TechnicianVision · Knowledge base
GM Glass Replacement Requirements: UPDATE
I-CAR · July 31, 2026 · Chevrolet, GMC, Buick, Cadillac
Summary
This article outlines GM's strict requirements for stationary glass replacement, including the mandatory use of GM OE glass on vehicles with ADAS and the requirement to calibrate the frontview camera after windshield replacement or R&I. It also details specific adhesive application procedures, pinch-weld preparation, and the use of FMVSS 212 compliant urethane to maintain structural integrity.
What to do on the job
Calibrate the frontview camera module after any windshield replacement or R&I, use only GM OE glass, and apply FMVSS 212 compliant urethane adhesive without intermixing primers.
How to use it
Use this document to justify the necessity of OEM glass over aftermarket alternatives by citing GM's position statement prohibiting aftermarket glass due to ADAS calibration and optical clarity standards. Additionally, use it to support line items for frontview camera calibration after windshield R&I or replacement, and to justify labor and materials for proper pinch-weld refinishing and priming if corrosion or sheet metal repairs are present.
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