Trim group, SLE

Years 2008–09, 2014–27 Models 13 Factory citations 42

Also described as Package, SLE option 1Equipment group, SLE-1Equipment group 3SA, SLETrim group, Terrain Elevation, front-wheel driveEquipment group, SLE

Documented applications

Acadia — first generation, Lambda (2007–2017)

2008–2009, 2014–2016 Factory-verified

2014–2016 guides: equipment group SLE-1.

GM factory document — 2008 gmc acadia 2wd rpo code list, p.1.
GM factory document — 2009 gmc acadia 2wd rpo code list, p.1.
GM factory document — 2014 gmc acadia fleet order guide wayback, p.1.
GM factory document — 2015 gmc acadia fleet order guide wayback, p.1.
GM factory document — 2016 gmc acadia fleet order guide wayback, p.1.

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

2017–2021 Factory-verified

SLE-1 in the 2017–2019 guides; the SLE from 2020, when GM Authority's 2020 changes page drops the SLE-2; 2020: GM Authority 2020 Acadia page; 2021: GM Authority 2021 Acadia page

GM factory document — 2017 gmc acadia order guide copy gm authority, p.1, p.29.
GM factory document — 2018 gmc acadia order guide copy gm authority, p.1, p.37.
GM factory document — 2019 gmc acadia order guide copy gm authority, p.1, p.39.

Sierra HD — K2XX (2015–2019)

2015, 2018–2019 Factory-verified

2018: GM's 2018 Sierra 2500HD order guide; 2019: GM's 2019 Sierra 3500HD order guide

GM factory document — 2015 gmc sierra 2500hd fleet order guide wayback, p.1.
GM factory document — 2018 gmc sierra 2500hd order guide copy gm authority, p.55.
GM factory document — 2019 gmc sierra 3500hd order guide copy gm authority, p.52.

Sierra HD — T1XX (2020–2027)

2025–2027 Factory-verified

all three vehicles

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

Sierra — K2XX (2014–2019)

2014, 2016, 2018–2019 Factory-verified

GM factory document — 2014 gmc sierra 1500 fleet order guide wayback, p.1.
GM factory document — 2016 gmc sierra 1500 fleet order guide wayback, p.1.
GM factory document — 2018 gmc sierra 1500 order guide copy gm authority, p.3.
GM factory document — 2019 gmc sierra 1500 limited double cab k2xx order guide copy gm authority, p.4.

Sierra — T1XX (2019–2026)

2019–2020, 2022–2026 Factory-verified

the upfitter lists read "Package, SLE option 1"

GM factory document — 2019 gmc 19 sierra 1500 body builder feb 20, p.9.
GM factory document — 2020 gmc 20 sierra 1500 electrical body buil 1, p.9.
GM factory document — 2022 gmc 22 sierra 1500 new electrical body builder sm en us 2022jul20, p.10.
GM factory document — 2023 gmc 23 sierra 1500 electrical body builder sm en us 2022oct12, p.9.
GM factory document — 2024 gmc 24 sierra 1500 sm electrical body builder esid 23dec12, p.10.
GM factory document — 2025 gmc my25 sierra 1500 electrical bbm, p.8.
GM factory document — 2025 gmc sierra 1500 retail and fleet fleet order guide, p.167.
GM factory document — 2026 gmc sierra 1500 retail and fleet fleet order guide, p.83, p.84.

Terrain — First generation (2010–2017)

2016–2017 Factory-verified

models TLF26 (FWD) and TLG26 (AWD)

GM factory document — 2016 gmc terrain fleet order guide wayback, p.2.
GM factory document — 2017 gmc terrain fleet order guide wayback, p.2.

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

2019 Factory-verified

FWD and AWD models (TXL26, TXB26)

GM factory document — 2019 gmc terrain order guide copy gm authority, p.1, p.47.

Terrain — Third generation (2025–2027)

2025–2027 Factory-verified

Elevation FWD: S; GM fleet model TPB26; shown in the trim headings of the guides; NICB prints the series as Elevation FWD (2025 and 2026, VIN positions 5 and 6 LM)

GM factory document — 2025 gmc next generation terrain fleet order guide, p.1.
GM factory document — 2026 gmc next generation terrain fleet order guide, p.1.
GM factory document — 2027 gmc terrain fleet order guide, p.1.

Yukon — K2XX (2015–2020)

2015–2016, 2018–2019 Factory-verified

the guides' SLE column; NICB lists SLE for 2015–2020; 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 — 2019 gmc yukon denali fleet order guide wayback, p.1.
GM factory document — 2018 gmc yukon order guide copy gm authority, p.1.
2020 Single-source

GM Authority's 2020 Yukon page (trim groups); no factory list or order guide read for 2020; the page does not credit GM for its codes

Yukon — T1XX (2021–2027)

2022–2023 Factory-verified

listed as SLE option 1

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.

Yukon XL — K2XX (2015–2020)

2015–2016 Factory-verified

the guides head the SLE column with 3SA (order model T*15906)

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.
2019 Single-source

GM Authority's 2019 Yukon page, which covers the Yukon and Yukon XL (trim groups); no factory list or order guide read for 2019; the page does not credit GM for its codes

Yukon XL — T1XX (2021–2027)

2022–2023 Factory-verified

listed as SLE option 1

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.

This page aggregates every documented appearance of 3SA in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.