Trailering assist guidelines

Years 2022–23, 2025–27 Models 3 Factory citations 14

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Also documented for Cadillac GMC

Documented applications

Silverado EV — BT1 (2024–2027)

2025 Factory-verified

2025: S in 5WT, 8WT, 3LT, 2SP, 3SP; not offered in 2WT

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

Suburban — T1XX (2021–2027)

2022–2023, 2025–2027 Factory-verified

2027: Premier, High Country: O

GM factory document — 2025 chevrolet new suburban fleet order guide, p.59.
GM factory document — 2026 chevrolet suburban fleet order guide, p.64.
GM factory document — 2027 chevrolet suburban fleet order guide, p.59.
GM factory document — 2022 chevrolet 22 suburban tahoe electrical body builder sm u 2021oct08, p.13.
GM factory document — 2023 chevrolet 23 suburban tahoe electrical body builder sm en us 2022sep13, p.13.
GM factory document — 2026 chevrolet suburban tahoe electrical body builder manual service manual 2026 en us, p.9.

Tahoe — T1XX (2021–2027)

2022–2023, 2025–2027 Factory-verified

2027: Premier, High Country: O

GM factory document — 2025 chevrolet new tahoe retail and fleet fleet order guide, p.77.
GM factory document — 2026 chevrolet tahoe retail and fleet fleet order guide, p.84.
GM factory document — 2027 chevrolet tahoe retail and fleet fleet order guide, p.76.
GM factory document — 2022 chevrolet 22 suburban tahoe electrical body builder sm u 2021oct08, p.13.
GM factory document — 2023 chevrolet 23 suburban tahoe electrical body builder sm en us 2022sep13, p.13.
GM factory document — 2026 chevrolet suburban tahoe electrical body builder manual service manual 2026 en us, p.9.

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