Transmission, none

Years 2024–27 Models 4 Factory citations 16

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Also documented for Cadillac GMC

Documented applications

Blazer EV (2024–2027)

2024–2027 Factory-verified

GM factory document — 2024 chevrolet blazer ev fleet order guide wayback, p.1.
GM factory document — 2025 chevrolet blazer ev fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet blazer ev fleet order guide rpo codes, p.1.
GM factory document — 2027 chevrolet blazer ev fleet order guide rpo codes, p.1.

Bolt — second generation (2027)

2027 Factory-verified

LT, RS: S; electric drive unit

GM factory document — 2027 chevrolet new bolt fleet order guide, p.4.

Equinox EV — Ultium BEV2 (2024–2027)

2025–2027 Factory-verified

the guides print "(electric drive unit)"; 2026–2027: S in all trims

GM factory document — 2025 chevrolet new 25my equinox ev fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet equinox ev fleet order guide rpo codes, p.1.
GM factory document — 2027 chevrolet equinox ev fleet order guide rpo codes, p.1.
GM factory document — 2025 chevrolet new 25my equinox ev fleet order guide, p.8.
GM factory document — 2026 chevrolet equinox ev fleet order guide, p.7.
GM factory document — 2027 chevrolet equinox ev fleet order guide, p.7.

Silverado EV — BT1 (2024–2027)

2025–2027 Factory-verified

GM factory document — 2025 chevrolet silverado ev fleet order guide rpo codes, p.1.
GM factory document — 2027 chevrolet silverado ev fleet order guide rpo codes, p.1.
GM factory document — 2025 chevrolet silverado ev fleet order guide, p.12.
GM factory document — 2026 chevrolet silverado ev fleet order guide, p.16.
GM factory document — 2027 chevrolet silverado ev fleet order guide, p.14.

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