HS1 Factory-verified

GMC · Regular Production Option

Safety alert seat

Years 2019–20, 2022–27 Models 12 Factory citations 46

Query this via API →

Also described as Safety Alert Seat

Also documented for Buick Cadillac Chevrolet

Documented applications

Acadia — Third generation (2024–2027)

2025–2027 Factory-verified

S on all trims

GM factory document — 2025 gmc acadia fleet order guide, p.6.
GM factory document — 2026 gmc acadia fleet order guide, p.7.
GM factory document — 2027 gmc acadia fleet order guide, p.8.

Canyon — Third generation (VSS-T) (2023–2027)

2023–2027 Factory-verified

2025: AT4: O; Denali: included in a package; Elevation: not offered; 2026–2027: AT4X, Denali: included in a package; Elevation, AT4: not offered

GM factory document — 2023 gmc 23canyon electrical body builder 2023march13, p.11.
GM factory document — 2024 gmc 24 canyon electrical body builder manual 2023oct04, p.11.
GM factory document — 2025 gmc canyon fleet order guide, p.8.
GM factory document — 2026 gmc canyon fleet order guide, p.11.
GM factory document — 2027 gmc canyon fleet order guide, p.11.

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.1.
GM factory document — 2026 gmc hummer ev suv fleet order guide, p.1.

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.1.
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.3.

Sierra 1500 — Next-Generation (2027)

2027 Factory-verified

all trims: included in the trim group

GM factory document — 2027 gmc next generation sierra 1500 retail and fleet fleet order guide, p.11.
GM factory document — 2027 gmc next generation sierra 1500 retail and fleet fleet order guide rpo codes, p.1.

Sierra HD — T1XX (2020–2027)

2025–2027 Factory-verified

only in: 2500 HD and 3500 HD pickup; SLT: O; AT4, AT4X, Denali, Denali Ultimate: included in the trim group; Pro, SLE: not offered

GM factory document — 2025 gmc sierra 2500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2026 gmc sierra 2500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2027 gmc sierra 2500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2025 gmc sierra 2500 hd retail and fleet fleet order guide, p.14.
GM factory document — 2026 gmc sierra 2500 hd retail and fleet fleet order guide, p.12.
GM factory document — 2027 gmc sierra 2500 hd retail and fleet fleet order guide, p.11.

Sierra — T1XX (2019–2026)

2019–2020, 2022–2026 Factory-verified

the upfitter lists read "Alert, safety haptic seat"

GM factory document — 2019 gmc 19 sierra 1500 body builder feb 20, p.11.
GM factory document — 2020 gmc 20 sierra 1500 electrical body buil 1, p.12.
GM factory document — 2022 gmc 22 sierra 1500 new electrical body builder sm en us 2022jul20, p.12.
GM factory document — 2023 gmc 23 sierra 1500 electrical body builder sm en us 2022oct12, p.11.
GM factory document — 2024 gmc 24 sierra 1500 sm electrical body builder esid 23dec12, p.13.
GM factory document — 2025 gmc my25 sierra 1500 electrical bbm, p.11.
GM factory document — 2025 gmc sierra 1500 retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2026 gmc sierra 1500 retail and fleet fleet order guide rpo codes, p.1.

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

2019 Factory-verified

SLE, SLE Diesel, SLT, SLT Diesel: O; Denali: S; with B26 only; code added to the guide in April 2018

GM factory document — 2019 gmc terrain order guide copy gm authority, p.6, p.34.

Terrain — Third generation (2025–2027)

2025–2027 Factory-verified

S on all trims

GM factory document — 2025 gmc next generation terrain fleet order guide, p.2.
GM factory document — 2026 gmc next generation terrain fleet order guide, p.3.
GM factory document — 2027 gmc terrain fleet order guide, p.3.

Yukon — T1XX (2021–2027)

2022–2023, 2025–2027 Factory-verified

2027: S on all trims

GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10.
GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11.
GM factory document — 2025 gmc new yukon denali fleet order guide, p.5.
GM factory document — 2026 gmc yukon denali fleet order guide, p.5.
GM factory document — 2027 gmc yukon fleet order guide, p.5.

Yukon XL — T1XX (2021–2027)

2022–2023, 2025–2027 Factory-verified

2027: S on all trims

GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10.
GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11.
GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.5.
GM factory document — 2026 gmc yukon xl denali fleet order guide, p.5.
GM factory document — 2027 gmc yukon xl fleet order guide, p.5.

This page aggregates every documented appearance of HS1 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.