ETN ✓ Factory-verified

GMC · Regular Production Option

Battery pack, 24 module

Years 2022, 2024–27 Models 2 Factory citations 8

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Also described as Battery pack, max range

Also documented for CadillacChevrolet

Documented applications

Hummer EV Pickup (2022–2027) →

• 2022, 2024–2026 ✓ Factory-verified

  2022: NICB 2022 p.171; 2024: EV3X only, GM Authority 2024 changes page

  ⛭ 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.

  ⛭ GM factory document — 2025 gmc hummer ev pickup fleet order guide, p.12.

  ⛭ GM factory document — 2026 gmc hummer ev pickup fleet order guide, p.14.

Sierra EV — BT1 (2024–2027) →

• 2025–2027 ✓ Factory-verified

  2025: S in 5SD; not offered in 5SC; 2026: S in 4SD, 5SD; not offered in 3SB, 3SC, 4SC, 5SB, 5SC; 2027: S in 4SD, 5SD; not offered in 3SB, 3SC, 4SC, 5SC

  ⛭ 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.

Related codes · mentioned in these notes

3SB3SC4SC4SD5SB5SC5SD

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