MF1 ✓ Factory-verified

GMC · Regular Production Option

Transmission, none (electric drive unit)

Years 2025–27 Models 3 Factory citations 8

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Also described as Transmission, none

Also documented for CadillacChevrolet

Documented applications

Hummer EV Pickup (2022–2027) →

• 2025–2026 ✓ Factory-verified
  ⛭ GM factory document — 2025 gmc hummer ev pickup fleet order guide rpo codes, p.1.

  ⛭ GM factory document — 2026 gmc hummer ev pickup fleet order guide rpo codes, p.1.

Hummer EV SUV — BT1 (2024–2027) →

• 2025–2026 ✓ Factory-verified
  ⛭ GM factory document — 2025 gmc hummer ev suv fleet order guide, p.6.

  ⛭ GM factory document — 2026 gmc hummer ev suv fleet order guide, p.7.

Sierra EV — BT1 (2024–2027) →

• 2025–2027 ✓ Factory-verified
  ⛭ 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.6.

  ⛭ 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.11.

This page aggregates every documented appearance of MF1 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.