Trim group, Acadia Elevation, front-wheel drive

Years 2022, 2025–27 Models 3 Factory citations 7

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Also described as Trim group, AT4, extended rangeEquipment group 4SC, AT4

Documented applications

Acadia — Third generation (2024–2027)

2025–2027 Factory-verified

Elevation FWD: S; GM fleet model TLD56; shown in the trim headings of the guides; NICB prints the series as Elevation FWD (2026)

GM factory document — 2025 gmc acadia fleet order guide, p.1.
GM factory document — 2026 gmc acadia fleet order guide, p.1.
GM factory document — 2027 gmc acadia fleet order guide, p.1.

Sierra EV — BT1 (2024–2027)

2026–2027 Factory-verified

AT4

GM factory document — 2026 gmc sierra ev fleet order guide, p.1.
GM factory document — 2026 gmc sierra ev fleet order guide, p.47.
GM factory document — 2027 gmc sierra ev fleet order guide, p.1.
GM factory document — 2027 gmc sierra ev fleet order guide, p.46.

Terrain — Second generation (D2XX) (2018–2024)

2022 Single-source

new for 2022, AWD model TXC26 (GM Authority 2022 changes page); NICB 2022 p.168 prints the AT4 series, AWD only

This page aggregates every documented appearance of 4SC in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.