Refer to Fastener Notice in the Preface section.

  5. Install the sunroof window adjustment screws.

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

  6. Inspect the sunroof for proper operation.