GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2009 🢒 XLR 🢒 Body Systems 🢒 Fixed and Moveable Windows 🢒 Door Window Major Height Adjustment

Warning: Refer to Express Down Feature Warning in the Preface section.

  1. Raise the door window.

    2. Object Number: 63818 Size: SH
  2. Remove the door trim panel. Refer to Door Trim Panel Replacement.

    3. Object Number: 63834 Size: SH
  3. Remove the mastic sealer from the window clamp access holes.

    4. Object Number: 63801 Size: SH
  4. Loosen the window clamps on the window regulator.
  5. Jiggle the window to break the window loose from the clamps rubber seals. Verify that the rubber inserts are not dislodged, or stuck on the window.
  6. Note the imprinted reference mark on the glass. Position the mark to the trailing edge of the rearmost clamp on the window regulator.

    7. Object Number: 1285768 Size: SH
  7. Apply masking tape to the leading (1), and top edges (2) of the outer window.
  8. Place a mark on the leading edge tape (1) 8 mm (0.3 in) from the top of the window.
  9. Place a mark on the top tape edges at (2), 10 mm (0.4 in) from the top of the window.
  10. Adjust the window using one of the following methods:
    11. • Put a socket on the clamp bolt and use the socket to move the window.
         1. Adjust the window forward or rearward first.
         2. Adjust the front height second.
         3. Adjust the rear height last.
    • Sit in the vehicle with the door closed and with the aid of an assistant standing outside of the vehicle, position the window in the door opening.
         1. Adjust the window forward or rearward first.
         2. Adjust the front height second.
         3. Adjust the rear height last.
  11. Slide the window in the window clamps as necessary.
    12. • The window should penetrate the leading seal (1) 8 mm (0.3 in).
    • The window should penetrate the top seal at (2) and (3) 10 mm (0.4 in).

    Caution: Refer to Fastener Caution in the Preface section.

  12. Tighten the window regulator clamp bolts to 16 N·m (12 lb ft).
  13. Carefully open the door, noting any interference between the window and seals.

    14. Object Number: 63834 Size: SH
  14. Install new mastic sealer to the window clamp access holes.

    15. Object Number: 63818 Size: SH
  15. Install the door trim panel. Refer to Door Trim Panel Replacement.
  16. Perform minor height and minor tip-in adjustments as necessary. Refer to Door Window Tip-In Adjustment and Door Window Minor Height Adjustment.