CTT ✓ Factory-verified

GMC · Regular Production Option

Hitch guidance

Years 2019–20, 2022–27 Models 9 Factory citations 40

Query this via API →

Also described as Hitch Guidance, trailering assist guidelineHitch Guidance

Also documented for BuickCadillacChevrolet

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.11.

  ⛭ GM factory document — 2026 gmc acadia fleet order guide, p.11.

  ⛭ GM factory document — 2027 gmc acadia fleet order guide, p.13.

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

• 2023–2027 ✓ Factory-verified

  S on all trims

  ⛭ GM factory document — 2023 gmc 23canyon electrical body builder 2023march13, p.10.

  ⛭ GM factory document — 2024 gmc canyon fleet order guide wayback, p.1.

  ⛭ GM factory document — 2025 gmc canyon fleet order guide, p.6.

  ⛭ GM factory document — 2026 gmc canyon fleet order guide, p.7.

  ⛭ GM factory document — 2027 gmc canyon fleet order guide, p.7.

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.5.

  ⛭ GM factory document — 2026 gmc hummer ev suv fleet order guide, p.6.

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.5.

  ⛭ 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.10.

Sierra HD — T1XX (2020–2027) →

• 2025–2027 ✓ Factory-verified

  only in: 2500 HD and 3500 HD pickup; dynamic single line to aid trailer alignment for hitching; Pro, SLE, SLT, AT4, AT4X, Denali, Denali Ultimate: S

  ⛭ 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.11.

  ⛭ GM factory document — 2026 gmc sierra 2500 hd retail and fleet fleet order guide, p.10.

  ⛭ GM factory document — 2027 gmc sierra 2500 hd retail and fleet fleet order guide, p.8.

Sierra — T1XX (2019–2026) →

• 2019–2020, 2022–2026 ✓ 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.11.

  ⛭ GM factory document — 2022 gmc 22 sierra 1500 new electrical body builder sm en us 2022jul20, p.11.

  ⛭ GM factory document — 2023 gmc 23 sierra 1500 electrical body builder sm en us 2022oct12, p.10.

  ⛭ GM factory document — 2024 gmc 24 sierra 1500 sm electrical body builder esid 23dec12, p.12.

  ⛭ GM factory document — 2025 gmc my25 sierra 1500 electrical bbm, p.10.

  ⛭ 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.

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.10.

  ⛭ GM factory document — 2025 gmc new yukon denali fleet order guide, p.10.

  ⛭ GM factory document — 2026 gmc yukon denali fleet order guide, p.10.

  ⛭ GM factory document — 2027 gmc yukon fleet order guide, p.10.

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.10.

  ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.10.

  ⛭ GM factory document — 2026 gmc yukon xl denali fleet order guide, p.10.

  ⛭ GM factory document — 2027 gmc yukon xl fleet order guide, p.10.

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