JHD Factory-verified

Chevrolet · Regular Production Option

Hill descent control

Years 2015–27 Models 12 Factory citations 53

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Also described as Control, hill descent, gear holdHill Descent Control

Also documented for Buick GMC

Documented applications

City Express (2015–2018)

2017–2018 Factory-verified

the 2015 list does not print it

GM factory document — 2017 chevrolet city express electrical body builders manual service manual 2017 en us, p.8.
GM factory document — 2018 chevrolet 18 city express bodybuilders sm 2 w cvr pg, p.10.

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

2015–2019, 2021–2022 Factory-verified

2015: Z71: S; Base, WT, LT: not offered; the upfitter lists add gear hold; 2018 from GM's 2018 Colorado order guide (PDF); 2021 from the upfitter list GM files for 2021 and 2022

GM factory document — 2015 chevrolet colorado fleet order guide wayback, p.4.
GM factory document — 2016 chevrolet canyon colorado electrical body builders manual service manual 2016 en us, p.10.
GM factory document — 2017 chevrolet canyon colorado electrical body builders manual service manual 2017 en us, p.11.
GM factory document — 2019 chevrolet 19 coloradocanyon body builder sm u 2018aug01 1, p.10.
GM factory document — 2022 chevrolet 22 canyon colorado electrical body builder sm en us 2021oct15, p.11.
GM factory document — 2018 chevrolet colorado order guide copy gm authority, p.12.

Silverado 1500 — Fifth generation (2027)

2027 Factory-verified

GM factory document — 2027 chevrolet next generation silverado 1500 retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2027 chevrolet next generation silverado 1500 retail and fleet fleet order guide, p.34.

Silverado HD — K2XX (2015–2019)

2016–2019 Factory-verified

2017: GM's 2017 Silverado 2500HD order guide; 2018: GM's 2018 Silverado 2500HD order guide; 2019: GM's 2019 Silverado 2500HD order guide

GM factory document — 2016 chevrolet silverado 2500hd fleet order guide wayback, p.4.
GM factory document — 2017 chevrolet silverado 2500hd order guide revised august 12 2016 copy gm authority, p.56.
GM factory document — 2018 chevrolet silverado 2500hd order guide copy gm authority, p.71.
GM factory document — 2019 chevrolet silverado 2500hd order guide april 20 2018 iteration 2 copy gm authority, p.72.

Silverado HD (T1XX, 2020–2027)

2023, 2025–2027 Factory-verified

only in: 2500 HD, 3500 HD

GM factory document — 2023 chevrolet 23silverado 2500 3500hd electrical body builder sm en us 2022oct12, p.11.
GM factory document — 2025 chevrolet silverado 2500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet silverado 2500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2027 chevrolet silverado 2500 hd retail and fleet fleet order guide rpo codes, p.1.

Silverado — K2XX (2014–2019)

2015, 2017 Factory-verified

GM factory document — 2015 chevrolet silverado 1500 fleet order guide wayback, p.1.
GM factory document — 2017 chevrolet sierra silverado electrical body builders manual service manual 2017 en us, p.22.

Silverado — T1XX (2019–2026)

2020, 2022–2026 Factory-verified

GM factory document — 2020 chevrolet silverado 1500 fleet order guide wayback, p.1.
GM factory document — 2022 chevrolet 22 silverado 1500 new electrical body builder 042822, p.11.
GM factory document — 2023 chevrolet 23 silverado 1500 electrical body builder sm en us 2022oct24, p.11.
GM factory document — 2024 chevrolet 24 silverado1500 electrical body builder 2023nov29, p.14.
GM factory document — 2025 chevrolet silverado 1500 retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet silverado 1500 retail and fleet fleet order guide rpo codes, p.1.

Suburban — K2XX (2015–2020)

2015–2019 Factory-verified

LT: A, only with Z71 (2015: or TUF); LS, LTZ: not available; 2018–2019 from GM's 2018 and 2019 Suburban order guides (GM Authority copies)

GM factory document — 2015 chevrolet suburban fleet order guide wayback, p.4.
GM factory document — 2016 chevrolet suburban fleet order guide wayback, p.4.
GM factory document — 2016 chevrolet escalade escalade esv suburban tahoe yukon yukon xl electrical body builders manual service manual 2016 en us, p.9.
GM factory document — 2017 chevrolet escalade escalade esv suburban tahoe yukon yukon xl electrical body builders manual service manual 2017 en us 1, p.22.
GM factory document — 2018 chevrolet suburban order guide copy gm authority, p.59.
GM factory document — 2019 chevrolet suburban order guide copy gm authority, p.61.

Suburban — T1XX (2021–2027)

2022–2023, 2025–2027 Factory-verified

2027: Z71: S; LS, LT, RST, Premier, High Country: O

GM factory document — 2025 chevrolet new suburban fleet order guide, p.11.
GM factory document — 2026 chevrolet suburban fleet order guide, p.11.
GM factory document — 2027 chevrolet suburban fleet order guide, p.11.
GM factory document — 2022 chevrolet 22 suburban tahoe electrical body builder sm u 2021oct08, p.11.
GM factory document — 2023 chevrolet 23 suburban tahoe electrical body builder sm en us 2022sep13, p.11.
GM factory document — 2026 chevrolet suburban tahoe electrical body builder manual service manual 2026 en us, p.7.

Tahoe — K2XX (2015–2020)

2015–2019 Factory-verified

LT: A, only with Z71; LS, LTZ: not available; 2018–2019 from GM's 2018 and 2019 Tahoe order guides (GM Authority copies)

GM factory document — 2015 chevrolet tahoe fleet order guide wayback, p.5.
GM factory document — 2016 chevrolet tahoe fleet order guide wayback, p.4.
GM factory document — 2016 chevrolet escalade escalade esv suburban tahoe yukon yukon xl electrical body builders manual service manual 2016 en us, p.9.
GM factory document — 2017 chevrolet escalade escalade esv suburban tahoe yukon yukon xl electrical body builders manual service manual 2017 en us 1, p.22.
GM factory document — 2018 chevrolet tahoe order guide copy gm authority, p.61.
GM factory document — 2019 chevrolet tahoe order guide copy gm authority, p.64.

Tahoe — T1XX (2021–2027)

2022–2023, 2025–2027 Factory-verified

2027: Z71: S; LS, LT, RST, Premier, High Country: O

GM factory document — 2025 chevrolet new tahoe retail and fleet fleet order guide, p.13.
GM factory document — 2026 chevrolet tahoe retail and fleet fleet order guide, p.13.
GM factory document — 2027 chevrolet tahoe retail and fleet fleet order guide, p.13.
GM factory document — 2022 chevrolet 22 suburban tahoe electrical body builder sm u 2021oct08, p.11.
GM factory document — 2023 chevrolet 23 suburban tahoe electrical body builder sm en us 2022sep13, p.11.
GM factory document — 2026 chevrolet suburban tahoe electrical body builder manual service manual 2026 en us, p.7.

Traverse — Third generation (2024–2027)

2025–2027 Factory-verified

Z71: S; LT, High Country, RS: not offered

GM factory document — 2025 chevrolet traverse fleet order guide, p.9.
GM factory document — 2026 chevrolet traverse fleet order guide, p.9.
GM factory document — 2027 chevrolet traverse fleet order guide, p.9.
2024 Single-source

decoderpo.com's 2024 ALL-NEW Traverse order guide page lists it on its Standart Equipment tab (LS, LT, Z71); the page is a T3 mirror of GM's guide and the repository holds no GM document for 2024

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