77S ✓ Factory-verified

GMC · Regular Production Option

Label, regulatory, California Section 177 states

Years 2022–26 Models 1 Factory citations 2

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Also documented for Chevrolet

Documented applications

Savana — GMT610 (2003–2027) →

• 2022–2026 ✓ Factory-verified internal
  ⛭ GM factory document — 2022 chevrolet 22 express savana electrical body builder sm en us 2021oct12, p.12.

  ⛭ GM factory document — 2026 chevrolet my26 express savana electrical bbm, p.10.

This page aggregates every documented appearance of 77S in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.