- 2023–2027 Factory-verified
the GMC Canyon doc names it ProGrade trailering system; Trail Boss, Z71: S; WT, LT: O; ZR2: not offered
ZL6 Factory-verified
Also described as Advanced trailering packagePackage, trailer integrationTrailer Integration Package
Also documented for CadillacGMC
Documented applications
- 2025–2027 Factory-verified
the 2025 and 2026 guides print two ZL6 entries: the Work Truck entry includes JL1, PZ8 and the second entry includes UKW, TRG, UET (2027 prints only the second); 2025 Work Truck entry: S in 5WT, 8WT; not offered in 2WT, 3LT, 2SP, 3SP; 2025 second entry: S in 2SP, 3SP; A in 3LT; not offered in 2WT, 5WT, 8WT; 2026 Work Truck entry: S in 5WT, 8WT; not offered in 4WT, 2LT, 3LT, 4LT, 2TR, 3TR, 2SP, 3SP; 2026 second entry: S in 4LT, 3TR, 2SP, 3SP; A in 3LT, 2TR; not offered in 4WT, 5WT, 8WT, 2LT; 2027: S in 3TR; A in 3LT, 2TR; not offered in 4WT, 5WT, 8WT, 2LT; 2025 second entry: A included and only available with XTF; 2026 and 2027: included and only available with SW4
- 2023 Factory-verified
- 2020, 2022, 2024–2026 Factory-verified
- 2022–2023, 2025–2027 Factory-verified
2027: O on all trims; includes UKW, PZ8, UET
- 2022–2023, 2025–2027 Factory-verified
2027: LS, LT, RST, Z71, Premier, High Country: O; includes UKW, PZ8, UET
This page aggregates every documented appearance of ZL6 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.