GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2009 🢒 Canyon Pickup - 2WD 🢒 Roof 🢒 Sunroof 🢒 Sunroof Window Seal Replacement

Removal Procedure
  1. Open the sunshade to the full open position.

    2. Object Number: 1774136 Size: SH
  2. Remove the sunroof window seal (1) from the upper frame (2).
    3. 2.1. Carefully remove the old seal.
    2.2. Open the sunroof window completely when working along the front and sides.
    2.3. Move the sunroof window into the maximum tilt position when working on the rear side.
  3. Remove the sunroof window seal from the upper frame.

    4. Object Number: 1774140 Size: SH
  4. Remove all traces of sealant from around the inside upper frame groove to prevent leaks.

    5. Object Number: 1774154 Size: SH
  5. Clean the upper frame as follows, clean around the inside surface and edges with a 50/50 mixture of isopropyl alcohol and water by volume on a dampened lint free cloth.

Installation Procedure

    Object Number: 1774143 Size: SH
  1. Install a adhesive sealant bead around the outside (1) of the groove of the upper frame 2 mm (1/16 in) thick.
  2. Install a adhesive sealant bead only along the front (2), on the inside of the groove 2 mm (1/16 in) thick.

    3. Object Number: 1774147 Size: SH

    Important: Put the seam of the sunroof window seal in the front under the window holder.

    This is done to prevent tension in the seal.

  3. Place the new sunroof window seal in the frame without pressure.

    4. Object Number: 1774150 Size: SH
  4. Install the front center under the window holder and push the sunroof window seal from the sides to the rear only 1 mm (1/32 in) into the groove.

    5. Object Number: 1774153 Size: SH
  5. Install the sunroof window seal entirely into the groove, the seal Must be kept flush fitted in the frame.

    6. Object Number: 1774154 Size: SH
  6. Remove excessive adhesive sealant from around the sunroof window seal.

    7. Object Number: 1774155 Size: SH
  7. The sunroof must remain open until the adhesive sealant is dry.
    8. • Check the curing time on the adhesive sealant.
    • If the sunroof window has to be close after repair , it is advisable to apply a strip of masking tape in the front center over the seal before closing. This is done to prevent the seal from pulling out of the groove,
    • When the repairs are completed and cured, water test the vehicle to ensure no leaks.
  8. Verify operations of the sunroof window.