CTT Factory-verified

Chevrolet · Regular Production Option

Hitch guidance

Years 2018–27 Models 11 Factory citations 54

Query this via API →

Also described as Trailering assist, guidelinesHitch Guidance

Also documented for Buick Cadillac GMC

Documented applications

Blazer — C1XX (2019–2026)

2019, 2025–2026 Factory-verified

2LT, 3LT, RS: O; Premier: O (2025 only); the 2019 guide marks it AWD only

GM factory document — 2019 chevrolet all new blazer fleet order guide wayback, p.4.
GM factory document — 2025 chevrolet blazer fleet order guide rpo codes, p.1.
GM factory document — 2025 chevrolet blazer fleet order guide, p.36.
GM factory document — 2026 chevrolet blazer fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet blazer fleet order guide, p.26.

Blazer EV (2024–2027)

2024–2027 Factory-verified

GM factory document — 2024 chevrolet blazer ev fleet order guide wayback, p.1.
GM factory document — 2025 chevrolet blazer ev fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet blazer ev fleet order guide rpo codes, p.1.
GM factory document — 2027 chevrolet blazer ev fleet order guide rpo codes, p.1.

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

2018–2019, 2021–2022 Factory-verified

new for 2018; with 5G8; the upfitter lists name it hitch assist guidelines; 2018 from GM's 2018 Colorado order guide (PDF); 2021 from the upfitter list GM files for 2021 and 2022

GM factory document — 2019 chevrolet 19 coloradocanyon body builder sm u 2018aug01 1, p.9.
GM factory document — 2022 chevrolet 22 canyon colorado electrical body builder sm en us 2021oct15, p.10.
GM factory document — 2018 chevrolet colorado order guide copy gm authority, p.14.

Colorado — Third generation (2023–2027)

2023–2027 Factory-verified

S on all trims

GM factory document — 2023 chevrolet 23colorado electrical body builder, p.10.
GM factory document — 2024 chevrolet 24colorado electrical body builder manual 18272478 2023oct09, p.11.
GM factory document — 2025 chevrolet colorado fleet order guide, p.50.
GM factory document — 2026 chevrolet colorado fleet order guide, p.56.
GM factory document — 2027 chevrolet colorado fleet order guide, p.55.

Equinox EV — Ultium BEV2 (2024–2027)

2025–2027 Factory-verified

2025–2027: S in LT 2 (included with and only available with ZL3 or 6K5); S in RS; not offered in LT 1

GM factory document — 2025 chevrolet new 25my equinox ev fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet equinox ev fleet order guide rpo codes, p.1.
GM factory document — 2027 chevrolet equinox ev fleet order guide rpo codes, p.1.
GM factory document — 2025 chevrolet new 25my equinox ev fleet order guide, p.7.
GM factory document — 2026 chevrolet equinox ev fleet order guide, p.7.
GM factory document — 2027 chevrolet equinox ev fleet order guide, p.7.

Silverado EV — BT1 (2024–2027)

2025–2027 Factory-verified

GM factory document — 2025 chevrolet silverado ev fleet order guide rpo codes, p.1.
GM factory document — 2027 chevrolet silverado ev fleet order guide rpo codes, p.1.
GM factory document — 2025 chevrolet silverado ev fleet order guide, p.10.
GM factory document — 2026 chevrolet silverado ev fleet order guide, p.14.
GM factory document — 2027 chevrolet silverado ev fleet order guide, p.12.

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.10.
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 — 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.10.
GM factory document — 2023 chevrolet 23 silverado 1500 electrical body builder sm en us 2022oct24, p.10.
GM factory document — 2024 chevrolet 24 silverado1500 electrical body builder 2023nov29, p.12.
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 — T1XX (2021–2027)

2022–2023, 2025–2027 Factory-verified

2027: S on all trims

GM factory document — 2025 chevrolet new suburban fleet order guide, p.7.
GM factory document — 2026 chevrolet suburban fleet order guide, p.8.
GM factory document — 2027 chevrolet suburban fleet order guide, p.8.
GM factory document — 2022 chevrolet 22 suburban tahoe electrical body builder sm u 2021oct08, p.10.
GM factory document — 2023 chevrolet 23 suburban tahoe electrical body builder sm en us 2022sep13, p.10.
GM factory document — 2026 chevrolet suburban tahoe electrical body builder manual service manual 2026 en us, p.6.

Tahoe — T1XX (2021–2027)

2022–2023, 2025–2027 Factory-verified

2027: S on all trims

GM factory document — 2025 chevrolet new tahoe retail and fleet fleet order guide, p.7.
GM factory document — 2026 chevrolet tahoe retail and fleet fleet order guide, p.8.
GM factory document — 2027 chevrolet tahoe retail and fleet fleet order guide, p.8.
GM factory document — 2027 chevrolet tahoe police package and special service fleet order guide, p.7.
GM factory document — 2022 chevrolet 22 suburban tahoe electrical body builder sm u 2021oct08, p.10.
GM factory document — 2023 chevrolet 23 suburban tahoe electrical body builder sm en us 2022sep13, p.10.
GM factory document — 2026 chevrolet suburban tahoe electrical body builder manual service manual 2026 en us, p.6.

Traverse — Third generation (2024–2027)

2025–2027 Factory-verified

S on all trims

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 CTT in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.