- 2025–2027 Factory-verified
S on all trims
ARU Factory-verified
Also described as Window, side rear, tempered, privacy glazingGlass, privacy glazing, rear side windows
Also documented for BuickCadillacChevrolet
Documented applications
- 2023–2024, 2026 Factory-verified
- 2025–2026 Factory-verified
the rpo-code lists print only "Window"
- 2025–2026 Factory-verified
- 2025–2027 Factory-verified
the rpo-code lists print only "Window"
- 2025–2027 Factory-verified
S on all trims
This page aggregates every documented appearance of ARU in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.