A proper windshield glass installation process starts with cleaning the windshield glass through stopper and adhesive removal followed by dam scraping. Perform the operation while protecting the glass from damage. Next clean the window frame edges using a non-residue solvent but avoid touching the surface. You should clean the vehicle body through knife use to shape the contact area free of rough adhesive before employing a shop rag or cloth for further cleaning. The application area needs to be coated with Primer G before installation of new No. 2 stoppers on windshield glass while the drying time needs to be at least 3 minutes. The same procedure should be used to install 2 new No. 1 stoppers on the vehicle body framework. Install new adhesive dams on the ceramic notches after applying Primer G to the dedicated area and waiting for drying time. The windshield outside upper moulding requires coating its edge and contact surface with Primer G before allowing them to dry completely before installation. Begin by positioning the windshield glass with suction cups before aligning matchmarks and enabling the contact surface to maintain evenness. Then apply Primer M to the vehicle body installation area but avoid coating the adhesive area before letting the substance dry. Prepare areas containing adhesive with Primer G and apply Toyota Genuine Windshield Glass Adhesive or an equivalent to the glass surface by cutting the cartridge tip while ensuring complete adhesive usage before a specific time limit. After checking the stoppers and clearance while pressing gently against the glass rim with a scraper to achieve proper adhesive levels one should use protective tape to secure the windshield until the adhesive hardens. Test the leak resistance by applying water from outside after adhesive setting. In case of leaks, perform needed adhesive reapplication. Finally, install the inner rear view mirror assembly, roof headlining assembly, assist grip plug, assist grip sub-assembly, visor assemblies, visor bracket covers, room light assemblies, roof console box assembly, front pillar garnishes, front door opening trim Weather Strips, cowl side trim boards, front door scuff plates, cowl top ventilator louver sub-assembly, front fender to cowl side seals, front wiper arm and blade assemblies, reconnect the negative battery terminal with a torque of 5.4 Nm, and inspect the SRS warning light.