Keyless open and start

Years 2015–20, 2022–23, 2025–27 Models 12 Factory citations 38

Also described as Remote keyless entry, extended rangeRemote Keyless Entry, extended range with lock and unlock featureKeyless open, with 2 remote transmitters for automatic door unlock and open by touching the door switchKeyless open, extended range passive entry, all doorsKeyless open, extended range remote keyless entryRemote keyless entry, extended range, passive entryKeyless Open (extended-range remote keyless entry)

Also documented for Buick Cadillac Chevrolet

Documented applications

Acadia — Second generation (C1XX) (2017–2023)

2017–2019 Factory-verified

2019 guide: all trims: S

GM factory document — 2017 gmc acadia order guide copy gm authority, p.4, p.20.
GM factory document — 2018 gmc acadia order guide copy gm authority, p.5, p.26.
GM factory document — 2019 gmc acadia order guide copy gm authority, p.5, p.27.

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

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.2.
GM factory document — 2026 gmc hummer ev suv fleet order guide, p.3.

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.2.
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.4.

Sierra 1500 — Next-Generation (2027)

2027 Factory-verified

Pro: not offered; AT4, Elevation, AT4X, Denali, Denali Ultimate: included in the trim group; includes remote keyless entry with buttons on all 4 doors

GM factory document — 2027 gmc next generation sierra 1500 retail and fleet fleet order guide, p.14.
GM factory document — 2027 gmc next generation sierra 1500 retail and fleet fleet order guide rpo codes, p.1.

Sierra — T1XX (2019–2026)

2019–2020, 2022 Factory-verified

GM factory document — 2019 gmc 19 sierra 1500 body builder feb 20, p.10.
GM factory document — 2020 gmc 20 sierra 1500 electrical body buil 1, p.10.
GM factory document — 2022 gmc 22 sierra 1500 new electrical body builder sm en us 2022jul20, p.10.

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

2019 Factory-verified

all trims: S

GM factory document — 2019 gmc terrain order guide copy gm authority, p.4, p.30.

Yukon — K2XX (2015–2020)

2015–2018 Factory-verified

SLT, Denali; includes AQQ; the 2018 guide prints QQQ for AQQ in this entry; 2018 from GM's 2018 Yukon order guide

GM factory document — 2015 gmc yukon denali fleet order guide wayback, p.2.
GM factory document — 2016 gmc yukon denali fleet order guide wayback, p.2.
GM factory document — 2017 chevrolet escalade escalade esv suburban tahoe yukon yukon xl electrical body builders manual service manual 2017 en us 1, p.13.
GM factory document — 2018 gmc yukon order guide copy gm authority, p.25.

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.9.
GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9.
GM factory document — 2025 gmc new yukon denali fleet order guide, p.4.
GM factory document — 2026 gmc yukon denali fleet order guide, p.4.
GM factory document — 2027 gmc yukon fleet order guide, p.4.

Yukon XL — K2XX (2015–2020)

2015–2017 Factory-verified

SLE: not available

GM factory document — 2015 gmc yukon xl denali fleet order guide wayback, p.2.
GM factory document — 2016 gmc yukon xl denali fleet order guide wayback, p.2.
GM factory document — 2016 chevrolet escalade escalade esv suburban tahoe yukon yukon xl electrical body builders manual service manual 2016 en us, p.4.
GM factory document — 2017 chevrolet escalade escalade esv suburban tahoe yukon yukon xl electrical body builders manual service manual 2017 en us 1, p.13.

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.9.
GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9.
GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.4.
GM factory document — 2026 gmc yukon xl denali fleet order guide, p.4.
GM factory document — 2027 gmc yukon xl fleet order guide, p.4.

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