Trim group, Z71

Years 2019–20, 2022–23, 2025–27 Models 4 Factory citations 15

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Also described as Equipment group, Z71, 2WDTrim group, Traverse Z71, all-wheel drive

Documented applications

Colorado — Second generation (GMT31XX) (2015–2022)

2019–2020 Single-source

from GM Authority's 2019 Colorado page and GM Authority's 2020 Colorado page (trim levels); the 2015 and 2018 GM guides print the code only with a footnote digit

Suburban — T1XX (2021–2027)

2022–2023, 2025–2027 Factory-verified

the body-builder lists name it Z71 option 1

GM factory document — 2025 chevrolet new suburban fleet order guide, p.1.
GM factory document — 2026 chevrolet suburban fleet order guide, p.1.
GM factory document — 2027 chevrolet suburban fleet order guide, p.1.
GM factory document — 2022 chevrolet 22 suburban tahoe electrical body builder sm u 2021oct08, p.9.
GM factory document — 2023 chevrolet 23 suburban tahoe electrical body builder sm en us 2022sep13, p.9.
GM factory document — 2026 chevrolet suburban tahoe electrical body builder manual service manual 2026 en us, p.4.

Tahoe — T1XX (2021–2027)

2022–2023, 2025–2027 Factory-verified

the body-builder lists name it Z71 option 1

GM factory document — 2025 chevrolet new tahoe retail and fleet fleet order guide, p.1.
GM factory document — 2026 chevrolet tahoe retail and fleet fleet order guide, p.1.
GM factory document — 2027 chevrolet tahoe retail and fleet fleet order guide, p.1.
GM factory document — 2022 chevrolet 22 suburban tahoe electrical body builder sm u 2021oct08, p.9.
GM factory document — 2023 chevrolet 23 suburban tahoe electrical body builder sm en us 2022sep13, p.9.
GM factory document — 2026 chevrolet suburban tahoe electrical body builder manual service manual 2026 en us, p.4.

Traverse — Third generation (2024–2027)

2025–2027 Factory-verified

Z71: S; GM fleet model 1LC56; shown in the trim headings of the guides

GM factory document — 2025 chevrolet traverse fleet order guide, p.1.
GM factory document — 2026 chevrolet traverse fleet order guide, p.1.
GM factory document — 2027 chevrolet traverse fleet order guide, p.1.

This page aggregates every documented appearance of 2Z7 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.