Removal Procedure
- Remove the headliner. Refer to Headlining Trim Panel Replacement.
- Starting in one corner of the cardboard, pulling downward, cut the adhesive beads (1) using a sharp putty knife or equivalent.
- Cut off all of the adhesive beads.
- Remove the cardboard roof insulator.
Caution: Do not attempt to repair or alter the head impact energy-absorbing material glued to the headliner or to the garnish trims. If the material is damaged, replace the headliner and/or the garnish trim. Failure to do so could result in personal injury.
Notice: Use care when removing the cardboard roof insulator. Excessive pressure can cause dents in the roof panel.
Important: It is not necessary to remove all of the old adhesive from the roof panel.
Installation Procedure
- Apply beads of adhesive to a height (2) of 6-9 mm (1/4-3/8 in) and a width (1) of 15 mm (5/8 in).
- Apply the adhesive in the locations marked on the cardboard insulator (1).
- Place the cardboard roof insulator to the roof panel.
- Install the headliner. Refer to Headlining Trim Panel Replacement.
Important: Installation of a new cardboard roof insulator is necessary to ensure the acoustical integrity of the roof system. Use GM P/N 12378192 Adhesive available through General Motors Service Parts Operations.
Important: The cardboard roof insulator must be installed within five minutes of adhesive application.
Important: Gluing the headliner to the cardboard roof insulator during installation is not required.
