CFF ✓ Factory-verified

GMC · Regular Production Option

Roof, panoramic fixed glass, with infrared reflective coating and dark tint

Years 2025–27 Models 1 Factory citations 4

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Also documented for Chevrolet

Documented applications

Sierra EV — BT1 (2024–2027) →

• 2025–2027 ✓ Factory-verified

  2026 and 2027: requires PDM on the AT4; included with YDH and YDM on the Denali; 2025: S in 5SC, 5SD; 2026: S in 4SD, 5SD; A in 4SC, 5SC; not offered in 3SB, 3SC, 5SB; 2027: S in 4SD, 5SD; A in 4SC, 5SC; not offered in 3SB, 3SC

  ⛭ GM factory document — 2025 gmc sierra ev denali fleet order guide rpo codes, p.1.

  ⛭ GM factory document — 2025 gmc sierra ev denali fleet order guide, p.4.

  ⛭ GM factory document — 2027 gmc sierra ev fleet order guide rpo codes, p.1.

  ⛭ GM factory document — 2027 gmc sierra ev fleet order guide, p.8.

Related codes · mentioned in these notes

3SB3SC4SC4SD5SB5SC5SDPDMYDHYDM

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